USA: Ohio
Counties
The population of all counties in Ohio by census years.
| Name | Status | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | |
|---|---|---|---|---|---|---|
| Adams | County | 25,371 | 27,330 | 28,550 | 27,471 | → |
| Allen | County | 109,755 | 108,473 | 106,331 | 102,211 | → |
| Ashland | County | 47,507 | 52,523 | 53,139 | 52,437 | → |
| Ashtabula | County | 99,821 | 102,728 | 101,497 | 97,567 | → |
| Athens | County | 59,549 | 62,223 | 64,757 | 62,437 | → |
| Auglaize | County | 44,585 | 46,611 | 45,949 | 46,427 | → |
| Belmont | County | 71,074 | 70,226 | 70,400 | 66,497 | → |
| Brown | County | 34,966 | 42,285 | 44,846 | 43,673 | → |
| Butler | County | 291,479 | 332,807 | 368,130 | 390,352 | → |
| Carroll | County | 26,521 | 28,836 | 28,836 | 26,716 | → |
| Champaign | County | 36,019 | 38,890 | 40,097 | 38,712 | → |
| Clark | County | 147,548 | 144,742 | 138,333 | 135,971 | → |
| Clermont | County | 150,187 | 177,977 | 197,363 | 208,595 | → |
| Clinton | County | 35,415 | 40,543 | 42,040 | 42,022 | → |
| Columbiana | County | 108,276 | 112,075 | 107,841 | 101,879 | → |
| Coshocton | County | 35,427 | 36,655 | 36,901 | 36,606 | → |
| Crawford | County | 47,870 | 46,966 | 43,784 | 42,016 | → |
| Cuyahoga | County | 1,412,140 | 1,393,978 | 1,280,122 | 1,264,775 | → |
| Darke | County | 53,619 | 53,309 | 52,959 | 51,873 | → |
| Defiance | County | 39,350 | 39,500 | 39,037 | 38,279 | → |
| Delaware | County | 66,929 | 109,989 | 174,214 | 214,135 | → |
| Erie | County | 76,779 | 79,551 | 77,079 | 75,619 | → |
| Fairfield | County | 103,461 | 122,759 | 146,156 | 158,908 | → |
| Fayette | County | 27,466 | 28,433 | 29,030 | 28,948 | → |
| Franklin | County | 961,437 | 1,068,978 | 1,163,414 | 1,323,810 | → |
| Fulton | County | 38,498 | 42,084 | 42,698 | 42,713 | → |
| Gallia | County | 30,954 | 31,069 | 30,934 | 29,216 | → |
| Geauga | County | 81,129 | 90,895 | 93,389 | 95,433 | → |
| Greene | County | 136,731 | 147,886 | 161,573 | 167,969 | → |
| Guernsey | County | 39,024 | 40,792 | 40,087 | 38,442 | → |
| Hamilton | County | 866,228 | 845,303 | 802,374 | 830,628 | → |
| Hancock | County | 65,536 | 71,295 | 74,782 | 74,920 | → |
| Hardin | County | 31,111 | 31,945 | 32,058 | 30,690 | → |
| Harrison | County | 16,085 | 15,856 | 15,864 | 14,485 | → |
| Henry | County | 29,108 | 29,210 | 28,215 | 27,663 | → |
| Highland | County | 35,728 | 40,875 | 43,589 | 43,313 | → |
| Hocking | County | 25,533 | 28,241 | 29,380 | 28,053 | → |
| Holmes | County | 32,849 | 38,943 | 42,366 | 44,214 | → |
| Huron | County | 56,240 | 59,487 | 59,626 | 58,571 | → |
| Jackson | County | 30,230 | 32,641 | 33,225 | 32,646 | → |
| Jefferson | County | 80,298 | 73,894 | 69,709 | 65,248 | → |
| Knox | County | 47,473 | 54,500 | 60,921 | 62,721 | → |
| Lake | County | 215,499 | 227,511 | 230,041 | 232,521 | → |
| Lawrence | County | 61,834 | 62,319 | 62,450 | 58,232 | → |
| Licking | County | 128,300 | 145,491 | 166,492 | 178,513 | → |
| Logan | County | 42,310 | 46,005 | 45,858 | 46,153 | → |
| Lorain | County | 271,126 | 284,664 | 301,356 | 312,956 | → |
| Lucas | County | 462,361 | 455,054 | 441,815 | 431,281 | → |
| Madison | County | 37,068 | 40,213 | 43,435 | 43,843 | → |
| Mahoning | County | 264,806 | 257,555 | 238,823 | 228,612 | → |
| Marion | County | 64,274 | 66,217 | 66,501 | 65,353 | → |
| Medina | County | 122,354 | 151,095 | 172,332 | 182,475 | → |
| Meigs | County | 22,987 | 23,072 | 23,770 | 22,206 | → |
| Mercer | County | 39,443 | 40,924 | 40,814 | 42,539 | → |
| Miami | County | 93,182 | 98,868 | 102,506 | 108,775 | → |
| Monroe | County | 15,497 | 15,180 | 14,642 | 13,383 | → |
| Montgomery | County | 573,809 | 559,062 | 535,153 | 537,306 | → |
| Morgan | County | 14,194 | 14,897 | 15,054 | 13,807 | → |
| Morrow | County | 27,749 | 31,628 | 34,827 | 34,945 | → |
| Muskingum | County | 82,068 | 84,585 | 86,074 | 86,421 | → |
| Noble | County | 11,336 | 14,058 | 14,645 | 14,110 | → |
| Ottawa | County | 40,029 | 40,985 | 41,428 | 40,362 | → |
| Paulding | County | 20,488 | 20,293 | 19,614 | 18,806 | → |
| Perry | County | 31,557 | 34,078 | 36,058 | 35,406 | → |
| Pickaway | County | 48,255 | 52,727 | 55,698 | 58,545 | → |
| Pike | County | 24,249 | 27,695 | 28,709 | 27,090 | → |
| Portage | County | 142,585 | 152,061 | 161,419 | 161,796 | → |
| Preble | County | 40,113 | 42,337 | 42,270 | 40,998 | → |
| Putnam | County | 33,819 | 34,726 | 34,499 | 34,435 | → |
| Richland | County | 126,137 | 128,852 | 124,475 | 124,927 | → |
| Ross | County | 69,330 | 73,345 | 78,064 | 77,078 | → |
| Sandusky | County | 61,963 | 61,792 | 60,944 | 58,886 | → |
| Scioto | County | 80,327 | 79,195 | 79,499 | 74,009 | → |
| Seneca | County | 59,733 | 58,683 | 56,745 | 55,076 | → |
| Shelby | County | 44,915 | 47,910 | 49,423 | 48,229 | → |
| Stark | County | 367,585 | 378,098 | 375,586 | 374,864 | → |
| Summit | County | 514,990 | 542,899 | 541,781 | 540,429 | → |
| Trumbull | County | 227,813 | 225,116 | 210,312 | 202,064 | → |
| Tuscarawas | County | 84,090 | 90,914 | 92,582 | 93,265 | → |
| Union | County | 31,969 | 40,909 | 52,300 | 62,783 | → |
| Van Wert | County | 30,464 | 29,659 | 28,744 | 28,931 | → |
| Vinton | County | 11,098 | 12,806 | 13,435 | 12,800 | → |
| Warren | County | 113,909 | 158,383 | 212,693 | 242,346 | → |
| Washington | County | 62,254 | 63,251 | 61,778 | 59,767 | → |
| Wayne | County | 101,461 | 111,564 | 114,520 | 116,900 | → |
| Williams | County | 36,956 | 39,188 | 37,642 | 37,104 | → |
| Wood | County | 113,269 | 121,065 | 125,488 | 132,247 | → |
| Wyandot | County | 22,254 | 22,908 | 22,615 | 21,896 | → |
| Ohio | State | 10,847,115 | 11,353,140 | 11,536,504 | 11,799,331 |
Contents: Places
The population of all places in Ohio by census years.
| Name | Status | County | Population Census 1990-04-01 | Population Census 2000-04-01 | Population Census 2010-04-01 | Population Census 2020-04-01 | |
|---|---|---|---|---|---|---|---|
| Aberdeen | Village | Brown | 1,475 | 1,555 | 1,638 | 1,515 | → |
| Ada | Village | Hardin | 5,433 | 5,590 | 5,961 | 5,324 | → |
| Adamsville | Village | Muskingum | 161 | 134 | 123 | 139 | → |
| Addyston | Village | Hamilton | 1,196 | 1,009 | 949 | 927 | → |
| Adelphi | Village | Ross | 394 | 369 | 380 | 317 | → |
| Adena | Village | Jefferson / Harrison | 842 | 835 | 756 | 667 | → |
| Ai | Census-Designated Place | Fulton | 160 | 44 | 137 | 322 | → |
| Akron | City | Summit | 223,142 | 216,899 | 199,077 | 190,408 | → |
| Albany | Village | Athens | 828 | 809 | 844 | 1,003 | → |
| Alexandria | Village | Licking | 468 | 248 | 514 | 485 | → |
| Alger | Village | Hardin | 881 | 871 | 863 | 842 | → |
| Alliance | City | Stark / Mahoning | 23,493 | 23,456 | 22,334 | 21,671 | → |
| Alvordton | Census-Designated Place | Williams | 297 | 305 | 217 | 200 | → |
| Amanda | Village | Fairfield | 739 | 714 | 734 | 665 | → |
| Amberley | Village | Hamilton | 3,594 | 3,408 | 3,502 | 3,847 | → |
| Amelia | Census-Designated Place | Clermont | 4,891 | 7,006 | 11,478 | 12,575 | → |
| Amesville | Village | Athens | 250 | 189 | 156 | 171 | → |
| Amherst | City | Lorain | 10,208 | 11,800 | 12,015 | 12,696 | → |
| Amsterdam | Village | Jefferson | 672 | 568 | 511 | 437 | → |
| Andersonville | Census-Designated Place | Ross | 772 | 949 | 779 | 778 | → |
| Andover | Village | Ashtabula | 1,223 | 1,284 | 1,142 | 958 | → |
| Anna | Village | Shelby | 1,177 | 1,332 | 1,572 | 1,472 | → |
| Ansonia | Village | Darke | 1,274 | 1,131 | 1,178 | 1,156 | → |
| Antioch | Village | Monroe | 74 | 90 | 86 | 75 | → |
| Antwerp | Village | Paulding | 1,746 | 1,767 | 1,736 | 1,676 | → |
| Apple Creek | Village | Wayne | 869 | 1,040 | 1,171 | 1,188 | → |
| Apple Valley | Census-Designated Place | Knox | 1,194 | 3,424 | 5,058 | 5,352 | → |
| Aquilla | Village | Geauga | 360 | 363 | 340 | 306 | → |
| Arcadia | Village | Hancock | 535 | 580 | 599 | 564 | → |
| Arcanum | Village | Darke | 2,022 | 2,114 | 2,114 | 2,355 | → |
| Archbold | Village | Fulton | 3,503 | 4,299 | 4,322 | 4,517 | → |
| Arlington | Village | Hancock | 1,264 | 1,370 | 1,465 | 1,490 | → |
| Arlington Heights | Village | Hamilton | 1,069 | 900 | 752 | 822 | → |
| Ashland | City | Ashland | 20,525 | 21,150 | 20,379 | 19,227 | → |
| Ashley | Village | Delaware | 1,205 | 1,233 | 1,330 | 1,201 | → |
| Ashtabula | City | Ashtabula | 21,602 | 21,142 | 19,127 | 17,990 | → |
| Ashville | Village | Pickaway | 2,595 | 3,131 | 4,033 | 4,531 | → |
| Athalia | Village | Lawrence | 151 | 325 | 371 | 279 | → |
| Athens | City | Athens | 21,540 | 21,308 | 23,822 | 23,842 | → |
| Attica | Village | Seneca | 946 | 927 | 897 | 871 | → |
| Atwater | Census-Designated Place | Portage | 832 | 775 | 815 | 776 | → |
| Aurora | City | Portage | 9,196 | 13,538 | 15,548 | 17,234 | → |
| Austinburg | Census-Designated Place | Ashtabula | 480 | 461 | 516 | 505 | → |
| Austintown | Census-Designated Place | Mahoning | 32,371 | 31,627 | 29,677 | 29,594 | → |
| Avon | City | Lorain | 7,340 | 11,450 | 21,181 | 24,844 | → |
| Avon Lake | City | Lorain | 15,067 | 18,146 | 22,581 | 25,202 | → |
| Bailey Lakes | Village | Ashland | 365 | 390 | 371 | 349 | → |
| Bainbridge | Census-Designated Place | Geauga | 6,522 | 7,577 | 8,031 | 9,242 | → |
| Bainbridge | Village | Ross | 975 | 929 | 860 | 760 | → |
| Bairdstown | Village | Wood | 142 | 131 | 130 | 117 | → |
| Ballville | Census-Designated Place | Sandusky | 3,399 | 3,868 | 3,791 | 3,823 | → |
| Baltic | Village | Tuscarawas / Holmes / Coshocton | 679 | 750 | 801 | 844 | → |
| Baltimore | Village | Fairfield | 2,992 | 2,878 | 2,988 | 3,038 | → |
| Bannock | Census-Designated Place | Belmont | 188 | 167 | 211 | 159 | → |
| Barberton | City | Summit | 27,880 | 27,893 | 26,538 | 25,181 | → |
| Barnesville | Village | Belmont | 4,386 | 4,244 | 4,196 | 4,017 | → |
| Barnhill | Village | Tuscarawas | 297 | 366 | 396 | 377 | → |
| Bascom | Census-Designated Place | Seneca | 360 | 410 | 390 | 397 | → |
| Bass Lake | Census-Designated Place | Geauga | 389 | 306 | 308 | 530 | → |
| Batavia | Village | Clermont | 2,002 | 2,033 | 1,906 | 1,986 | → |
| Batesville | Village | Noble | 95 | 70 | 101 | 101 | → |
| Bay View | Village | Erie | 739 | 694 | 632 | 604 | → |
| Bay Village | City | Cuyahoga | 17,000 | 16,080 | 15,651 | 16,164 | → |
| Beach City | Village | Stark | 1,048 | 1,128 | 1,024 | 943 | → |
| Beachwood | City | Cuyahoga | 10,677 | 12,218 | 11,934 | 14,040 | → |
| Beallsville | Village | Monroe | 416 | 430 | 409 | 352 | → |
| Beaver | Village | Pike | 338 | 460 | 449 | 444 | → |
| Beavercreek | City | Greene | 33,604 | 37,847 | 45,191 | 46,562 | → |
| Beaverdam | Village | Allen | 426 | 352 | 385 | 321 | → |
| Beckett Ridge | Census-Designated Place | Butler | 4,505 | 8,663 | 9,187 | 9,192 | → |
| Bedford | City | Cuyahoga | 14,863 | 14,203 | 13,083 | 13,151 | → |
| Bedford Heights | City | Cuyahoga | 12,095 | 11,367 | 10,757 | 11,020 | → |
| Beechwood Trails | Census-Designated Place | Licking | 1,875 | 2,763 | 2,762 | 3,276 | → |
| Bellaire | Village | Belmont | 5,574 | 4,854 | 4,275 | 3,874 | → |
| Bellbrook | City | Greene | 6,512 | 7,059 | 6,962 | 7,307 | → |
| Belle Center | Village | Logan | 803 | 827 | 811 | 808 | → |
| Belle Valley | Village | Noble | 276 | 279 | 224 | 200 | → |
| Bellefontaine | City | Logan | 12,213 | 13,105 | 13,370 | 14,123 | → |
| Bellevue | City | Huron / Sandusky / Erie | 8,190 | 8,284 | 8,222 | 8,240 | → |
| Bellville | Village | Richland | 1,726 | 1,765 | 1,922 | 1,959 | → |
| Belmont | Village | Belmont | 485 | 541 | 452 | 416 | → |
| Belmore | Village | Putnam | 102 | 164 | 152 | 60 | → |
| Beloit | Village | Mahoning | 1,161 | 1,144 | 978 | 905 | → |
| Belpre | City | Washington | 6,936 | 6,671 | 6,441 | 6,729 | → |
| Bentleyville | Village | Cuyahoga | 725 | 933 | 861 | 898 | → |
| Benton Ridge | Village | Hancock | 345 | 307 | 297 | 272 | → |
| Bentonville | Census-Designated Place | Adams | 147 | 61 | 287 | 253 | → |
| Berea | City | Cuyahoga | 19,047 | 19,011 | 19,109 | 18,525 | → |
| Bergholz | Village | Jefferson | 712 | 755 | 664 | 542 | → |
| Berkey | Village | Lucas | 278 | 263 | 240 | 273 | → |
| Berlin | Census-Designated Place | Holmes | 1,294 | 1,246 | 1,362 | 1,447 | → |
| Berlin Heights | Village | Erie | 688 | 730 | 714 | 649 | → |
| Bethel | Village | Clermont | 2,427 | 2,665 | 2,707 | 2,619 | → |
| Bethesda | Village | Belmont | 1,194 | 1,408 | 1,257 | 1,212 | → |
| Bettsville | Village | Seneca | 734 | 782 | 654 | 589 | → |
| Beulah Beach | Census-Designated Place | Erie | 83 | 64 | 53 | 75 | → |
| Beverly | Village | Washington | 1,574 | 1,252 | 1,312 | 1,231 | → |
| Bexley | City | Franklin | 13,101 | 13,164 | 13,054 | 13,926 | → |
| Bidwell | Census-Designated Place | Gallia | 646 | 540 | 557 | 863 | → |
| Birmingham | Census-Designated Place | Erie | 328 | 299 | 215 | 286 | → |
| Blacklick Estates | Census-Designated Place | Franklin | 9,555 | 9,518 | 8,682 | 8,990 | → |
| Bladensburg | Census-Designated Place | Knox | 89 | 94 | 191 | 180 | → |
| Blaine | Census-Designated Place | Belmont | 501 | 378 | 419 | 473 | → |
| Blakeslee | Village | Williams | 123 | 132 | 96 | 108 | → |
| Blanchester | Village | Clinton / Warren | 4,150 | 4,205 | 4,263 | 4,229 | → |
| Bloomdale | Village | Wood | 632 | 729 | 678 | 664 | → |
| Bloomingburg | Village | Fayette | 762 | 884 | 938 | 881 | → |
| Bloomingdale | Village | Jefferson | 227 | 220 | 193 | 140 | → |
| Bloomingville | Census-Designated Place | Erie | 163 | 170 | 274 | 255 | → |
| Bloomville | Village | Seneca | 972 | 1,036 | 956 | 868 | → |
| Blue Ash | City | Hamilton | 11,808 | 12,429 | 12,167 | 13,401 | → |
| Blue Jay | Census-Designated Place | Hamilton | 998 | 623 | 959 | 1,427 | → |
| Bluffton | Village | Allen / Hancock | 3,378 | 3,888 | 4,182 | 3,967 | → |
| Bolindale | Census-Designated Place | Trumbull | 2,827 | 2,489 | 2,089 | 1,921 | → |
| Bolivar | Village | Tuscarawas | 953 | 899 | 994 | 989 | → |
| Bolton | Census-Designated Place | Stark | 684 | 799 | 744 | 654 | → |
| Boston Heights | Village | Summit | 1,018 | 1,232 | 1,319 | 1,406 | → |
| Botkins | Village | Shelby | 1,389 | 1,218 | 1,169 | 1,157 | → |
| Bourneville | Census-Designated Place | Ross | 207 | 106 | 199 | 241 | → |
| Bowerston | Village | Harrison | 446 | 420 | 399 | 359 | → |
| Bowersville | Village | Greene | 218 | 306 | 333 | 268 | → |
| Bowling Green | City | Wood | 28,873 | 29,693 | 30,113 | 30,800 | → |
| Bradford | Village | Miami / Darke | 2,000 | 1,875 | 1,865 | 1,790 | → |
| Bradner | Village | Wood | 1,081 | 1,186 | 985 | 972 | → |
| Brady Lake | Census-Designated Place | Portage | 1,437 | 1,376 | 1,334 | 1,222 | → |
| Brandt | Census-Designated Place | Miami | 172 | 360 | 187 | 282 | → |
| Bratenahl | Village | Cuyahoga | 1,357 | 1,442 | 1,199 | 1,429 | → |
| Brecksville | City | Cuyahoga | 11,786 | 13,438 | 13,607 | 13,605 | → |
| Brecon | Census-Designated Place | Hamilton | 492 | 245 | 327 | 408 | → |
| Bremen | Village | Fairfield | 1,377 | 1,286 | 1,423 | 1,487 | → |
| Brewster | Village | Stark | 2,264 | 2,335 | 2,162 | 2,110 | → |
| Brice | Village | Franklin | 102 | 71 | 116 | 94 | → |
| Bridgeport | Village | Belmont | 2,366 | 2,162 | 1,839 | 1,580 | → |
| Bridgetown | Census-Designated Place | Hamilton | 14,320 | 14,873 | 14,407 | 14,731 | → |
| Brilliant | Census-Designated Place | Jefferson | 1,733 | 1,414 | 1,482 | 1,317 | → |
| Brimfield | Census-Designated Place | Portage | 3,223 | 3,248 | 3,343 | 3,365 | → |
| Broadview Heights | City | Cuyahoga | 12,283 | 15,931 | 19,423 | 19,936 | → |
| Brook Park | City | Cuyahoga | 22,857 | 21,196 | 19,201 | 18,595 | → |
| Brookfield Center | Census-Designated Place | Trumbull | 1,396 | 1,288 | 1,207 | 1,141 | → |
| Brooklyn | City | Cuyahoga | 11,706 | 11,514 | 11,243 | 11,360 | → |
| Brooklyn Heights | Village | Cuyahoga | 1,467 | 1,559 | 1,531 | 1,520 | → |
| Brookside | Village | Belmont | 651 | 591 | 616 | 540 | → |
| Brookville | City | Montgomery | 4,748 | 5,397 | 5,872 | 5,991 | → |
| Broughton | Village | Paulding | 151 | 167 | 120 | 110 | → |
| Brownsville | Census-Designated Place | Licking | 188 | 219 | 220 | 214 | → |
| Brunersburg | Census-Designated Place | Defiance | 68 | 131 | 260 | 314 | → |
| Brunswick | City | Medina | 28,506 | 33,251 | 34,283 | 35,407 | → |
| Bryan | City | Williams | 8,484 | 8,612 | 8,442 | 8,729 | → |
| Buchtel | Village | Athens / Hocking | 608 | 573 | 557 | 522 | → |
| Buckeye Lake | Village | Licking / Fairfield | 3,003 | 3,056 | 2,743 | 2,518 | → |
| Buckland | Village | Auglaize | 237 | 255 | 235 | 237 | → |
| Bucyrus | City | Crawford | 13,795 | 13,235 | 12,386 | 11,682 | → |
| Buffalo | Census-Designated Place | Guernsey | 473 | 446 | 401 | 373 | → |
| Buford | Census-Designated Place | Highland | 57 | 97 | 352 | 306 | → |
| Burbank | Village | Wayne | 285 | 285 | 205 | 292 | → |
| Burgoon | Village | Sandusky | 224 | 193 | 175 | 181 | → |
| Burkettsville | Village | Mercer / Darke | 268 | 254 | 244 | 272 | → |
| Burlington | Census-Designated Place | Lawrence | 3,003 | 2,794 | 2,676 | 2,416 | → |
| Burton | Village | Geauga | 1,370 | 1,450 | 1,452 | 1,412 | → |
| Butler | Village | Richland | 1,021 | 948 | 925 | 942 | → |
| Butlerville | Village | Warren | 267 | 129 | 165 | 157 | → |
| Byesville | Village | Guernsey | 2,504 | 2,487 | 2,444 | 2,365 | → |
| Cadiz | Village | Harrison | 3,489 | 3,311 | 3,353 | 3,054 | → |
| Cairo | Village | Allen | 474 | 496 | 552 | 519 | → |
| Calcutta | Census-Designated Place | Columbiana | 3,439 | 3,491 | 3,742 | 3,941 | → |
| Caldwell | Village | Noble | 1,795 | 1,828 | 1,710 | 1,681 | → |
| Caledonia | Village | Marion | 640 | 583 | 582 | 562 | → |
| Cambridge | City | Guernsey | 11,892 | 11,573 | 10,697 | 10,117 | → |
| Camden | Village | Preble | 2,210 | 2,298 | 2,044 | 1,987 | → |
| Camp Dennison | Census-Designated Place | Hamilton | 418 | 339 | 375 | 384 | → |
| Campbell | City | Mahoning | 10,002 | 9,450 | 8,237 | 7,859 | → |
| Canal Fulton | City | Stark | 4,285 | 5,150 | 5,430 | 5,326 | → |
| Canal Lewisville | Census-Designated Place | Coshocton | 313 | 327 | 320 | 417 | → |
| Canal Winchester | City | Franklin / Fairfield | 2,806 | 4,582 | 7,116 | 9,126 | → |
| Candlewood Lake | Census-Designated Place | Morrow | 249 | 770 | 1,147 | 1,329 | → |
| Canfield | City | Mahoning | 5,403 | 7,391 | 7,539 | 7,699 | → |
| Canton | City | Stark | 84,147 | 80,774 | 73,430 | 70,743 | → |
| Carbon Hill | Census-Designated Place | Hocking | 230 | 139 | 233 | 178 | → |
| Cardington | Village | Morrow | 1,776 | 1,871 | 2,043 | 2,079 | → |
| Carey | Village | Wyandot | 3,724 | 3,904 | 3,676 | 3,565 | → |
| Carlisle | City | Warren / Montgomery | 5,133 | 5,145 | 4,940 | 5,497 | → |
| Carroll | Village | Fairfield | 577 | 491 | 528 | 501 | → |
| Carrollton | Village | Carroll | 3,055 | 3,127 | 3,241 | 3,086 | → |
| Casstown | Village | Miami | 246 | 299 | 267 | 269 | → |
| Castalia | Village | Erie | 945 | 928 | 852 | 775 | → |
| Castine | Village | Darke | 113 | 147 | 142 | 107 | → |
| Catawba | Village | Clark | 247 | 297 | 285 | 245 | → |
| Cecil | Village | Paulding | 249 | 227 | 188 | 143 | → |
| Cedarville | Village | Greene | 2,951 | 3,586 | 3,966 | 4,297 | → |
| Celeryville | Census-Designated Place | Huron | 289 | 278 | 210 | 222 | → |
| Celina | City | Mercer | 10,044 | 10,371 | 10,418 | 10,933 | → |
| Centerburg | Village | Knox | 1,330 | 1,478 | 1,772 | 1,700 | → |
| Centerville (Thurman) | Village | Gallia | 128 | 134 | 103 | 88 | → |
| Centerville | City | Montgomery / Greene | 21,189 | 23,407 | 24,009 | 24,194 | → |
| Chagrin Falls | Village | Cuyahoga | 4,157 | 4,025 | 4,101 | 4,190 | → |
| Champion Heights | Census-Designated Place | Trumbull | 5,995 | 6,058 | 6,498 | 6,386 | → |
| Chardon | City | Geauga | 4,463 | 5,163 | 5,148 | 5,243 | → |
| Chatfield | Village | Crawford | 208 | 216 | 187 | 204 | → |
| Chauncey | Village | Athens | 1,161 | 1,073 | 1,037 | 954 | → |
| Cherry Fork | Census-Designated Place | Adams | 169 | 153 | 155 | 170 | → |
| Cherry Grove | Census-Designated Place | Hamilton | 4,972 | 4,555 | 4,378 | 4,419 | → |
| Chesapeake | Village | Lawrence | 1,164 | 852 | 742 | 763 | → |
| Cheshire | Village | Gallia | 395 | 371 | 132 | 123 | → |
| Chesterhill | Village | Morgan | 309 | 302 | 289 | 275 | → |
| Chesterland | Census-Designated Place | Geauga | 7,920 | 7,769 | 7,242 | 7,074 | → |
| Chesterville | Village | Morrow | 286 | 203 | 228 | 194 | → |
| Cheviot | City | Hamilton | 9,530 | 9,051 | 8,350 | 8,764 | → |
| Chickasaw | Village | Mercer | 382 | 359 | 293 | 358 | → |
| Chillicothe | City | Ross | 22,700 | 22,006 | 21,908 | 22,051 | → |
| Chilo | Village | Clermont | 134 | 98 | 63 | 69 | → |
| Chippewa Lake | Village | Medina | 962 | 781 | 710 | 653 | → |
| Chippewa Park | Census-Designated Place | Logan | 892 | 1,106 | 891 | 819 | → |
| Choctaw Lake | Census-Designated Place | Madison | 1,238 | 1,562 | 1,897 | 2,047 | → |
| Christiansburg | Village | Champaign | 594 | 558 | 533 | 506 | → |
| Churchill | Census-Designated Place | Trumbull | 2,691 | 2,601 | 2,149 | 2,176 | → |
| Cincinnati | City | Hamilton | 364,831 | 330,796 | 297,098 | 309,561 | → |
| Cinnamon Lake | Census-Designated Place | Ashland | 482 | 1,050 | 1,243 | 1,237 | → |
| Circleville | City | Pickaway | 13,643 | 13,524 | 13,504 | 13,926 | → |
| Clarington | Village | Monroe | 394 | 437 | 388 | 280 | → |
| Clarksburg | Village | Ross | 534 | 521 | 452 | 407 | → |
| Clarksville | Village | Clinton | 492 | 488 | 548 | 536 | → |
| Clarktown | Census-Designated Place | Scioto | 581 | 523 | 958 | 911 | → |
| Clay Center | Village | Ottawa | 326 | 324 | 274 | 260 | → |
| Clayton | City | Montgomery | 13,449 | 13,407 | 13,237 | 13,305 | → |
| Cleveland | City | Cuyahoga | 505,629 | 477,450 | 396,831 | 372,626 | → |
| Cleveland Heights | City | Cuyahoga | 53,947 | 51,233 | 46,139 | 45,314 | → |
| Cleves | Village | Hamilton | 2,209 | 2,782 | 3,241 | 3,420 | → |
| Clifton | Village | Greene / Clark | 165 | 174 | 150 | 132 | → |
| Clinton | Village | Summit | 1,170 | 1,321 | 1,217 | 1,199 | → |
| Cloverdale | Village | Putnam | 270 | 206 | 169 | 171 | → |
| Clyde | City | Sandusky | 6,211 | 5,974 | 6,400 | 6,305 | → |
| Coal Grove | Village | Lawrence | 1,831 | 2,039 | 2,148 | 1,886 | → |
| Coalton | Village | Jackson | 528 | 551 | 479 | 444 | → |
| Coldstream | Census-Designated Place | Hamilton | 589 | 1,316 | 1,173 | 1,322 | → |
| Coldwater | Village | Mercer | 4,336 | 4,484 | 4,418 | 4,772 | → |
| College Corner | Village | Butler / Preble | 390 | 416 | 398 | 389 | → |
| Collins | Census-Designated Place | Huron | 461 | 435 | 631 | 628 | → |
| Columbiana | City | Columbiana / Mahoning | 5,233 | 5,648 | 6,360 | 6,564 | → |
| Columbus | City | Franklin / Delaware/ Fairfield | 639,215 | 712,445 | 789,007 | 906,022 | → |
| Columbus Grove | Village | Putnam | 2,262 | 2,199 | 2,155 | 2,157 | → |
| Commercial Point | Village | Pickaway | 622 | 853 | 2,063 | 3,086 | → |
| Concorde Hills | Census-Designated Place | Hamilton | 517 | 541 | 663 | 644 | → |
| Conesville | Village | Coshocton | 420 | 364 | 351 | 327 | → |
| Congress | Village | Wayne | 72 | 192 | 180 | 134 | → |
| Conneaut | City | Ashtabula | 13,505 | 12,458 | 12,832 | 12,313 | → |
| Connorville | Census-Designated Place | Jefferson | 83 | 76 | 50 | 160 | → |
| Continental | Village | Putnam | 1,237 | 1,220 | 1,126 | 1,101 | → |
| Convoy | Village | Van Wert | 1,185 | 1,105 | 1,087 | 1,014 | → |
| Coolville | Village | Athens | 682 | 507 | 494 | 452 | → |
| Corning | Village | Perry | 707 | 590 | 582 | 489 | → |
| Cortland | City | Trumbull | 5,849 | 6,763 | 7,160 | 7,107 | → |
| Corwin | Village | Warren | 218 | 260 | 416 | 488 | → |
| Coshocton | City | Coshocton | 12,233 | 11,666 | 11,133 | 11,054 | → |
| Covedale | Census-Designated Place | Hamilton | 6,669 | 6,360 | 6,447 | 6,472 | → |
| Covington | Village | Miami | 2,601 | 2,656 | 2,601 | 2,552 | → |
| Craig Beach | Village | Mahoning | 1,373 | 1,254 | 1,180 | 1,076 | → |
| Crestline | Village | Crawford | 4,980 | 5,055 | 4,663 | 4,527 | → |
| Creston | Village | Wayne / Medina | 1,667 | 1,995 | 2,156 | 2,136 | → |
| Cridersville | Village | Auglaize | 1,915 | 1,906 | 1,850 | 1,796 | → |
| Crooksville | Village | Perry | 2,664 | 2,541 | 2,534 | 2,422 | → |
| Crown City | Village | Gallia | 428 | 413 | 420 | 422 | → |
| Crystal Lakes | Census-Designated Place | Clark | 1,504 | 1,411 | 1,483 | 1,394 | → |
| Crystal Rock | Census-Designated Place | Erie | 209 | 200 | 176 | 138 | → |
| Cumberland | Village | Guernsey | 345 | 405 | 364 | 317 | → |
| Curtice | Census-Designated Place | Ottawa / Lucas | 956 | 1,240 | 1,526 | 1,552 | → |
| Custar | Village | Wood | 193 | 202 | 179 | 178 | → |
| Cuyahoga Falls | City | Summit | 48,862 | 49,401 | 49,588 | 51,116 | → |
| Cuyahoga Heights | Village | Cuyahoga | 671 | 599 | 638 | 573 | → |
| Cygnet | Village | Wood | 560 | 560 | 597 | 545 | → |
| Cynthiana | Census-Designated Place | Pike | 63 | 52 | 68 | 57 | → |
| Dalton | Village | Wayne | 1,394 | 1,609 | 1,870 | 1,929 | → |
| Damascus | Census-Designated Place | Mahoning / Columbiana | 264 | 286 | 443 | 418 | → |
| Danville | Village | Knox | 1,012 | 1,115 | 1,048 | 1,019 | → |
| Darbydale | Census-Designated Place | Franklin | 808 | 726 | 793 | 768 | → |
| Darbyville | Village | Pickaway | 258 | 284 | 223 | 186 | → |
| Darrtown | Census-Designated Place | Butler | 561 | 582 | 516 | 514 | → |
| Day Heights | Census-Designated Place | Clermont | 2,812 | 2,823 | 2,620 | 2,625 | → |
| Dayton | City | Montgomery | 182,422 | 165,579 | 141,930 | 137,677 | → |
| De Graff | Village | Logan | 1,338 | 1,246 | 1,286 | 1,252 | → |
| Deer Park | City | Hamilton | 6,360 | 6,037 | 5,645 | 5,429 | → |
| Deersville | Village | Harrison | 84 | 81 | 77 | 66 | → |
| Defiance | City | Defiance | 16,890 | 16,621 | 17,073 | 17,059 | → |
| Delaware | City | Delaware | 20,356 | 25,652 | 34,800 | 41,327 | → |
| Delhi Hills | Census-Designated Place | Hamilton | 5,263 | 6,568 | 5,259 | 5,022 | → |
| Dellroy | Village | Carroll | 314 | 295 | 356 | 269 | → |
| Delphos | City | Allen / Van Wert | 7,135 | 7,245 | 7,131 | 7,127 | → |
| Delshire | Census-Designated Place | Hamilton | 3,526 | 2,491 | 3,180 | 3,158 | → |
| Delta | Village | Fulton | 2,861 | 3,030 | 3,093 | 3,327 | → |
| Dennison | Village | Tuscarawas | 3,289 | 2,963 | 2,663 | 2,690 | → |
| Dent | Census-Designated Place | Hamilton | 6,416 | 7,612 | 10,497 | 12,301 | → |
| Derby | Census-Designated Place | Pickaway | 337 | 353 | 408 | 355 | → |
| Deshler | Village | Henry | 1,882 | 1,835 | 1,799 | 1,591 | → |
| Devola | Census-Designated Place | Washington | 2,736 | 2,771 | 2,652 | 2,639 | → |
| Dexter City | Village | Noble | 161 | 163 | 126 | 84 | → |
| Dillonvale | Census-Designated Place | Hamilton | 4,209 | 3,716 | 3,474 | 3,436 | → |
| Dillonvale | Village | Jefferson | 1,121 | 724 | 638 | 615 | → |
| Dola | Census-Designated Place | Hardin | 97 | 98 | 140 | 143 | → |
| Donnelsville | Village | Clark | 303 | 278 | 270 | 260 | → |
| Dover | City | Tuscarawas | 11,944 | 12,480 | 12,874 | 13,197 | → |
| Doylestown | Village | Wayne | 2,804 | 2,826 | 3,042 | 3,050 | → |
| Dresden | Village | Muskingum | 1,620 | 1,423 | 1,547 | 1,656 | → |
| Drexel | Census-Designated Place | Montgomery | 2,474 | 2,057 | 2,076 | 1,693 | → |
| Dry Ridge | Census-Designated Place | Hamilton | 1,905 | 1,895 | 2,782 | 2,698 | → |
| Dry Run | Census-Designated Place | Hamilton | 5,389 | 6,553 | 7,281 | 7,672 | → |
| Dublin | City | Franklin / Delaware / Union | 17,079 | 31,361 | 41,396 | 49,315 | → |
| Duncan Falls | Census-Designated Place | Muskingum | 878 | 775 | 880 | 898 | → |
| Dundee | Census-Designated Place | Tuscarawas | 123 | 203 | 297 | 269 | → |
| Dunkirk | Village | Hardin | 892 | 954 | 871 | 771 | → |
| Dunlap | Census-Designated Place | Hamilton | 1,246 | 1,953 | 1,719 | 1,658 | → |
| Dupont | Village | Putnam | 274 | 271 | 320 | 209 | → |
| East Alliance | Census-Designated Place | Mahoning | 287 | 393 | 360 | 268 | → |
| East Canton | Village | Stark | 1,724 | 1,634 | 1,587 | 1,519 | → |
| East Cleveland | City | Cuyahoga | 33,086 | 27,185 | 17,815 | 13,783 | → |
| East Fultonham | Census-Designated Place | Muskingum | 304 | 282 | 335 | 290 | → |
| East Liberty | Census-Designated Place | Logan | 245 | 232 | 366 | 371 | → |
| East Liverpool | City | Columbiana | 13,743 | 13,111 | 11,199 | 9,961 | → |
| East Palestine | Village | Columbiana | 5,234 | 4,955 | 4,714 | 4,762 | → |
| East Rochester | Census-Designated Place | Columbiana | 197 | 193 | 231 | 224 | → |
| East Sparta | Village | Stark | 818 | 822 | 807 | 748 | → |
| East Springfield | Census-Designated Place | Jefferson | 191 | 119 | 118 | 185 | → |
| Eastlake | City | Lake | 21,081 | 20,256 | 18,606 | 17,666 | → |
| Eaton | City | Preble | 7,479 | 8,285 | 8,404 | 8,390 | → |
| Eaton Estates | Census-Designated Place | Lorain | 1,586 | 1,409 | 1,222 | 1,155 | → |
| Edgerton | Village | Williams | 2,038 | 1,963 | 2,007 | 1,881 | → |
| Edgewood | Census-Designated Place | Ashtabula | 5,189 | 4,762 | 4,432 | 4,185 | → |
| Edison | Village | Morrow | 489 | 436 | 437 | 420 | → |
| Edon | Village | Williams | 897 | 890 | 838 | 787 | → |
| Eldorado | Village | Preble | 547 | 545 | 511 | 457 | → |
| Elgin | Village | Van Wert | 71 | 62 | 57 | 45 | → |
| Elida | Village | Allen | 1,690 | 1,834 | 1,882 | 1,924 | → |
| Elizabethtown | Census-Designated Place | Hamilton | 368 | 361 | 350 | 323 | → |
| Elmore | Village | Ottawa / Sandusky | 1,400 | 1,354 | 1,461 | 1,402 | → |
| Elmwood Place | Village | Hamilton | 2,865 | 2,640 | 2,203 | 2,088 | → |
| Elyria | City | Lorain | 56,877 | 55,834 | 54,562 | 52,668 | → |
| Empire | Village | Jefferson | 368 | 305 | 299 | 230 | → |
| Englewood | City | Montgomery | 11,675 | 12,161 | 13,439 | 13,462 | → |
| Enon | Village | Clark | 2,781 | 2,588 | 2,444 | 2,467 | → |
| Etna | Census-Designated Place | Licking | 334 | 586 | 1,215 | 1,209 | → |
| Euclid | City | Cuyahoga | 54,863 | 52,725 | 48,901 | 49,689 | → |
| Evendale | Village | Hamilton | 3,076 | 3,136 | 2,725 | 2,670 | → |
| Fairborn | City | Greene | 31,152 | 32,001 | 32,955 | 34,524 | → |
| Fairfax | Village | Hamilton | 1,991 | 1,938 | 1,699 | 1,768 | → |
| Fairfield | City | Butler / Hamilton | 39,673 | 42,065 | 42,501 | 44,898 | → |
| Fairfield Beach | Census-Designated Place | Fairfield | 1,084 | 1,163 | 1,292 | 1,267 | → |
| Fairlawn | City | Summit | 6,077 | 7,528 | 7,527 | 7,714 | → |
| Fairport Harbor | Village | Lake | 3,123 | 3,188 | 3,108 | 3,109 | → |
| Fairview | Village | Guernsey | 77 | 87 | 83 | 70 | → |
| Fairview Park | City | Cuyahoga | 18,014 | 17,694 | 16,823 | 17,309 | → |
| Farmersville | Village | Montgomery | 944 | 965 | 1,009 | 979 | → |
| Fayette | Village | Fulton | 1,233 | 1,336 | 1,281 | 1,306 | → |
| Fayetteville | Village | Brown | 400 | 314 | 328 | 314 | → |
| Felicity | Village | Clermont | 863 | 886 | 813 | 645 | → |
| Findlay | City | Hancock | 36,187 | 39,368 | 41,189 | 40,297 | → |
| Finneytown | Census-Designated Place | Hamilton | 13,096 | 13,492 | 12,741 | 12,399 | → |
| Five Points | Census-Designated Place | Warren | 811 | 1,485 | 1,824 | 2,247 | → |
| Flat Rock | Census-Designated Place | Seneca | 150 | 97 | 233 | 227 | → |
| Fletcher | Village | Miami | 541 | 507 | 467 | 450 | → |
| Florida | Village | Henry | 318 | 248 | 232 | 221 | → |
| Flushing | Village | Belmont | 1,045 | 913 | 881 | 835 | → |
| Forest | Village | Hardin | 1,588 | 1,504 | 1,461 | 1,353 | → |
| Forest Park | City | Hamilton | 18,630 | 19,361 | 18,702 | 20,191 | → |
| Forestville | Census-Designated Place | Hamilton | 9,185 | 10,978 | 10,532 | 10,615 | → |
| Fort Jennings | Village | Putnam | 431 | 437 | 489 | 522 | → |
| Fort Loramie | Village | Shelby | 1,083 | 1,357 | 1,503 | 1,602 | → |
| Fort McKinley | Census-Designated Place | Montgomery | 4,260 | 3,989 | 3,528 | 3,473 | → |
| Fort Recovery | Village | Mercer | 1,356 | 1,279 | 1,462 | 1,498 | → |
| Fort Seneca | Census-Designated Place | Seneca | 131 | 139 | 254 | 230 | → |
| Fort Shawnee | Census-Designated Place | Allen | 6,140 | 6,102 | 6,368 | 6,263 | → |
| Fostoria | City | Seneca / Wood | 15,063 | 13,889 | 13,451 | 13,053 | → |
| Four Bridges | Census-Designated Place | Butler | 86 | 335 | 2,919 | 3,401 | → |
| Frankfort | Village | Ross | 1,002 | 1,009 | 1,069 | 1,116 | → |
| Franklin | City | Warren | 11,546 | 11,298 | 11,762 | 11,687 | → |
| Franklin Furnace | Census-Designated Place | Scioto | 1,212 | 1,537 | 1,660 | 1,525 | → |
| Frazeysburg | Village | Muskingum | 1,217 | 1,282 | 1,306 | 1,351 | → |
| Fredericksburg | Village | Wayne | 495 | 480 | 415 | 406 | → |
| Fredericktown | Village | Knox | 2,564 | 2,521 | 2,493 | 2,647 | → |
| Freeport | Village | Harrison | 474 | 402 | 368 | 322 | → |
| Fremont | City | Sandusky | 17,875 | 17,716 | 16,633 | 15,908 | → |
| Fresno | Census-Designated Place | Coshocton | 91 | 94 | 140 | 140 | → |
| Friendship | Census-Designated Place | Scioto | 350 | 97 | 351 | 343 | → |
| Fruit Hill | Census-Designated Place | Hamilton | 4,101 | 3,945 | 3,755 | 3,748 | → |
| Fulton | Village | Morrow | 339 | 256 | 252 | 248 | → |
| Fultonham | Village | Muskingum | 166 | 129 | 162 | 109 | → |
| Gahanna | City | Franklin | 24,232 | 32,599 | 33,226 | 35,727 | → |
| Galena | Village | Delaware | 399 | 361 | 663 | 921 | → |
| Galion | City | Crawford / Richland / Morrow | 11,954 | 11,546 | 10,607 | 10,442 | → |
| Gallipolis | Village | Gallia | 5,405 | 4,169 | 3,648 | 3,317 | → |
| Gambier | Village | Knox | 2,078 | 2,021 | 2,391 | 2,219 | → |
| Gann (Brinkhaven) | Village | Knox | 183 | 143 | 123 | 113 | → |
| Garfield Heights | City | Cuyahoga | 31,724 | 30,762 | 28,884 | 29,791 | → |
| Garrettsville | Village | Portage | 2,047 | 2,232 | 2,338 | 2,455 | → |
| Gates Mills | Village | Cuyahoga | 2,512 | 2,493 | 2,277 | 2,268 | → |
| Geneva | City | Ashtabula | 6,671 | 6,611 | 6,204 | 5,925 | → |
| Geneva-on-the-Lake | Village | Ashtabula | 1,619 | 1,572 | 1,254 | 945 | → |
| Genoa | Village | Ottawa | 2,456 | 2,397 | 2,333 | 2,229 | → |
| Georgetown | Village | Brown | 3,726 | 3,723 | 4,498 | 4,456 | → |
| Germantown | City | Montgomery | 4,929 | 4,921 | 5,533 | 5,793 | → |
| Gettysburg | Village | Darke | 539 | 543 | 518 | 465 | → |
| Gibsonburg | Village | Sandusky | 2,550 | 2,475 | 2,581 | 2,490 | → |
| Gilboa | Village | Putnam | 211 | 168 | 184 | 168 | → |
| Girard | City | Trumbull | 11,355 | 10,822 | 9,933 | 9,595 | → |
| Glandorf | Village | Putnam | 822 | 932 | 1,002 | 965 | → |
| Glencoe | Census-Designated Place | Belmont | 366 | 349 | 310 | 264 | → |
| Glendale | Village | Hamilton | 2,357 | 2,184 | 2,150 | 2,299 | → |
| Glenford | Village | Perry | 208 | 189 | 173 | 166 | → |
| Glenmont | Village | Holmes | 236 | 287 | 273 | 239 | → |
| Glenmoor | Census-Designated Place | Columbiana | 2,307 | 2,192 | 1,987 | 1,829 | → |
| Glenwillow | Village | Cuyahoga | 454 | 432 | 910 | 994 | → |
| Gloria Glens Park | Village | Medina | 475 | 538 | 425 | 368 | → |
| Glouster | Village | Athens | 2,007 | 1,971 | 1,794 | 1,668 | → |
| Gnadenhutten | Village | Tuscarawas | 1,234 | 1,291 | 1,288 | 1,234 | → |
| Golf Manor | Village | Hamilton | 4,164 | 4,021 | 3,602 | 3,807 | → |
| Gomer | Census-Designated Place | Allen | 422 | 429 | 373 | 345 | → |
| Good Hope | Census-Designated Place | Fayette | 117 | 112 | 234 | 202 | → |
| Gordon | Village | Darke | 222 | 168 | 224 | 235 | → |
| Goshen | Census-Designated Place | Clermont | 621 | 676 | 583 | 715 | → |
| Grafton | Village | Lorain | 3,418 | 5,935 | 6,711 | 5,919 | → |
| Grand Rapids | Village | Wood | 966 | 992 | 970 | 923 | → |
| Grand River | Village | Lake | 292 | 354 | 413 | 396 | → |
| Grandview | Census-Designated Place | Hamilton | 1,301 | 1,391 | 1,466 | 1,312 | → |
| Grandview Heights | City | Franklin | 7,032 | 6,803 | 6,507 | 8,086 | → |
| Granville | Village | Licking | 4,579 | 3,217 | 5,675 | 5,948 | → |
| Granville South | Census-Designated Place | Licking | 1,124 | 1,194 | 1,410 | 1,420 | → |
| Gratiot | Village | Licking / Muskingum | 189 | 193 | 218 | 214 | → |
| Gratis | Village | Preble | 994 | 969 | 879 | 840 | → |
| Graysville | Village | Monroe | 82 | 105 | 78 | 68 | → |
| Green | City | Summit | 19,130 | 22,821 | 25,742 | 27,481 | → |
| Green Camp | Village | Marion | 389 | 346 | 374 | 309 | → |
| Green Meadows | Census-Designated Place | Clark | 2,526 | 2,318 | 2,327 | 2,373 | → |
| Green Springs | Village | Seneca / Sandusky | 1,446 | 1,265 | 1,367 | 1,300 | → |
| Greenfield | Village | Highland / Ross | 5,150 | 4,906 | 4,643 | 4,339 | → |
| Greenhills | Village | Hamilton | 4,425 | 4,084 | 3,605 | 3,739 | → |
| Greentown | Census-Designated Place | Stark | 1,704 | 2,918 | 3,524 | 3,382 | → |
| Greenville | City | Darke | 12,908 | 13,613 | 13,253 | 12,798 | → |
| Greenwich | Village | Huron | 1,448 | 1,526 | 1,476 | 1,402 | → |
| Groesbeck | Census-Designated Place | Hamilton | 6,684 | 7,202 | 6,788 | 7,365 | → |
| Grove City | City | Franklin | 21,397 | 27,430 | 35,633 | 41,248 | → |
| Groveport | City | Franklin | 3,452 | 4,118 | 5,374 | 6,009 | → |
| Grover Hill | Village | Paulding | 538 | 404 | 402 | 382 | → |
| Guilford Lake | Census-Designated Place | Columbiana | 1,042 | 1,287 | 1,272 | 1,188 | → |
| Hamburg | Census-Designated Place | Fairfield | 490 | 526 | 522 | 456 | → |
| Hamden | Village | Vinton | 911 | 899 | 879 | 724 | → |
| Hamersville | Village | Brown | 582 | 516 | 541 | 493 | → |
| Hamilton | City | Butler | 61,492 | 60,714 | 62,253 | 63,393 | → |
| Hamler | Village | Henry | 636 | 657 | 576 | 603 | → |
| Hanging Rock | Village | Lawrence | 613 | 268 | 226 | 202 | → |
| Hannibal | Census-Designated Place | Monroe | 213 | 321 | 411 | 314 | → |
| Hanover | Village | Licking | 877 | 890 | 919 | 1,268 | → |
| Hanoverton | Village | Columbiana | 416 | 391 | 411 | 354 | → |
| Harbor Hills | Census-Designated Place | Licking | 1,372 | 1,303 | 1,509 | 1,565 | → |
| Harbor View | Village | Lucas | 118 | 130 | 106 | 89 | → |
| Harpster | Village | Wyandot | 233 | 203 | 204 | 161 | → |
| Harrisburg | Village | Franklin | 340 | 331 | 321 | 314 | → |
| Harrisburg | Census-Designated Place | Stark | 215 | 203 | 218 | 306 | → |
| Harrison | City | Hamilton | 8,104 | 8,017 | 9,964 | 12,561 | → |
| Harrisville | Village | Harrison | 293 | 265 | 235 | 178 | → |
| Harrod | Village | Allen | 536 | 500 | 419 | 427 | → |
| Hartford (Croton) | Village | Licking | 423 | 409 | 397 | 407 | → |
| Hartville | Village | Stark | 2,811 | 2,813 | 2,965 | 3,334 | → |
| Harveysburg | Village | Warren | 437 | 555 | 547 | 555 | → |
| Haskins | Village | Wood | 542 | 643 | 1,188 | 1,244 | → |
| Haviland | Village | Paulding | 212 | 186 | 210 | 161 | → |
| Haydenville | Census-Designated Place | Hocking | 406 | 401 | 381 | 337 | → |
| Hayesville | Village | Ashland | 430 | 349 | 451 | 461 | → |
| Heath | City | Licking | 7,396 | 8,646 | 10,290 | 10,446 | → |
| Hebron | Village | Licking | 2,116 | 2,091 | 2,336 | 2,325 | → |
| Helena | Village | Sandusky | 249 | 236 | 222 | 212 | → |
| Hemlock | Village | Perry | 198 | 164 | 149 | 147 | → |
| Hessville | Census-Designated Place | Sandusky | 159 | 189 | 214 | 174 | → |
| Hicksville | Village | Defiance | 3,635 | 3,666 | 3,553 | 3,429 | → |
| Hidden Lakes | Census-Designated Place | Morrow | ... | ... | 31 | 16 | → |
| Hide-A-Way Hills | Census-Designated Place | Hocking / Fairfield | 521 | 350 | 794 | 976 | → |
| Higginsport | Village | Brown | 298 | 291 | 251 | 215 | → |
| Highland | Village | Highland | 264 | 279 | 254 | 229 | → |
| Highland Heights | City | Cuyahoga | 6,277 | 8,053 | 8,345 | 8,721 | → |
| Highland Hills | Village | Cuyahoga | 1,723 | 1,646 | 1,129 | 669 | → |
| Highland Holiday | Census-Designated Place | Highland | 269 | 491 | 550 | 571 | → |
| Highpoint | Census-Designated Place | Hamilton | 1,571 | 1,642 | 1,503 | 1,558 | → |
| Hilliard | City | Franklin | 12,169 | 23,912 | 28,235 | 37,168 | → |
| Hills and Dales | Village | Stark | 297 | 259 | 231 | 251 | → |
| Hillsboro | City | Highland | 6,276 | 6,368 | 6,601 | 6,443 | → |
| Hilltop | Census-Designated Place | Trumbull | 571 | 701 | 705 | 658 | → |
| Hiram | Village | Portage | 1,334 | 1,264 | 1,406 | 995 | → |
| Hockingport | Census-Designated Place | Athens | 80 | 83 | 212 | 205 | → |
| Holgate | Village | Henry | 1,291 | 1,210 | 1,109 | 1,062 | → |
| Holiday City | Village | Williams | 66 | 75 | 48 | 51 | → |
| Holiday Lakes | Census-Designated Place | Huron | 663 | 554 | 749 | 828 | → |
| Holiday Valley | Census-Designated Place | Clark | 1,074 | 1,569 | 1,510 | 1,480 | → |
| Holland | Village | Lucas | 1,250 | 1,347 | 1,743 | 1,825 | → |
| Hollansburg | Village | Darke | 294 | 207 | 231 | 246 | → |
| Holloway | Village | Belmont | 309 | 354 | 336 | 332 | → |
| Holmesville | Village | Holmes | 419 | 380 | 372 | 373 | → |
| Homeworth | Census-Designated Place | Columbiana | 445 | 453 | 481 | 492 | → |
| Hooven | Census-Designated Place | Hamilton | 659 | 474 | 534 | 464 | → |
| Hopedale | Village | Harrison | 856 | 976 | 950 | 921 | → |
| Howard | Census-Designated Place | Knox | 207 | 169 | 242 | 246 | → |
| Howland Center | Census-Designated Place | Trumbull | 6,732 | 6,481 | 6,351 | 6,351 | → |
| Hoytville | Village | Wood | 293 | 301 | 303 | 223 | → |
| Hubbard | City | Trumbull | 8,318 | 8,176 | 7,895 | 7,635 | → |
| Huber Heights | City | Montgomery / Miami | 38,737 | 38,214 | 38,110 | 43,429 | → |
| Huber Ridge | Census-Designated Place | Franklin | 5,255 | 4,883 | 4,604 | 4,940 | → |
| Hudson | City | Summit | 16,853 | 22,397 | 22,265 | 23,090 | → |
| Hunter | Census-Designated Place | Warren | 2,057 | 1,953 | 2,640 | 3,363 | → |
| Hunting Valley | Village | Cuyahoga / Geauga | 786 | 733 | 709 | 759 | → |
| Huntsville | Village | Logan | 379 | 442 | 442 | 403 | → |
| Huron | City | Erie | 7,158 | 7,670 | 7,172 | 6,904 | → |
| Iberia | Census-Designated Place | Morrow | 388 | 353 | 452 | 431 | → |
| Independence | City | Cuyahoga | 6,556 | 7,035 | 7,153 | 7,585 | → |
| Irondale | Village | Jefferson | 382 | 430 | 384 | 327 | → |
| Ironton | City | Lawrence | 12,933 | 11,441 | 11,085 | 10,571 | → |
| Ithaca | Village | Darke | 81 | 104 | 136 | 93 | → |
| Jackson | City | Jackson | 6,159 | 6,238 | 6,394 | 6,256 | → |
| Jackson Center | Village | Shelby | 1,409 | 1,378 | 1,462 | 1,442 | → |
| Jacksonburg | Village | Butler | 49 | 65 | 65 | 53 | → |
| Jacksontown | Census-Designated Place | Licking | 287 | 258 | 169 | 402 | → |
| Jacksonville | Village | Athens | 560 | 535 | 484 | 401 | → |
| Jamestown | Village | Greene | 1,719 | 1,856 | 2,033 | 2,054 | → |
| Jefferson | Village | Ashtabula | 3,405 | 3,450 | 3,117 | 3,219 | → |
| Jeffersonville | Village | Fayette | 1,338 | 1,254 | 1,207 | 1,256 | → |
| Jenera | Village | Hancock | 272 | 234 | 221 | 251 | → |
| Jeromesville | Village | Ashland | 578 | 470 | 562 | 531 | → |
| Jerry City | Village | Wood | 512 | 459 | 427 | 456 | → |
| Jersey | Census-Designated Place | Licking | 374 | 389 | 338 | 427 | → |
| Jerusalem | Village | Monroe | 161 | 155 | 161 | 124 | → |
| Jewett | Village | Harrison | 785 | 786 | 692 | 552 | → |
| Johnstown | City | Licking | 3,435 | 3,412 | 4,645 | 5,186 | → |
| Junction City | Village | Perry | 773 | 834 | 819 | 722 | → |
| Kalida | Village | Putnam | 1,022 | 1,175 | 1,553 | 1,456 | → |
| Kanauga | Census-Designated Place | Gallia | 181 | 186 | 175 | 185 | → |
| Kansas | Census-Designated Place | Seneca | 164 | 228 | 179 | 175 | → |
| Kelleys Island | Village | Erie | 172 | 367 | 312 | 256 | → |
| Kent | City | Portage | 29,782 | 27,986 | 28,904 | 28,207 | → |
| Kenton | City | Hardin | 8,538 | 8,411 | 8,324 | 7,944 | → |
| Kenwood | Census-Designated Place | Hamilton | 8,107 | 7,956 | 7,383 | 7,570 | → |
| Kettering | City | Montgomery / Greene | 60,387 | 57,707 | 56,128 | 57,860 | → |
| Kettlersville | Village | Shelby | 194 | 175 | 179 | 167 | → |
| Kidron | Census-Designated Place | Wayne | 677 | 720 | 944 | 966 | → |
| Kilbourne | Census-Designated Place | Delaware | 95 | 50 | 139 | 127 | → |
| Killbuck | Village | Holmes | 795 | 894 | 852 | 808 | → |
| Kimbolton | Census-Designated Place | Guernsey | 132 | 190 | 144 | 152 | → |
| Kings Mills | Census-Designated Place | Warren | 511 | 1,099 | 1,319 | 1,336 | → |
| Kingston | Village | Ross | 1,152 | 1,048 | 1,033 | 1,260 | → |
| Kingsville | Census-Designated Place | Ashtabula | 1,105 | 957 | 886 | 824 | → |
| Kinsman Center | Census-Designated Place | Trumbull | 664 | 645 | 616 | 574 | → |
| Kipton | Village | Lorain | 288 | 258 | 243 | 211 | → |
| Kirby | Village | Wyandot | 155 | 131 | 118 | 118 | → |
| Kirkersville | Village | Licking | 544 | 507 | 525 | 467 | → |
| Kirtland | City | Lake | 5,955 | 6,658 | 6,853 | 6,935 | → |
| Kirtland Hills | Village | Lake | 482 | 597 | 650 | 692 | → |
| Kunkle | Census-Designated Place | Williams | 235 | 188 | 246 | 173 | → |
| La Croft | Census-Designated Place | Columbiana | 1,427 | 1,307 | 1,144 | 1,078 | → |
| La Rue | Village | Marion | 817 | 773 | 747 | 682 | → |
| Lafayette | Village | Allen | 440 | 286 | 439 | 402 | → |
| Lafayette | Census-Designated Place | Madison | 194 | 240 | 202 | 206 | → |
| Lafferty | Census-Designated Place | Belmont | 285 | 261 | 304 | 255 | → |
| Lagrange | Village | Lorain | 1,246 | 1,823 | 2,109 | 2,600 | → |
| Lake Buckhorn | Census-Designated Place | Holmes | 287 | 399 | 601 | 720 | → |
| Lake Darby | Census-Designated Place | Franklin | 2,798 | 3,727 | 4,592 | 4,731 | → |
| Lake Lakengren | Census-Designated Place | Preble | 1,112 | 2,745 | 3,383 | 3,387 | → |
| Lake Lorelei | Census-Designated Place | Brown | 822 | 1,278 | 1,170 | 1,172 | → |
| Lake Milton | Census-Designated Place | Mahoning | 579 | 662 | 562 | 637 | → |
| Lake Mohawk | Census-Designated Place | Carroll | 1,205 | 1,379 | 1,652 | 1,601 | → |
| Lake Seneca | Census-Designated Place | Williams | 326 | 492 | 465 | 529 | → |
| Lake Tomahawk | Census-Designated Place | Columbiana | 358 | 456 | 485 | 494 | → |
| Lake Waynoka | Census-Designated Place | Brown | 265 | 698 | 1,173 | 1,381 | → |
| Lakeline | Village | Lake | 182 | 213 | 226 | 217 | → |
| Lakemore | Village | Summit | 2,700 | 2,628 | 3,064 | 2,924 | → |
| Lakeside | Census-Designated Place | Ottawa | 955 | 850 | 694 | 668 | → |
| Lakeview | Village | Logan | 1,048 | 1,061 | 1,075 | 1,181 | → |
| Lakewood | City | Cuyahoga | 59,652 | 56,673 | 52,166 | 50,940 | → |
| Lancaster | City | Fairfield | 34,774 | 35,328 | 38,764 | 40,535 | → |
| Landen | Census-Designated Place | Warren | 4,734 | 7,228 | 6,782 | 6,995 | → |
| Lansing | Census-Designated Place | Belmont | 528 | 497 | 634 | 596 | → |
| Latty | Village | Paulding | 205 | 200 | 193 | 163 | → |
| Laura | Village | Miami | 496 | 493 | 470 | 400 | → |
| Laurelville | Village | Hocking | 602 | 531 | 525 | 522 | → |
| Lawrenceville | Census-Designated Place | Clark | 393 | 324 | 242 | 667 | → |
| Leavittsburg | Census-Designated Place | Trumbull | 2,135 | 2,050 | 1,830 | 1,571 | → |
| Lebanon | City | Warren | 10,864 | 17,013 | 20,036 | 20,865 | → |
| Leesburg | Village | Highland | 1,152 | 1,261 | 1,311 | 1,272 | → |
| Leesville | Village | Carroll | 156 | 184 | 157 | 127 | → |
| Leetonia | Village | Columbiana | 2,039 | 2,010 | 1,965 | 1,835 | → |
| Leipsic | Village | Putnam | 2,219 | 2,265 | 2,099 | 2,188 | → |
| Lewisburg | Village | Preble | 1,560 | 1,814 | 1,828 | 1,748 | → |
| Lewistown | Census-Designated Place | Logan | 103 | 88 | 222 | 202 | → |
| Lewisville | Village | Monroe | 266 | 238 | 176 | 186 | → |
| Lexington | Village | Richland | 4,467 | 4,167 | 4,809 | 4,845 | → |
| Liberty Center | Village | Henry | 1,083 | 1,116 | 1,184 | 1,106 | → |
| Lima | City | Allen | 45,241 | 40,307 | 38,620 | 35,531 | → |
| Limaville | Census-Designated Place | Stark | 154 | 195 | 151 | 151 | → |
| Lincoln Heights | Village | Hamilton | 4,806 | 4,105 | 3,291 | 3,143 | → |
| Lincoln Heights | Census-Designated Place | Richland | 1,165 | 1,103 | 1,076 | 1,039 | → |
| Lincoln Village | Census-Designated Place | Franklin | 9,958 | 9,482 | 9,032 | 9,702 | → |
| Lindsey | Village | Sandusky | 568 | 502 | 446 | 454 | → |
| Linndale | Village | Cuyahoga | 136 | 100 | 154 | 113 | → |
| Lisbon | Village | Columbiana | 3,120 | 2,863 | 2,834 | 2,594 | → |
| Lithopolis | Village | Fairfield / Franklin | 690 | 806 | 1,111 | 2,144 | → |
| Little Hocking | Census-Designated Place | Washington | 268 | 260 | 263 | 244 | → |
| Lloydsville | Census-Designated Place | Belmont | 203 | 217 | 121 | 280 | → |
| Lockbourne | Village | Franklin / Pickaway | 238 | 278 | 238 | 237 | → |
| Lockington | Village | Shelby | 216 | 206 | 141 | 160 | → |
| Lockland | Village | Hamilton | 4,243 | 3,706 | 3,448 | 3,514 | → |
| Lodi | Village | Medina | 3,064 | 3,054 | 2,751 | 2,746 | → |
| Logan | City | Hocking | 6,748 | 6,943 | 7,057 | 7,296 | → |
| Logan Elm Village | Census-Designated Place | Pickaway | 747 | 1,062 | 1,118 | 1,045 | → |
| London | City | Madison | 7,951 | 8,749 | 9,899 | 10,273 | → |
| Lorain | City | Lorain | 71,255 | 68,821 | 64,027 | 65,218 | → |
| Lordstown | Village | Trumbull | 3,520 | 3,513 | 3,424 | 3,331 | → |
| Lore City | Village | Guernsey | 379 | 321 | 325 | 283 | → |
| Loudonville | Village | Ashland / Holmes | 2,914 | 2,953 | 2,639 | 2,781 | → |
| Louisville | City | Stark | 8,167 | 8,761 | 9,261 | 9,500 | → |
| Loveland | City | Hamilton / Clermont / Warren | 10,340 | 11,678 | 12,115 | 13,312 | → |
| Loveland Park | Census-Designated Place | Warren / Hamilton | 1,518 | 1,715 | 1,770 | 1,737 | → |
| Lowell | Village | Washington | 744 | 588 | 547 | 565 | → |
| Lowellville | Village | Mahoning | 1,349 | 1,237 | 1,155 | 1,002 | → |
| Lower Salem | Village | Washington | 103 | 109 | 86 | 74 | → |
| Lucas | Village | Richland | 741 | 629 | 605 | 589 | → |
| Lucasville | Census-Designated Place | Scioto | 1,754 | 1,833 | 3,050 | 1,655 | → |
| Luckey | Village | Wood | 852 | 999 | 1,012 | 1,007 | → |
| Ludlow Falls | Village | Miami | 283 | 216 | 208 | 172 | → |
| Lynchburg | Village | Highland / Clinton | 1,232 | 1,364 | 1,492 | 1,514 | → |
| Lyndhurst | City | Cuyahoga | 15,971 | 15,252 | 13,974 | 14,045 | → |
| Lyons | Village | Fulton | 562 | 563 | 566 | 603 | → |
| Macedonia | City | Summit | 7,470 | 9,222 | 11,128 | 12,173 | → |
| Mack | Census-Designated Place | Hamilton | 10,815 | 11,982 | 11,585 | 11,088 | → |
| Macksburg | Village | Washington | 212 | 202 | 188 | 116 | → |
| Madeira | City | Hamilton | 9,106 | 8,880 | 8,743 | 9,490 | → |
| Madison | Village | Lake | 2,484 | 2,943 | 3,184 | 3,434 | → |
| Madison Place | Census-Designated Place | Hamilton | 651 | 613 | 528 | 572 | → |
| Magnetic Springs | Village | Union | 379 | 320 | 268 | 261 | → |
| Magnolia | Village | Stark / Carroll | 909 | 913 | 989 | 1,017 | → |
| Maineville | Village | Warren | 476 | 1,011 | 971 | 1,409 | → |
| Malinta | Village | Henry | 294 | 284 | 265 | 233 | → |
| Malta | Village | Morgan | 802 | 708 | 672 | 558 | → |
| Malvern | Village | Carroll | 1,226 | 1,238 | 1,202 | 1,104 | → |
| Manchester | Village | Adams | 2,324 | 2,083 | 2,027 | 1,843 | → |
| Mansfield | City | Richland | 50,900 | 51,900 | 47,811 | 47,530 | → |
| Mantua | Village | Portage | 1,131 | 1,048 | 1,052 | 1,004 | → |
| Maple Heights | City | Cuyahoga | 27,102 | 26,158 | 23,085 | 23,681 | → |
| Maple Ridge | Census-Designated Place | Mahoning | 1,133 | 855 | 761 | 667 | → |
| Maplewood Park | Census-Designated Place | Trumbull | 408 | 508 | 280 | 243 | → |
| Marathon | Census-Designated Place | Clermont | 99 | 35 | 101 | 155 | → |
| Marble Cliff | Village | Franklin | 633 | 642 | 569 | 638 | → |
| Marblehead | Village | Ottawa | 894 | 839 | 890 | 850 | → |
| Marengo | Village | Morrow | 330 | 294 | 342 | 280 | → |
| Maria Stein | Census-Designated Place | Mercer | 641 | 780 | 761 | 1,067 | → |
| Mariemont | Village | Hamilton | 3,077 | 3,401 | 3,402 | 3,521 | → |
| Marietta | City | Washington | 15,188 | 14,675 | 14,102 | 13,389 | → |
| Marion | City | Marion | 36,269 | 35,442 | 36,831 | 36,053 | → |
| Marlboro | Census-Designated Place | Stark | 73 | 87 | 84 | 247 | → |
| Marne | Census-Designated Place | Licking | 668 | 770 | 783 | 772 | → |
| Marseilles | Village | Wyandot | 122 | 132 | 112 | 97 | → |
| Marshallville | Village | Wayne | 768 | 838 | 767 | 790 | → |
| Martins Ferry | City | Belmont | 8,044 | 7,176 | 6,911 | 6,258 | → |
| Martinsburg | Village | Knox | 206 | 201 | 236 | 224 | → |
| Martinsville | Village | Clinton | 474 | 446 | 452 | 415 | → |
| Marysville | City | Union | 10,719 | 16,195 | 22,139 | 25,585 | → |
| Mason | City | Warren | 11,632 | 22,118 | 30,860 | 34,804 | → |
| Massieville | Census-Designated Place | Ross | 470 | 368 | 356 | 584 | → |
| Massillon | City | Stark | 31,235 | 31,285 | 32,297 | 32,039 | → |
| Masury | Census-Designated Place | Trumbull | 2,562 | 2,618 | 2,064 | 2,001 | → |
| Matamoras (New Matamoras) | Village | Washington | 1,037 | 936 | 896 | 704 | → |
| Maumee | City | Lucas | 15,584 | 15,077 | 14,282 | 13,889 | → |
| Mayfield | Village | Cuyahoga | 3,472 | 3,390 | 3,481 | 3,353 | → |
| Mayfield Heights | City | Cuyahoga | 19,844 | 19,467 | 19,154 | 20,346 | → |
| McArthur | Village | Vinton | 1,803 | 1,814 | 1,703 | 1,788 | → |
| McClure | Village | Henry | 840 | 768 | 727 | 696 | → |
| McComb | Village | Hancock | 1,539 | 1,682 | 1,649 | 1,565 | → |
| McConnelsville | Village | Morgan | 1,815 | 1,835 | 1,778 | 1,667 | → |
| McCutchenville | Census-Designated Place | Seneca / Wyandot | 346 | 351 | 400 | 371 | → |
| McDermott | Census-Designated Place | Scioto | 469 | 373 | 434 | 308 | → |
| McDonald | Village | Trumbull | 3,542 | 3,465 | 3,259 | 3,173 | → |
| McGuffey | Village | Hardin | 556 | 526 | 497 | 463 | → |
| McKinley Heights | Census-Designated Place | Trumbull | 1,249 | 1,158 | 1,060 | 950 | → |
| Mechanicsburg | Village | Champaign | 1,810 | 1,658 | 1,665 | 1,678 | → |
| Medina | City | Medina | 19,295 | 25,225 | 26,639 | 26,079 | → |
| Medway | Census-Designated Place | Clark | 369 | 293 | 312 | 627 | → |
| Melmore | Census-Designated Place | Seneca | 140 | 170 | 153 | 173 | → |
| Melrose | Village | Paulding | 307 | 327 | 275 | 230 | → |
| Mendon | Village | Mercer | 712 | 697 | 662 | 628 | → |
| Mentor | City | Lake | 47,460 | 50,094 | 47,161 | 47,442 | → |
| Mentor-on-the-Lake | City | Lake | 8,281 | 8,265 | 7,439 | 7,126 | → |
| Metamora | Village | Fulton | 547 | 578 | 629 | 565 | → |
| Meyers Lake | Village | Stark | 485 | 560 | 568 | 723 | → |
| Miami Heights | Census-Designated Place | Hamilton | 2,347 | 3,030 | 4,731 | 5,166 | → |
| Miamisburg | City | Montgomery | 18,049 | 19,315 | 20,164 | 19,927 | → |
| Miamitown | Census-Designated Place | Hamilton | 933 | 1,213 | 1,259 | 1,256 | → |
| Miamiville | Census-Designated Place | Clermont | 182 | 144 | 242 | 205 | → |
| Middle Point | Village | Van Wert | 640 | 594 | 573 | 570 | → |
| Middlebranch | Census-Designated Place | Stark | 1,363 | 1,718 | 1,807 | 2,117 | → |
| Middleburg Heights | City | Cuyahoga | 14,748 | 15,596 | 15,953 | 16,018 | → |
| Middlefield | Village | Geauga | 2,512 | 2,232 | 2,690 | 2,751 | → |
| Middleport | Village | Meigs | 2,780 | 2,528 | 2,528 | 2,210 | → |
| Middletown | City | Butler / Warren | 51,788 | 51,428 | 48,691 | 50,986 | → |
| Midland | Village | Clinton | 310 | 273 | 328 | 307 | → |
| Midvale | Village | Tuscarawas | 575 | 591 | 754 | 670 | → |
| Midway | Village | Madison | 291 | 277 | 322 | 270 | → |
| Mifflin | Village | Ashland | 129 | 127 | 138 | 156 | → |
| Milan | Village | Erie / Huron | 1,466 | 1,388 | 1,371 | 1,368 | → |
| Milford | City | Clermont / Hamilton | 5,815 | 6,280 | 6,667 | 6,581 | → |
| Milford Center | Village | Union | 644 | 602 | 797 | 806 | → |
| Millbury | Village | Wood | 1,107 | 1,164 | 1,200 | 1,193 | → |
| Milledgeville | Village | Fayette | 131 | 118 | 112 | 101 | → |
| Miller | Census-Designated Place | Lawrence | 176 | 309 | 418 | 455 | → |
| Miller City | Village | Putnam | 172 | 149 | 143 | 133 | → |
| Millersburg | Village | Holmes | 3,108 | 3,415 | 3,031 | 3,166 | → |
| Millersport | Village | Fairfield | 1,036 | 948 | 1,055 | 978 | → |
| Millfield | Census-Designated Place | Athens | 313 | 259 | 341 | 311 | → |
| Millville | Village | Butler | 824 | 742 | 708 | 637 | → |
| Milton Center | Village | Wood | 198 | 189 | 144 | 136 | → |
| Miltonsburg | Village | Monroe | 31 | 35 | 44 | 40 | → |
| Mineral City | Village | Tuscarawas | 767 | 850 | 727 | 636 | → |
| Mineral Ridge | Census-Designated Place | Trumbull / Mahoning | 3,928 | 3,900 | 4,179 | 3,951 | → |
| Minerva | Village | Stark / Carroll / Columbiana | 4,270 | 3,953 | 3,722 | 3,691 | → |
| Minerva Park | Village | Franklin | 1,350 | 1,289 | 1,272 | 2,012 | → |
| Minford | Census-Designated Place | Scioto | 477 | 512 | 693 | 641 | → |
| Mingo Junction | Village | Jefferson | 4,659 | 3,863 | 3,451 | 3,346 | → |
| Minster | Village | Auglaize | 2,691 | 2,792 | 2,807 | 3,093 | → |
| Mitiwanga | Census-Designated Place | Erie | 364 | 344 | 317 | 326 | → |
| Mogadore | Village | Summit / Portage | 3,981 | 3,903 | 3,856 | 3,815 | → |
| Monfort Heights | Census-Designated Place | Hamilton | 10,471 | 11,170 | 11,948 | 12,070 | → |
| Monroe | City | Butler / Warren | 6,019 | 7,187 | 12,449 | 15,414 | → |
| Monroeville | Village | Huron | 1,490 | 1,497 | 1,398 | 1,301 | → |
| Montezuma | Village | Mercer | 214 | 193 | 163 | 153 | → |
| Montgomery | City | Hamilton | 10,334 | 10,206 | 10,352 | 10,848 | → |
| Montpelier | Village | Williams | 4,296 | 4,326 | 4,070 | 3,947 | → |
| Montrose-Ghent | Census-Designated Place | Summit | 4,906 | 5,261 | 5,177 | 5,254 | → |
| Moraine | City | Montgomery | 6,274 | 6,828 | 6,401 | 6,433 | → |
| Moreland Hills | Village | Cuyahoga | 3,365 | 3,325 | 3,325 | 3,466 | → |
| Morgandale | Census-Designated Place | Trumbull | 1,477 | 1,435 | 1,224 | 1,139 | → |
| Morral | Village | Marion | 423 | 427 | 399 | 374 | → |
| Morristown | Village | Belmont | 350 | 297 | 301 | 246 | → |
| Morrow | Village | Warren | 1,177 | 1,251 | 1,178 | 2,053 | → |
| Moscow | Village | Clermont | 282 | 240 | 185 | 155 | → |
| Mount Blanchard | Village | Hancock | 496 | 497 | 489 | 467 | → |
| Mount Carmel | Census-Designated Place | Clermont | 4,916 | 4,308 | 4,741 | 4,828 | → |
| Mount Cory | Village | Hancock | 245 | 220 | 204 | 222 | → |
| Mount Eaton | Village | Wayne | 287 | 253 | 243 | 171 | → |
| Mount Gilead | Village | Morrow | 3,321 | 3,352 | 3,657 | 3,497 | → |
| Mount Healthy | City | Hamilton | 7,671 | 7,199 | 6,897 | 6,993 | → |
| Mount Healthy Heights | Census-Designated Place | Hamilton | 3,863 | 3,450 | 3,264 | 2,918 | → |
| Mount Hope | Census-Designated Place | Holmes | 140 | 173 | 238 | 197 | → |
| Mount Orab | Village | Brown | 2,316 | 2,945 | 3,685 | 4,353 | → |
| Mount Pleasant | Village | Jefferson | 637 | 550 | 474 | 392 | → |
| Mount Repose | Census-Designated Place | Clermont | 3,584 | 4,102 | 4,672 | 4,648 | → |
| Mount Sterling | Village | Madison | 1,660 | 1,966 | 1,733 | 1,944 | → |
| Mount Vernon | City | Knox | 14,936 | 15,610 | 16,974 | 17,061 | → |
| Mount Victory | Village | Hardin | 540 | 600 | 623 | 606 | → |
| Mowrystown | Village | Highland | 462 | 371 | 362 | 386 | → |
| Mulberry | Census-Designated Place | Clermont | 2,856 | 3,139 | 3,323 | 3,459 | → |
| Munroe Falls | City | Summit | 5,313 | 5,177 | 5,056 | 5,046 | → |
| Murray City | Village | Hocking | 499 | 425 | 453 | 347 | → |
| Mutual | Village | Champaign | 120 | 146 | 107 | 126 | → |
| Nankin | Census-Designated Place | Ashland | 425 | 413 | 430 | 435 | → |
| Napoleon | City | Henry | 9,052 | 9,320 | 8,773 | 8,864 | → |
| Nashport | Census-Designated Place | Muskingum | 456 | 307 | 280 | 449 | → |
| Nashville | Village | Holmes | 166 | 198 | 170 | 182 | → |
| Navarre | Village | Stark | 2,434 | 1,947 | 1,883 | 1,867 | → |
| Neapolis | Census-Designated Place | Lucas | 533 | 481 | 423 | 497 | → |
| Neffs | Census-Designated Place | Belmont | 1,213 | 1,138 | 993 | 878 | → |
| Negley | Census-Designated Place | Columbiana | 299 | 282 | 281 | 274 | → |
| Nellie | Village | Coshocton | 90 | 134 | 134 | 123 | → |
| Nelsonville | City | Athens | 4,841 | 5,024 | 5,388 | 4,604 | → |
| Nettle Lake | Census-Designated Place | Williams | 151 | 199 | 143 | 210 | → |
| Nevada | Village | Wyandot | 860 | 807 | 760 | 705 | → |
| Neville | Village | Clermont | 221 | 122 | 102 | 87 | → |
| New Albany | City | Franklin / Licking | 2,987 | 4,874 | 8,595 | 11,050 | → |
| New Alexandria | Village | Jefferson | 366 | 259 | 272 | 232 | → |
| New Athens | Village | Harrison | 375 | 343 | 324 | 220 | → |
| New Baltimore | Census-Designated Place | Hamilton | 653 | 562 | 661 | 1,596 | → |
| New Bavaria | Village | Henry | 95 | 87 | 99 | 87 | → |
| New Bloomington | Village | Marion | 323 | 558 | 520 | 412 | → |
| New Boston | Village | Scioto | 2,715 | 2,357 | 2,330 | 2,305 | → |
| New Bremen | Village | Auglaize | 2,671 | 2,899 | 2,995 | 3,040 | → |
| New Burlington | Census-Designated Place | Hamilton | 5,776 | 5,604 | 5,069 | 5,049 | → |
| New California | Census-Designated Place | Union | 499 | 579 | 1,411 | 2,225 | → |
| New Carlisle | City | Clark | 6,043 | 5,853 | 5,782 | 5,562 | → |
| New Concord | Village | Muskingum | 2,154 | 2,650 | 2,491 | 2,359 | → |
| New Franklin | City | Summit | 14,702 | 14,531 | 14,209 | 13,880 | → |
| New Hampshire | Census-Designated Place | Auglaize | 137 | 132 | 174 | 150 | → |
| New Haven | Census-Designated Place | Hamilton | 631 | 496 | 583 | 572 | → |
| New Haven | Census-Designated Place | Huron | 384 | 482 | 399 | 356 | → |
| New Holland | Village | Pickaway / Fayette | 841 | 797 | 801 | 803 | → |
| New Knoxville | Village | Auglaize | 851 | 897 | 879 | 938 | → |
| New Lebanon | Village | Montgomery | 4,281 | 4,216 | 3,993 | 3,804 | → |
| New Lexington | Village | Perry | 5,156 | 4,406 | 4,717 | 4,430 | → |
| New London | Village | Huron | 2,654 | 2,698 | 2,461 | 2,419 | → |
| New Madison | Village | Darke | 934 | 813 | 893 | 842 | → |
| New Marshfield | Census-Designated Place | Athens | 225 | 228 | 326 | 316 | → |
| New Miami | Village | Butler | 2,543 | 2,374 | 2,252 | 2,211 | → |
| New Middletown | Village | Mahoning | 1,912 | 1,702 | 1,641 | 1,505 | → |
| New Paris | Village | Preble | 1,838 | 1,670 | 1,629 | 1,492 | → |
| New Philadelphia | City | Tuscarawas | 16,647 | 17,047 | 17,326 | 17,683 | → |
| New Pittsburg | Census-Designated Place | Wayne | 172 | 190 | 388 | 303 | → |
| New Richmond | Village | Clermont | 2,579 | 2,343 | 2,591 | 2,725 | → |
| New Riegel | Village | Seneca | 298 | 230 | 249 | 285 | → |
| New Springfield | Census-Designated Place | Mahoning | 291 | 330 | 250 | 579 | → |
| New Straitsville | Village | Perry | 866 | 766 | 727 | 652 | → |
| New Vienna | Village | Clinton | 934 | 1,331 | 1,194 | 1,113 | → |
| New Washington | Village | Crawford | 1,041 | 978 | 968 | 869 | → |
| New Waterford | Village | Columbiana | 1,276 | 1,358 | 1,233 | 1,194 | → |
| New Weston | Village | Darke | 149 | 135 | 136 | 125 | → |
| Newark | City | Licking | 44,877 | 46,227 | 47,551 | 49,970 | → |
| Newburgh Heights | Village | Cuyahoga | 2,446 | 2,373 | 2,144 | 1,863 | → |
| Newcomerstown | Village | Tuscarawas | 4,114 | 4,059 | 3,812 | 3,714 | → |
| Newport | Census-Designated Place | Shelby | 99 | 153 | 198 | 169 | → |
| Newport | Census-Designated Place | Washington | 1,074 | 1,081 | 1,003 | 895 | → |
| Newton Falls | Village | Trumbull | 4,950 | 4,929 | 4,754 | 4,577 | → |
| Newtown | Village | Hamilton | 1,582 | 2,506 | 2,652 | 2,704 | → |
| Ney | Village | Defiance | 343 | 371 | 354 | 301 | → |
| Niles | City | Trumbull | 21,207 | 20,897 | 19,201 | 18,457 | → |
| North Baltimore | Village | Wood | 3,154 | 3,362 | 3,426 | 3,371 | → |
| North Bend | Village | Hamilton | 512 | 614 | 859 | 835 | → |
| North Canton | City | Stark | 15,373 | 16,635 | 17,511 | 17,844 | → |
| North College Hill | City | Hamilton | 10,967 | 10,169 | 9,414 | 9,663 | → |
| North Fairfield | Village | Huron | 551 | 598 | 560 | 464 | → |
| North Hampton | Village | Clark | 411 | 410 | 486 | 457 | → |
| North Industry | Census-Designated Place | Stark | 1,364 | 1,802 | 1,356 | 1,528 | → |
| North Kingsville | Village | Ashtabula | 2,407 | 2,679 | 2,917 | 2,750 | → |
| North Lawrence | Census-Designated Place | Stark | 318 | 293 | 268 | 212 | → |
| North Lewisburg | Village | Champaign | 1,159 | 1,628 | 1,498 | 1,637 | → |
| North Lima | Census-Designated Place | Mahoning | 1,118 | 1,207 | 1,311 | 1,369 | → |
| North Madison | Census-Designated Place | Lake | 7,827 | 8,451 | 8,547 | 8,188 | → |
| North Olmsted | City | Cuyahoga | 34,202 | 34,098 | 32,753 | 32,439 | → |
| North Perry | Village | Lake | 831 | 824 | 893 | 915 | → |
| North Randall | Village | Cuyahoga | 976 | 907 | 1,027 | 955 | → |
| North Ridgeville | City | Lorain | 21,575 | 22,270 | 29,476 | 35,281 | → |
| North Robinson | Village | Crawford | 217 | 205 | 210 | 219 | → |
| North Royalton | City | Cuyahoga | 23,180 | 28,631 | 30,470 | 31,328 | → |
| North Star | Village | Darke | 246 | 224 | 225 | 230 | → |
| North Zanesville | Census-Designated Place | Muskingum | 2,925 | 3,013 | 2,816 | 3,116 | → |
| Northbrook | Census-Designated Place | Hamilton | 11,471 | 11,076 | 10,668 | 10,912 | → |
| Northfield | Village | Summit | 3,628 | 3,827 | 3,670 | 3,539 | → |
| Northgate | Census-Designated Place | Hamilton | 7,864 | 8,016 | 7,377 | 7,277 | → |
| Northridge | Census-Designated Place | Clark | 5,939 | 6,853 | 7,572 | 7,518 | → |
| Northwood | City | Wood | 5,542 | 5,486 | 5,219 | 5,163 | → |
| Norton | City | Summit / Wayne | 11,473 | 11,467 | 12,107 | 11,669 | → |
| Norwalk | City | Huron | 14,922 | 16,455 | 17,103 | 17,058 | → |
| Norwich | Village | Muskingum | 125 | 114 | 101 | 98 | → |
| Norwood | City | Hamilton | 23,613 | 21,621 | 19,208 | 19,048 | → |
| Oak Harbor | Village | Ottawa | 2,733 | 2,798 | 2,751 | 2,824 | → |
| Oak Hill | Village | Jackson | 1,705 | 1,664 | 1,566 | 1,412 | → |
| Oakwood | Village | Cuyahoga | 3,382 | 3,666 | 3,659 | 3,573 | → |
| Oakwood | City | Montgomery | 9,013 | 9,212 | 9,204 | 9,573 | → |
| Oakwood | Village | Paulding | 711 | 600 | 613 | 548 | → |
| Oberlin | City | Lorain | 8,311 | 8,255 | 8,289 | 8,560 | → |
| Obetz | City | Franklin | 3,770 | 4,884 | 4,540 | 5,482 | → |
| Oceola | Census-Designated Place | Crawford | 116 | 130 | 190 | 156 | → |
| Octa | Village | Fayette | 83 | 76 | 59 | 56 | → |
| Ohio City | Village | Van Wert | 905 | 816 | 697 | 653 | → |
| Old Fort | Census-Designated Place | Seneca | 146 | 132 | 186 | 143 | → |
| Old Washington | Village | Guernsey | 282 | 278 | 277 | 224 | → |
| Olde West Chester | Census-Designated Place | Butler | 213 | 232 | 240 | 201 | → |
| Olmsted Falls | City | Cuyahoga | 6,739 | 7,804 | 8,976 | 8,578 | → |
| Ontario | City | Richland | 4,126 | 5,282 | 6,244 | 6,662 | → |
| Orange | Village | Cuyahoga | 2,819 | 3,244 | 3,299 | 3,422 | → |
| Orangeville | Village | Trumbull | 257 | 211 | 189 | 174 | → |
| Oregon | City | Lucas | 18,343 | 19,428 | 20,302 | 19,949 | → |
| Orient | Census-Designated Place | Pickaway | 277 | 278 | 270 | 246 | → |
| Orrville | City | Wayne | 7,968 | 8,572 | 8,356 | 8,458 | → |
| Orwell | Village | Ashtabula | 1,143 | 1,251 | 1,656 | 1,516 | → |
| Osgood | Village | Darke | 293 | 261 | 302 | 306 | → |
| Ostrander | Village | Delaware | 431 | 442 | 640 | 1,093 | → |
| Ottawa | Village | Putnam | 4,175 | 4,522 | 4,457 | 4,468 | → |
| Ottawa Hills | Village | Lucas | 4,563 | 4,554 | 4,470 | 4,792 | → |
| Ottoville | Village | Putnam | 884 | 926 | 983 | 965 | → |
| Otway | Village | Scioto | 50 | 41 | 87 | 93 | → |
| Owensville | Village | Clermont | 782 | 789 | 795 | 799 | → |
| Oxford | City | Butler | 20,840 | 21,928 | 21,388 | 23,045 | → |
| Painesville | City | Lake | 15,622 | 17,529 | 19,528 | 20,298 | → |
| Palestine | Village | Darke | 189 | 174 | 198 | 183 | → |
| Pancoastburg | Census-Designated Place | Fayette | 118 | 70 | 87 | 68 | → |
| Pandora | Village | Putnam | 1,006 | 1,185 | 1,145 | 1,200 | → |
| Park Layne | Census-Designated Place | Clark | 4,795 | 4,519 | 4,343 | 4,248 | → |
| Parkman | Census-Designated Place | Geauga | 220 | 212 | 196 | 282 | → |
| Parma | City | Cuyahoga | 87,724 | 85,661 | 81,618 | 81,121 | → |
| Parma Heights | City | Cuyahoga | 21,573 | 21,655 | 20,717 | 20,850 | → |
| Parral | Village | Tuscarawas | 253 | 244 | 218 | 204 | → |
| Pataskala | City | Licking | 7,603 | 10,125 | 14,923 | 17,885 | → |
| Patterson | Village | Hardin | 147 | 138 | 138 | 123 | → |
| Paulding | Village | Paulding | 3,379 | 3,596 | 3,604 | 3,547 | → |
| Payne | Village | Paulding | 1,340 | 1,225 | 1,194 | 1,187 | → |
| Peebles | Village | Adams | 1,824 | 1,765 | 1,794 | 1,772 | → |
| Pekin | Census-Designated Place | Carroll | 435 | 392 | 400 | 314 | → |
| Pemberville | Village | Wood | 1,311 | 1,385 | 1,373 | 1,327 | → |
| Peninsula | Village | Summit | 565 | 545 | 553 | 526 | → |
| Pepper Pike | City | Cuyahoga | 6,119 | 5,982 | 5,998 | 6,794 | → |
| Perry | Village | Lake | 981 | 1,214 | 1,635 | 1,604 | → |
| Perry Heights | Census-Designated Place | Stark | 9,055 | 8,900 | 8,441 | 8,391 | → |
| Perrysburg | City | Wood | 14,789 | 18,862 | 20,751 | 25,034 | → |
| Perrysville | Village | Ashland | 864 | 814 | 726 | 732 | → |
| Petersburg | Census-Designated Place | Mahoning | 389 | 399 | 321 | 405 | → |
| Pettisville | Census-Designated Place | Fulton | 338 | 534 | 498 | 469 | → |
| Pheasant Run | Census-Designated Place | Lorain | 843 | 1,379 | 1,397 | 1,362 | → |
| Phillipsburg | Village | Montgomery | 661 | 631 | 556 | 500 | → |
| Philo | Village | Muskingum | 811 | 764 | 732 | 721 | → |
| Pickerington | City | Fairfield / Franklin | 5,889 | 10,037 | 18,278 | 23,079 | → |
| Pigeon Creek | Census-Designated Place | Summit | 1,008 | 945 | 882 | 886 | → |
| Piketon | Village | Pike | 1,673 | 1,922 | 2,127 | 2,113 | → |
| Pioneer | Village | Williams | 1,286 | 1,463 | 1,379 | 1,430 | → |
| Piqua | City | Miami | 20,953 | 20,749 | 20,506 | 20,378 | → |
| Pitsburg | Village | Darke | 420 | 360 | 386 | 382 | → |
| Plain City | Village | Madison / Union | 2,299 | 2,849 | 4,215 | 4,110 | → |
| Plainfield | Village | Coshocton | 165 | 165 | 144 | 137 | → |
| Plainville | Census-Designated Place | Hamilton | 99 | 120 | 87 | 120 | → |
| Pleasant City | Village | Guernsey | 418 | 436 | 443 | 396 | → |
| Pleasant Grove | Census-Designated Place | Muskingum | 2,001 | 2,016 | 1,742 | 1,726 | → |
| Pleasant Hill | Village | Miami | 1,073 | 1,135 | 1,201 | 1,231 | → |
| Pleasant Hills | Census-Designated Place | Hamilton | 715 | 609 | 606 | 950 | → |
| Pleasant Plain | Village | Warren | 140 | 161 | 149 | 129 | → |
| Pleasant Run | Census-Designated Place | Hamilton | 4,964 | 5,267 | 4,953 | 4,861 | → |
| Pleasant Run Farm | Census-Designated Place | Hamilton | 4,545 | 4,731 | 4,654 | 4,779 | → |
| Pleasantville | Village | Fairfield | 934 | 881 | 956 | 942 | → |
| Plumwood | Census-Designated Place | Madison | 190 | 141 | 319 | 257 | → |
| Plymouth | Village | Huron / Richland | 2,009 | 1,921 | 1,858 | 1,714 | → |
| Poland | Village | Mahoning | 3,515 | 3,153 | 2,516 | 2,459 | → |
| Polk | Village | Ashland | 352 | 361 | 336 | 309 | → |
| Pomeroy | Village | Meigs | 2,426 | 1,961 | 1,852 | 1,570 | → |
| Port Clinton | City | Ottawa | 7,083 | 6,382 | 6,349 | 6,025 | → |
| Port Jefferson | Village | Shelby | 365 | 347 | 369 | 309 | → |
| Port Washington | Village | Tuscarawas | 516 | 557 | 569 | 555 | → |
| Port William | Village | Clinton | 243 | 258 | 254 | 223 | → |
| Portage | Village | Wood | 469 | 411 | 438 | 401 | → |
| Portage Lakes | Census-Designated Place | Summit | 7,056 | 6,893 | 6,968 | 6,407 | → |
| Portsmouth | City | Scioto | 23,557 | 20,922 | 20,156 | 18,253 | → |
| Potsdam | Village | Miami | 251 | 249 | 288 | 231 | → |
| Pottery Addition | Census-Designated Place | Jefferson | 238 | 244 | 293 | 258 | → |
| Powell | City | Delaware | 2,390 | 6,674 | 11,497 | 14,249 | → |
| Powhatan Point | Village | Belmont | 1,845 | 1,732 | 1,590 | 1,456 | → |
| Proctorville | Village | Lawrence | 2,423 | 620 | 574 | 524 | → |
| Prospect | Village | Marion | 1,126 | 1,190 | 1,109 | 1,072 | → |
| Pulaski | Census-Designated Place | Williams | 163 | 109 | 132 | 121 | → |
| Put-in-Bay | Village | Ottawa | 174 | 129 | 145 | 155 | → |
| Quaker City | Village | Guernsey | 572 | 565 | 502 | 380 | → |
| Quincy | Village | Logan | 697 | 743 | 706 | 541 | → |
| Racine | Village | Meigs | 762 | 761 | 693 | 682 | → |
| Radnor | Census-Designated Place | Delaware | 137 | 136 | 201 | 180 | → |
| Rarden | Village | Scioto | 203 | 182 | 159 | 146 | → |
| Ravenna | City | Portage | 12,026 | 11,941 | 11,730 | 11,328 | → |
| Rawson | Village | Hancock | 475 | 479 | 572 | 570 | → |
| Rayland | Village | Jefferson | 482 | 422 | 415 | 393 | → |
| Raymond | Census-Designated Place | Union | 221 | 317 | 257 | 280 | → |
| Reading | City | Hamilton | 12,007 | 11,255 | 10,360 | 10,603 | → |
| Reedurban | Census-Designated Place | Stark | 6,226 | 6,056 | 5,927 | 5,889 | → |
| Reminderville | City | Summit | 2,163 | 2,477 | 3,404 | 5,404 | → |
| Remington | Census-Designated Place | Hamilton | 144 | 474 | 328 | 368 | → |
| Rendville | Village | Perry | 32 | 34 | 36 | 28 | → |
| Reno | Census-Designated Place | Washington | 1,156 | 1,187 | 1,293 | 1,129 | → |
| Reno Beach | Census-Designated Place | Lucas | 931 | 848 | 619 | 713 | → |
| Republic | Village | Seneca | 597 | 618 | 549 | 553 | → |
| Reynoldsburg | City | Franklin / Licking / Fairfield | 26,264 | 32,046 | 35,929 | 41,083 | → |
| Richfield | Village | Summit | 3,483 | 3,649 | 3,670 | 3,725 | → |
| Richmond | Village | Jefferson | 721 | 507 | 481 | 412 | → |
| Richmond Dale | Census-Designated Place | Ross | 454 | 397 | 377 | 386 | → |
| Richmond Heights | City | Cuyahoga | 9,641 | 10,958 | 10,557 | 10,795 | → |
| Richville | Census-Designated Place | Stark | 3,174 | 3,337 | 3,324 | 3,209 | → |
| Richwood | Village | Union | 2,204 | 2,154 | 2,243 | 2,222 | → |
| Ridgeville Corners | Census-Designated Place | Henry | 123 | 123 | 435 | 416 | → |
| Ridgeway | Village | Logan / Hardin | 372 | 359 | 338 | 317 | → |
| Ridgewood | Census-Designated Place | Hamilton | 418 | 496 | 515 | 506 | → |
| Rio Grande | Village | Gallia | 1,005 | 924 | 834 | 720 | → |
| Ripley | Village | Brown | 1,914 | 1,885 | 1,749 | 1,577 | → |
| Risingsun | Village | Wood | 661 | 617 | 610 | 544 | → |
| Rittman | City | Wayne / Medina | 6,160 | 6,344 | 6,464 | 6,139 | → |
| Riverlea | Village | Franklin | 520 | 497 | 547 | 597 | → |
| Riverside | City | Montgomery | 29,511 | 27,127 | 25,175 | 24,471 | → |
| Roachester | Census-Designated Place | Warren | 795 | 724 | 494 | 579 | → |
| Roaming Shores | Village | Ashtabula | 757 | 1,254 | 1,508 | 1,582 | → |
| Robertsville | Census-Designated Place | Stark | 296 | 308 | 331 | 293 | → |
| Rochester | Village | Lorain | 182 | 208 | 182 | 160 | → |
| Rock Creek | Village | Ashtabula | 565 | 595 | 533 | 675 | → |
| Rockbridge | Census-Designated Place | Hocking | 175 | 206 | 182 | 160 | → |
| Rockford | Village | Mercer | 1,146 | 1,119 | 1,121 | 1,046 | → |
| Rocky Fork Point | Census-Designated Place | Highland | 288 | 476 | 639 | 742 | → |
| Rocky Ridge | Village | Ottawa | 425 | 395 | 414 | 311 | → |
| Rocky River | City | Cuyahoga | 20,435 | 20,722 | 20,217 | 21,751 | → |
| Rogers | Village | Columbiana | 253 | 255 | 239 | 193 | → |
| Rome (Stout) | Village | Adams | 99 | 136 | 98 | 82 | → |
| Rose Farm | Census-Designated Place | Morgan / Perry | 117 | 108 | 133 | 111 | → |
| Roseland | Census-Designated Place | Richland | 1,900 | 1,828 | 1,539 | 1,495 | → |
| Rosemount | Census-Designated Place | Scioto | 2,277 | 2,043 | 2,112 | 2,117 | → |
| Roseville | Village | Perry / Muskingum | 1,858 | 1,838 | 1,858 | 1,749 | → |
| Rosewood | Census-Designated Place | Champaign | 222 | 196 | 257 | 224 | → |
| Ross | Census-Designated Place | Butler | 3,050 | 2,298 | 3,417 | 3,478 | → |
| Rossburg | Village | Darke | 257 | 219 | 194 | 161 | → |
| Rossford | City | Wood | 6,086 | 6,379 | 6,350 | 6,302 | → |
| Rossmoyne | Census-Designated Place | Hamilton | 2,081 | 2,019 | 1,918 | 1,788 | → |
| Roswell | Village | Tuscarawas | 285 | 279 | 217 | 217 | → |
| Rudolph | Census-Designated Place | Wood | 438 | 447 | 458 | 415 | → |
| Rushsylvania | Village | Logan | 571 | 538 | 516 | 490 | → |
| Rushville | Village | Fairfield | 285 | 277 | 307 | 305 | → |
| Russells Point | Village | Logan | 1,526 | 1,626 | 1,391 | 1,325 | → |
| Russellville | Village | Brown | 473 | 462 | 554 | 543 | → |
| Russia | Village | Shelby | 452 | 551 | 643 | 722 | → |
| Rutland | Village | Meigs | 494 | 432 | 436 | 428 | → |
| Sabina | Village | Clinton | 2,564 | 2,633 | 2,603 | 2,496 | → |
| Salem | City | Columbiana / Mahoning | 12,626 | 12,533 | 12,301 | 11,910 | → |
| Salem Heights | Census-Designated Place | Columbiana | 386 | 246 | 246 | 336 | → |
| Salem Heights | Census-Designated Place | Hamilton | 3,785 | 3,949 | 3,839 | 3,862 | → |
| Salesville | Census-Designated Place | Guernsey | 115 | 149 | 129 | 123 | → |
| Salineville | Village | Columbiana | 1,430 | 1,409 | 1,316 | 1,203 | → |
| Sandusky | City | Erie | 29,519 | 27,909 | 25,909 | 25,147 | → |
| Sandyville | Census-Designated Place | Tuscarawas | 367 | 378 | 368 | 350 | → |
| Sarahsville | Village | Noble | 160 | 190 | 178 | 150 | → |
| Sardinia | Village | Brown | 1,000 | 1,139 | 1,171 | 1,087 | → |
| Sardis | Census-Designated Place | Monroe | 493 | 591 | 559 | 522 | → |
| Savannah | Village | Ashland | 363 | 401 | 414 | 325 | → |
| Sawyerwood | Census-Designated Place | Summit | 1,572 | 1,801 | 1,540 | 1,382 | → |
| Saybrook-on-the-Lake | Census-Designated Place | Ashtabula | 942 | 943 | 962 | 1,050 | → |
| Scio | Village | Harrison | 851 | 800 | 763 | 671 | → |
| Sciotodale | Census-Designated Place | Scioto | 1,128 | 982 | 1,081 | 1,049 | → |
| Scott | Village | Van Wert / Paulding | 339 | 320 | 286 | 240 | → |
| Seaman | Village | Adams | 947 | 1,022 | 926 | 973 | → |
| Sebring | Village | Mahoning | 4,865 | 4,976 | 4,408 | 4,186 | → |
| Senecaville | Village | Guernsey | 433 | 428 | 463 | 418 | → |
| Seven Hills | City | Cuyahoga | 12,296 | 12,140 | 11,790 | 11,728 | → |
| Seven Mile | Village | Butler | 1,052 | 729 | 748 | 721 | → |
| Seville | Village | Medina | 1,812 | 2,320 | 2,300 | 2,332 | → |
| Shadyside | Village | Belmont | 3,814 | 3,831 | 3,739 | 3,450 | → |
| Shaker Heights | City | Cuyahoga | 30,941 | 29,362 | 28,395 | 29,448 | → |
| Sharon Center | Census-Designated Place | Medina | 742 | 764 | 727 | 918 | → |
| Sharonville | City | Hamilton / Butler | 13,244 | 13,704 | 13,423 | 14,114 | → |
| Shawnee | Census-Designated Place | Hamilton | 691 | 732 | 724 | 747 | → |
| Shawnee | Village | Perry | 740 | 571 | 655 | 506 | → |
| Shawnee Hills | Village | Delaware | 429 | 426 | 677 | 837 | → |
| Shawnee Hills | Census-Designated Place | Greene | 2,199 | 2,355 | 2,171 | 2,230 | → |
| Sheffield | Village | Lorain | 1,950 | 2,807 | 3,983 | 4,135 | → |
| Sheffield Lake | City | Lorain | 9,825 | 9,343 | 9,185 | 8,956 | → |
| Shelby | City | Richland | 9,752 | 9,811 | 9,334 | 9,283 | → |
| Sherrodsville | Village | Carroll | 291 | 307 | 301 | 220 | → |
| Sherwood | Village | Defiance | 827 | 803 | 827 | 804 | → |
| Sherwood | Census-Designated Place | Hamilton | 3,709 | 3,907 | 3,719 | 3,633 | → |
| Shiloh | Census-Designated Place | Montgomery | 11,607 | 11,272 | 10,738 | 10,952 | → |
| Shiloh | Village | Richland | 782 | 726 | 638 | 616 | → |
| Shreve | Village | Wayne | 1,584 | 1,569 | 1,522 | 1,495 | → |
| Sidney | City | Shelby | 19,133 | 20,441 | 21,219 | 20,592 | → |
| Silver Lake | Village | Summit | 2,721 | 2,745 | 2,522 | 2,517 | → |
| Silverton | Village | Hamilton | 5,809 | 5,208 | 4,801 | 4,913 | → |
| Sinking Spring | Village | Highland | 192 | 161 | 134 | 121 | → |
| Sixteen Mile Stand | Census-Designated Place | Hamilton | 1,748 | 2,895 | 2,928 | 3,091 | → |
| Skyline Acres | Census-Designated Place | Hamilton | 2,034 | 1,575 | 1,500 | 1,446 | → |
| Smithville | Village | Wayne | 1,354 | 1,324 | 1,250 | 1,342 | → |
| Solon | City | Cuyahoga | 18,561 | 21,845 | 23,362 | 24,260 | → |
| Somerset | Village | Perry | 1,389 | 1,547 | 1,492 | 1,482 | → |
| Somerville | Census-Designated Place | Butler | 269 | 294 | 281 | 258 | → |
| South Amherst | Village | Lorain | 1,876 | 1,845 | 1,703 | 1,575 | → |
| South Bloomfield | Village | Pickaway | 994 | 1,120 | 1,786 | 2,147 | → |
| South Canal | Census-Designated Place | Trumbull | 1,319 | 1,346 | 1,100 | 1,101 | → |
| South Charleston | Village | Clark | 1,634 | 1,874 | 1,676 | 1,710 | → |
| South Euclid | City | Cuyahoga | 23,836 | 23,194 | 22,297 | 21,891 | → |
| South Lebanon | Village | Warren | 3,166 | 2,725 | 4,534 | 6,432 | → |
| South Mount Vernon | Census-Designated Place | Knox | 937 | 684 | 605 | 714 | → |
| South Point | Village | Lawrence | 3,850 | 3,842 | 3,956 | 3,835 | → |
| South Russell | Village | Geauga | 3,412 | 3,994 | 3,817 | 3,978 | → |
| South Salem | Village | Ross | 227 | 221 | 204 | 212 | → |
| South Solon | Village | Madison | 384 | 404 | 355 | 327 | → |
| South Vienna | Village | Clark | 446 | 464 | 416 | 411 | → |
| South Webster | Village | Scioto | 786 | 791 | 870 | 669 | → |
| South Zanesville | Village | Muskingum | 2,007 | 1,954 | 1,986 | 1,895 | → |
| Sparta | Village | Morrow | 207 | 190 | 161 | 122 | → |
| Spencer | Village | Medina | 742 | 751 | 753 | 684 | → |
| Spencerville | Village | Allen | 2,292 | 2,231 | 2,225 | 2,205 | → |
| Spring Valley | Village | Greene | 507 | 502 | 476 | 413 | → |
| Springboro | City | Warren / Montgomery | 7,243 | 12,326 | 17,366 | 19,076 | → |
| Springdale | City | Hamilton | 10,536 | 10,633 | 11,224 | 11,004 | → |
| Springfield | City | Clark | 71,006 | 66,008 | 60,564 | 58,644 | → |
| St. Bernard | Village | Hamilton | 5,215 | 4,926 | 4,377 | 4,036 | → |
| St. Clairsville | City | Belmont | 5,239 | 5,203 | 5,199 | 5,090 | → |
| St. Henry | Village | Mercer | 1,958 | 2,282 | 2,442 | 2,601 | → |
| St. Johns | Census-Designated Place | Auglaize | ... | ... | 185 | 181 | → |
| St. Louisville | Village | Licking | 365 | 355 | 369 | 351 | → |
| St. Martin | Census-Designated Place | Brown | 203 | 196 | 209 | 200 | → |
| St. Marys | City | Auglaize | 8,630 | 8,326 | 8,317 | 8,402 | → |
| St. Paris | Village | Champaign | 1,911 | 2,045 | 2,074 | 1,882 | → |
| Stafford | Village | Monroe | 85 | 88 | 81 | 69 | → |
| Sterling | Census-Designated Place | Wayne | 527 | 481 | 457 | 432 | → |
| Steubenville | City | Jefferson | 22,347 | 19,008 | 18,671 | 18,169 | → |
| Stewart | Census-Designated Place | Athens | 129 | 209 | 247 | 221 | → |
| Stockdale | Census-Designated Place | Pike | 91 | 148 | 135 | 111 | → |
| Stockport | Village | Morgan | 476 | 539 | 513 | 484 | → |
| Stone Creek | Village | Tuscarawas | 181 | 192 | 177 | 149 | → |
| Stony Prairie | Census-Designated Place | Sandusky | 1,308 | 1,253 | 1,284 | 1,218 | → |
| Stony Ridge | Census-Designated Place | Wood | 421 | 408 | 411 | 434 | → |
| Stoutsville | Village | Fairfield | 462 | 457 | 565 | 579 | → |
| Stow | City | Summit | 27,966 | 32,415 | 34,832 | 34,490 | → |
| Strasburg | Village | Tuscarawas | 1,993 | 2,302 | 2,609 | 2,757 | → |
| Stratton | Village | Jefferson | 278 | 279 | 294 | 265 | → |
| Streetsboro | City | Portage | 9,934 | 12,354 | 15,995 | 17,262 | → |
| Strongsville | City | Cuyahoga | 35,297 | 43,858 | 44,750 | 46,487 | → |
| Struthers | City | Mahoning | 12,339 | 11,712 | 10,715 | 10,035 | → |
| Stryker | Village | Williams | 1,468 | 1,386 | 1,346 | 1,260 | → |
| Suffield | Census-Designated Place | Portage | 964 | 994 | 1,030 | 949 | → |
| Sugar Bush Knolls | Village | Portage | 209 | 193 | 195 | 216 | → |
| Sugar Grove | Village | Fairfield | 471 | 448 | 426 | 409 | → |
| Sugarcreek | Village | Tuscarawas | 2,234 | 2,189 | 2,218 | 2,382 | → |
| Sullivan | Census-Designated Place | Ashland | 513 | 567 | 623 | 603 | → |
| Sulphur Springs | Census-Designated Place | Crawford | 173 | 165 | 194 | 197 | → |
| Summerfield | Village | Noble | 286 | 302 | 254 | 243 | → |
| Summerside | Census-Designated Place | Clermont | 4,119 | 5,113 | 5,083 | 4,941 | → |
| Summitville | Village | Columbiana | 140 | 107 | 132 | 109 | → |
| Sunbury | City | Delaware | 2,273 | 2,900 | 4,405 | 6,618 | → |
| Swanton | Village | Fulton / Lucas | 3,534 | 3,460 | 3,842 | 3,894 | → |
| Sycamore | Village | Wyandot | 919 | 893 | 856 | 795 | → |
| Sylvania | City | Lucas | 17,451 | 19,190 | 19,089 | 19,004 | → |
| Syracuse | Village | Meigs | 829 | 881 | 823 | 783 | → |
| Tallmadge | City | Summit / Portage | 14,836 | 16,566 | 17,621 | 18,431 | → |
| Tarlton | Village | Pickaway | 314 | 304 | 282 | 255 | → |
| Taylor Creek | Census-Designated Place | Hamilton | 2,376 | 2,354 | 3,062 | 4,056 | → |
| Tedrow | Census-Designated Place | Fulton | 156 | 156 | 173 | 168 | → |
| Terrace Park | Village | Hamilton | 2,109 | 2,280 | 2,253 | 2,354 | → |
| The Plains | Census-Designated Place | Athens | 2,644 | 2,931 | 3,080 | 3,140 | → |
| The Village of Indian Hill | City | Hamilton | 5,402 | 6,018 | 5,698 | 6,085 | → |
| Thornport | Census-Designated Place | Perry | 861 | 846 | 1,004 | 1,120 | → |
| Thornville | Village | Perry | 714 | 673 | 993 | 1,082 | → |
| Thurston | Village | Fairfield | 548 | 555 | 604 | 607 | → |
| Tiffin | City | Seneca | 18,912 | 18,081 | 17,903 | 18,034 | → |
| Tiltonsville | Village | Jefferson | 1,520 | 1,336 | 1,378 | 1,258 | → |
| Timberlake | Village | Lake | 856 | 728 | 675 | 625 | → |
| Tipp City | City | Miami | 7,144 | 9,742 | 9,672 | 10,284 | → |
| Tippecanoe | Census-Designated Place | Harrison | 88 | 122 | 121 | 83 | → |
| Tiro | Village | Crawford | 246 | 281 | 280 | 221 | → |
| Toledo | City | Lucas | 332,983 | 313,373 | 287,357 | 270,877 | → |
| Tontogany | Village | Wood | 364 | 373 | 370 | 387 | → |
| Toronto | City | Jefferson | 6,543 | 6,050 | 5,300 | 5,305 | → |
| Tremont City | Village | Clark | 453 | 349 | 377 | 352 | → |
| Trenton | City | Butler | 6,253 | 8,736 | 11,882 | 13,023 | → |
| Trimble | Village | Athens | 434 | 449 | 401 | 328 | → |
| Trinway | Census-Designated Place | Muskingum | 313 | 368 | 365 | 358 | → |
| Trotwood | City | Montgomery | 29,411 | 27,407 | 24,424 | 23,078 | → |
| Troy | City | Miami | 19,619 | 22,081 | 25,232 | 26,337 | → |
| Tuppers Plains | Census-Designated Place | Meigs | 392 | 393 | 465 | 438 | → |
| Turpin Hills | Census-Designated Place | Hamilton | 4,927 | 4,960 | 5,099 | 5,162 | → |
| Tuscarawas | Village | Tuscarawas | 860 | 958 | 1,052 | 1,029 | → |
| Twinsburg | City | Summit | 9,670 | 17,056 | 18,492 | 19,252 | → |
| Twinsburg Heights | Census-Designated Place | Summit | 1,107 | 1,099 | 925 | 999 | → |
| Uhrichsville | City | Tuscarawas | 5,647 | 5,703 | 5,413 | 5,263 | → |
| Union | City | Montgomery / Miami | 6,144 | 6,085 | 6,439 | 6,895 | → |
| Union City | Village | Darke | 1,993 | 1,767 | 1,663 | 1,578 | → |
| Uniontown | Census-Designated Place | Stark | 5,109 | 5,706 | 6,930 | 7,173 | → |
| Unionville Center | Village | Union | 237 | 294 | 238 | 240 | → |
| Uniopolis | Census-Designated Place | Auglaize | 262 | 260 | 222 | 188 | → |
| University Heights | City | Cuyahoga | 14,754 | 14,129 | 13,545 | 13,918 | → |
| Upper Arlington | City | Franklin | 34,248 | 33,835 | 33,675 | 36,793 | → |
| Upper Sandusky | City | Wyandot | 6,132 | 6,525 | 6,602 | 6,697 | → |
| Urbana | City | Champaign | 11,393 | 11,624 | 11,872 | 11,175 | → |
| Urbancrest | Village | Franklin | 856 | 871 | 952 | 1,036 | → |
| Utica | Village | Licking / Knox | 2,124 | 2,131 | 2,149 | 2,067 | → |
| Valley City | Census-Designated Place | Medina | 378 | 464 | 632 | 943 | → |
| Valley Hi | Village | Logan | 217 | 252 | 214 | 229 | → |
| Valley View | Village | Cuyahoga | 2,137 | 2,178 | 2,034 | 1,901 | → |
| Valleyview | Village | Franklin | 610 | 607 | 616 | 671 | → |
| Van Buren | Village | Hancock | 344 | 303 | 324 | 397 | → |
| Van Wert | City | Van Wert | 11,021 | 11,192 | 10,843 | 11,115 | → |
| Vandalia | City | Montgomery | 14,211 | 14,611 | 15,256 | 15,201 | → |
| Vanlue | Village | Hancock | 371 | 374 | 362 | 346 | → |
| Vaughnsville | Census-Designated Place | Putnam | 199 | 69 | 262 | 278 | → |
| Venedocia | Village | Van Wert | 158 | 162 | 124 | 138 | → |
| Vermilion | City | Lorain / Erie | 11,034 | 11,028 | 10,679 | 10,659 | → |
| Verona | Village | Preble / Montgomery | 517 | 494 | 496 | 405 | → |
| Versailles | Village | Darke | 2,396 | 2,571 | 2,687 | 2,743 | → |
| Vickery | Census-Designated Place | Sandusky | 144 | 176 | 121 | 101 | → |
| Vienna Center | Census-Designated Place | Trumbull | 810 | 748 | 650 | 622 | → |
| Vincent | Census-Designated Place | Washington | 170 | 190 | 339 | 329 | → |
| Vinton | Village | Gallia | 283 | 327 | 217 | 223 | → |
| Wadsworth | City | Medina | 16,565 | 19,112 | 21,611 | 24,018 | → |
| Waite Hill | Village | Lake | 459 | 453 | 471 | 543 | → |
| Wakeman | Village | Huron | 966 | 948 | 1,048 | 991 | → |
| Walbridge | Village | Wood | 3,706 | 3,134 | 3,018 | 3,012 | → |
| Waldo | Village | Marion | 340 | 330 | 339 | 323 | → |
| Walnut Creek | Census-Designated Place | Holmes | 713 | 714 | 878 | 908 | → |
| Walton Hills | Village | Cuyahoga | 2,368 | 2,410 | 2,281 | 2,032 | → |
| Wapakoneta | City | Auglaize | 9,545 | 9,527 | 9,869 | 9,951 | → |
| Warren | City | Trumbull | 50,979 | 48,100 | 41,584 | 39,248 | → |
| Warrensville Heights | City | Cuyahoga | 15,873 | 15,091 | 13,546 | 13,773 | → |
| Warsaw | Village | Coshocton | 767 | 763 | 696 | 638 | → |
| Washington Court House | City | Fayette | 13,008 | 13,597 | 14,234 | 14,409 | → |
| Washingtonville | Village | Columbiana / Mahoning | 900 | 836 | 801 | 715 | → |
| Waterford | Census-Designated Place | Washington | 230 | 331 | 450 | 384 | → |
| Waterville | City | Lucas | 4,612 | 5,009 | 5,513 | 6,009 | → |
| Wauseon | City | Fulton | 6,333 | 7,034 | 7,389 | 7,561 | → |
| Waverly | Village | Pike | 4,453 | 4,587 | 4,339 | 4,162 | → |
| Wayne | Village | Wood | 831 | 848 | 887 | 842 | → |
| Wayne Lakes | Village | Darke | 698 | 715 | 717 | 688 | → |
| Waynesburg | Village | Stark | 1,073 | 999 | 919 | 925 | → |
| Waynesfield | Village | Auglaize | 747 | 696 | 841 | 754 | → |
| Waynesville | Village | Warren | 1,986 | 2,681 | 2,811 | 2,667 | → |
| Wellington | Village | Lorain | 4,152 | 4,509 | 4,829 | 4,804 | → |
| Wellston | City | Jackson | 6,132 | 6,043 | 5,655 | 5,416 | → |
| Wellsville | Village | Columbiana | 4,544 | 4,127 | 3,541 | 3,116 | → |
| West Alexandria | Village | Preble | 1,169 | 1,106 | 1,379 | 1,327 | → |
| West Carrollton | City | Montgomery | 14,443 | 13,811 | 13,148 | 13,109 | → |
| West Elkton | Village | Preble | 234 | 183 | 197 | 164 | → |
| West Farmington | Village | Trumbull | 572 | 506 | 517 | 539 | → |
| West Hill | Census-Designated Place | Trumbull | 2,954 | 2,523 | 2,273 | 2,218 | → |
| West Jefferson | Village | Madison | 4,998 | 4,487 | 4,234 | 4,145 | → |
| West Lafayette | Village | Coshocton | 2,327 | 2,479 | 2,327 | 2,426 | → |
| West Leipsic | Village | Putnam | 326 | 273 | 202 | 221 | → |
| West Liberty | Village | Logan | 1,742 | 1,820 | 1,802 | 1,766 | → |
| West Logan | Census-Designated Place | Hocking | 668 | 873 | 955 | 912 | → |
| West Manchester | Village | Preble | 483 | 437 | 468 | 417 | → |
| West Mansfield | Village | Logan | 803 | 705 | 686 | 755 | → |
| West Millgrove | Village | Wood | 171 | 78 | 174 | 132 | → |
| West Milton | Village | Miami | 4,489 | 4,712 | 4,626 | 4,699 | → |
| West Portsmouth | Census-Designated Place | Scioto | 3,551 | 3,458 | 3,149 | 2,928 | → |
| West Rushville | Village | Fairfield | 131 | 155 | 143 | 165 | → |
| West Salem | Village | Wayne | 1,641 | 1,508 | 1,498 | 1,431 | → |
| West Union | Village | Adams | 3,207 | 2,949 | 3,248 | 3,009 | → |
| West Unity | Village | Williams | 1,734 | 1,717 | 1,715 | 1,760 | → |
| Westerville | City | Franklin / Delaware | 30,693 | 35,201 | 36,268 | 39,192 | → |
| Westfield Center | Village | Medina | 884 | 1,077 | 1,120 | 1,191 | → |
| Westlake | City | Cuyahoga | 27,018 | 31,606 | 32,726 | 34,238 | → |
| Westminster | Census-Designated Place | Allen | 460 | 418 | 403 | 406 | → |
| Weston | Village | Wood | 1,773 | 1,658 | 1,590 | 1,453 | → |
| Wetherington | Census-Designated Place | Butler | 359 | 1,010 | 1,302 | 1,381 | → |
| Wharton | Village | Wyandot | 374 | 408 | 358 | 328 | → |
| Wheelersburg | Census-Designated Place | Scioto | 6,309 | 6,471 | 6,437 | 6,531 | → |
| White Oak | Census-Designated Place | Hamilton | 18,865 | 19,722 | 19,167 | 19,541 | → |
| Whitehall | City | Franklin | 20,639 | 19,074 | 18,138 | 20,127 | → |
| Whitehouse | Village | Lucas | 2,511 | 2,778 | 4,137 | 4,989 | → |
| Whites Landing | Census-Designated Place | Erie / Sandusky | 335 | 397 | 375 | 350 | → |
| Wickliffe | City | Lake | 14,558 | 13,382 | 12,756 | 12,667 | → |
| Wightmans Grove | Census-Designated Place | Sandusky | 86 | 74 | 72 | 55 | → |
| Wilberforce | Census-Designated Place | Greene | 2,639 | 1,579 | 2,271 | 2,410 | → |
| Wilkesville | Village | Vinton | 151 | 147 | 149 | 112 | → |
| Wilkshire Hills | Census-Designated Place | Tuscarawas | 2,263 | 2,881 | 2,911 | 2,940 | → |
| Willard | City | Huron | 6,368 | 6,823 | 6,241 | 6,206 | → |
| Williamsburg | Village | Clermont | 2,318 | 2,395 | 2,469 | 2,583 | → |
| Williamsdale | Census-Designated Place | Butler | 663 | 597 | 581 | 578 | → |
| Williamsport | Village | Pickaway | 849 | 1,004 | 1,036 | 975 | → |
| Williston | Census-Designated Place | Ottawa | 422 | 201 | 487 | 439 | → |
| Willoughby | City | Lake | 20,945 | 22,212 | 22,242 | 23,858 | → |
| Willoughby Hills | City | Lake | 8,012 | 8,995 | 9,490 | 10,015 | → |
| Willowick | City | Lake | 15,269 | 14,466 | 14,178 | 14,223 | → |
| Willshire | Village | Van Wert | 541 | 465 | 397 | 405 | → |
| Wilmington | City | Clinton | 11,167 | 12,083 | 12,578 | 12,663 | → |
| Wilmot | Village | Stark | 267 | 318 | 315 | 285 | → |
| Wilson | Village | Monroe / Belmont | 129 | 125 | 125 | 135 | → |
| Winchester | Village | Adams | 917 | 1,050 | 1,044 | 986 | → |
| Windham | Village | Portage | 2,944 | 2,799 | 2,221 | 1,661 | → |
| Winesburg | Census-Designated Place | Holmes | 72 | 69 | 352 | 340 | → |
| Wintersville | Village | Jefferson | 4,310 | 3,841 | 3,916 | 3,771 | → |
| Withamsville | Census-Designated Place | Clermont | 5,673 | 7,090 | 7,021 | 7,357 | → |
| Wolfhurst | Census-Designated Place | Belmont | 950 | 878 | 1,239 | 1,119 | → |
| Woodlawn | Village | Hamilton | 2,672 | 2,798 | 3,329 | 3,909 | → |
| Woodmere | Village | Cuyahoga | 864 | 857 | 889 | 638 | → |
| Woodsdale | Census-Designated Place | Butler | 349 | 300 | 330 | 442 | → |
| Woodsfield | Village | Monroe | 2,858 | 2,554 | 2,381 | 2,209 | → |
| Woodstock | Village | Champaign | 308 | 317 | 301 | 294 | → |
| Woodville | Village | Sandusky | 1,945 | 2,034 | 2,135 | 2,004 | → |
| Woodworth | Census-Designated Place | Mahoning | 1,329 | 1,584 | 1,726 | 1,784 | → |
| Wooster | City | Wayne | 23,085 | 25,202 | 26,177 | 27,246 | → |
| Worthington | City | Franklin | 14,902 | 14,132 | 13,569 | 14,783 | → |
| Wren | Village | Van Wert | 187 | 205 | 194 | 154 | → |
| Wright-Patterson AFB | Census-Designated Place | Greene | 3,835 | 3,143 | 1,821 | 1,567 | → |
| Wyoming | City | Hamilton | 8,024 | 8,297 | 8,409 | 8,764 | → |
| Xenia | City | Greene | 25,270 | 24,248 | 25,643 | 25,435 | → |
| Yankee Lake | Village | Trumbull | 106 | 76 | 79 | 74 | → |
| Yellow Springs | Village | Greene | 4,003 | 3,855 | 3,510 | 3,702 | → |
| Yorkshire | Village | Darke | 99 | 116 | 96 | 105 | → |
| Yorkville | Village | Belmont / Jefferson | 1,242 | 1,239 | 1,075 | 968 | → |
| Youngstown | City | Mahoning / Trumbull | 95,728 | 81,990 | 66,946 | 60,047 | → |
| Zaleski | Village | Vinton | 294 | 353 | 278 | 230 | → |
| Zanesfield | Village | Logan | 181 | 228 | 197 | 191 | → |
| Zanesville | City | Muskingum | 27,276 | 25,760 | 25,424 | 24,769 | → |
| Zoar | Village | Tuscarawas | 177 | 190 | 166 | 176 | → |
Source: U.S. Census Bureau.
Explanation: Latest available rebased population figures are used. In case of significant changes, they were recalculated by using census block data.