All counties in the State of Ohio.
| Name | Status | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|
| Adams | County | 25,371 | 27,303 | 28,550 | o |
| Allen | County | 109,755 | 108,464 | 106,331 | o |
| Ashland | County | 47,507 | 52,516 | 53,139 | o |
| Ashtabula | County | 99,880 | 102,681 | 101,497 | o |
| Athens | County | 59,549 | 62,193 | 64,757 | o |
| Auglaize | County | 44,585 | 46,230 | 45,949 | o |
| Belmont | County | 71,074 | 70,239 | 70,400 | o |
| Brown | County | 34,966 | 42,261 | 44,846 | o |
| Butler | County | 291,479 | 332,341 | 368,130 | o |
| Carroll | County | 26,521 | 28,822 | 28,836 | o |
| Champaign | County | 36,019 | 38,904 | 40,097 | o |
| Clark | County | 147,538 | 144,742 | 138,333 | o |
| Clermont | County | 150,094 | 177,322 | 197,363 | o |
| Clinton | County | 35,444 | 40,473 | 42,040 | o |
| Columbiana | County | 108,276 | 112,050 | 107,841 | o |
| Coshocton | County | 35,427 | 36,654 | 36,901 | o |
| Crawford | County | 47,870 | 46,909 | 43,784 | o |
| Cuyahoga | County | 1,412,140 | 1,393,871 | 1,280,122 | o |
| Darke | County | 53,617 | 53,313 | 52,959 | o |
| Defiance | County | 39,350 | 39,502 | 39,037 | o |
| Delaware | County | 66,929 | 109,974 | 174,214 | o |
| Erie | County | 76,781 | 79,623 | 77,079 | o |
| Fairfield | County | 103,468 | 122,943 | 146,156 | o |
| Fayette | County | 27,466 | 28,474 | 29,030 | o |
| Franklin | County | 961,437 | 1,068,736 | 1,163,414 | o |
| Fulton | County | 38,498 | 42,051 | 42,698 | o |
| Gallia | County | 30,954 | 31,058 | 30,934 | o |
| Geauga | County | 81,087 | 90,935 | 93,389 | o |
| Greene | County | 136,731 | 147,931 | 161,573 | o |
| Guernsey | County | 39,024 | 40,813 | 40,087 | o |
| Hamilton | County | 866,228 | 845,289 | 802,374 | o |
| Hancock | County | 65,536 | 71,303 | 74,782 | o |
| Hardin | County | 31,111 | 31,966 | 32,058 | o |
| Harrison | County | 16,085 | 15,847 | 15,864 | o |
| Henry | County | 29,108 | 29,202 | 28,215 | o |
| Highland | County | 35,728 | 40,853 | 43,589 | o |
| Hocking | County | 25,533 | 28,263 | 29,380 | o |
| Holmes | County | 32,849 | 38,940 | 42,366 | o |
| Huron | County | 56,238 | 59,447 | 59,626 | o |
| Jackson | County | 30,230 | 32,653 | 33,225 | o |
| Jefferson | County | 80,298 | 73,886 | 69,709 | o |
| Knox | County | 47,473 | 54,482 | 60,921 | o |
| Lake | County | 215,500 | 227,482 | 230,041 | o |
| Lawrence | County | 61,834 | 62,330 | 62,450 | o |
| Licking | County | 128,300 | 145,699 | 166,492 | o |
| Logan | County | 42,310 | 46,002 | 45,858 | o |
| Lorain | County | 271,126 | 284,657 | 301,356 | o |
| Lucas | County | 462,361 | 455,093 | 441,815 | o |
| Madison | County | 37,078 | 40,210 | 43,435 | o |
| Mahoning | County | 264,806 | 257,588 | 238,823 | o |
| Marion | County | 64,274 | 66,198 | 66,501 | o |
| Medina | County | 122,354 | 151,096 | 172,332 | o |
| Meigs | County | 22,987 | 23,058 | 23,770 | o |
| Mercer | County | 39,443 | 40,936 | 40,814 | o |
| Miami | County | 93,184 | 98,899 | 102,506 | o |
| Monroe | County | 15,497 | 15,172 | 14,642 | o |
| Montgomery | County | 573,809 | 559,141 | 535,153 | o |
| Morgan | County | 14,194 | 14,947 | 15,054 | o |
| Morrow | County | 27,749 | 31,646 | 34,827 | o |
| Muskingum | County | 82,068 | 84,549 | 86,074 | o |
| Noble | County | 11,336 | 14,058 | 14,645 | o |
| Ottawa | County | 40,029 | 40,974 | 41,428 | o |
| Paulding | County | 20,488 | 20,297 | 19,614 | o |
| Perry | County | 31,557 | 34,052 | 36,058 | o |
| Pickaway | County | 48,248 | 52,728 | 55,698 | o |
| Pike | County | 24,249 | 27,628 | 28,709 | o |
| Portage | County | 142,585 | 152,126 | 161,419 | o |
| Preble | County | 40,113 | 42,340 | 42,270 | o |
| Putnam | County | 33,819 | 34,722 | 34,499 | o |
| Richland | County | 126,137 | 128,932 | 124,475 | o |
| Ross | County | 69,330 | 73,382 | 78,064 | o |
| Sandusky | County | 61,963 | 61,797 | 60,944 | o |
| Scioto | County | 80,327 | 79,215 | 79,499 | o |
| Seneca | County | 59,733 | 58,663 | 56,745 | o |
| Shelby | County | 44,915 | 48,292 | 49,423 | o |
| Stark | County | 367,585 | 378,144 | 375,586 | o |
| Summit | County | 514,990 | 542,849 | 541,781 | o |
| Trumbull | County | 227,795 | 225,105 | 210,312 | o |
| Tuscarawas | County | 84,090 | 90,919 | 92,582 | o |
| Union | County | 31,969 | 40,975 | 52,300 | o |
| Van Wert | County | 30,464 | 29,654 | 28,744 | o |
| Vinton | County | 11,098 | 12,809 | 13,435 | o |
| Warren | County | 113,973 | 159,551 | 212,693 | o |
| Washington | County | 62,254 | 63,242 | 61,778 | o |
| Wayne | County | 101,461 | 111,562 | 114,520 | o |
| Williams | County | 36,956 | 39,189 | 37,642 | o |
| Wood | County | 113,269 | 121,072 | 125,488 | o |
| Wyandot | County | 22,254 | 22,897 | 22,615 | o |
| Ohio | Federal State | 10,847,115 | 11,353,336 | 11,536,504 |
All places in the State of Ohio.
| Name | Status | County | Population census 1990-04-01 | Population census 2000-04-01 | Population census 2010-04-01 | |
|---|---|---|---|---|---|---|
| Aberdeen | Village | Brown | 1,570 | 1,588 | 1,638 | o |
| Ada | Village | Hardin | 5,435 | 5,577 | 5,952 | o |
| Adamsville | Village | Muskingum | 154 | 127 | 114 | o |
| Addyston | Village | Hamilton | 1,167 | 1,010 | 938 | o |
| Adelphi | Village | Ross | 394 | 371 | 380 | o |
| Adena | Village | 842 | 815 | 759 | o | |
| Akron | City | Summit | 223,182 | 217,106 | 199,110 | o |
| Albany | Village | Athens | 820 | 806 | 828 | o |
| Alexandria | Village | Licking | ... | 255 | 517 | o |
| Alger | Village | Hardin | 869 | 888 | 860 | o |
| Alliance | City | 23,414 | 23,425 | 22,322 | o | |
| Alvordton | Census-Designated Place | Williams | 298 | 305 | 217 | o |
| Amanda | Village | Fairfield | 729 | 705 | 737 | o |
| Amberley | Village | Hamilton | 3,096 | 3,425 | 3,585 | o |
| Amelia | Village | Clermont | 1,996 | 2,797 | 4,801 | o |
| Amesville | Village | Athens | 248 | 184 | 154 | o |
| Amherst | City | Lorain | 10,618 | 11,797 | 12,021 | o |
| Amsterdam | Village | Jefferson | 669 | 570 | 511 | o |
| Andersonville | Census-Designated Place | Ross | ... | ... | 779 | o |
| Andover | Village | Ashtabula | 1,212 | 1,269 | 1,145 | o |
| Anna | Village | Shelby | 1,170 | 1,338 | 1,567 | o |
| Ansonia | Village | Darke | 1,277 | 1,149 | 1,174 | o |
| Antioch | Village | Monroe | 81 | 89 | 86 | o |
| Antwerp | Village | Paulding | 1,729 | 1,751 | 1,736 | o |
| Apple Creek | Village | Wayne | 866 | 999 | 1,173 | o |
| Apple Valley | Census-Designated Place | Knox | ... | ... | 5,058 | o |
| Aquilla | Village | Geauga | 360 | 372 | 340 | o |
| Arcadia | Village | Hancock | ... | 589 | 590 | o |
| Arcanum | Village | Darke | 2,069 | 2,074 | 2,129 | o |
| Archbold | Village | Fulton | 3,493 | 4,315 | 4,346 | o |
| Arlington | Village | Hancock | 1,257 | 1,378 | 1,455 | o |
| Arlington Heights | Village | Hamilton | 951 | 899 | 745 | o |
| Ashland | City | Ashland | 20,628 | 21,265 | 20,362 | o |
| Ashley | Village | Delaware | 1,112 | 1,249 | 1,330 | o |
| Ashtabula | City | Ashtabula | 21,688 | 20,971 | 19,124 | o |
| Ashville | Village | Pickaway | 2,284 | 3,178 | 4,097 | o |
| Athalia | Village | Lawrence | 154 | 333 | 373 | o |
| Athens | City | Athens | 21,310 | 21,351 | 23,832 | o |
| Attica | Village | Seneca | 937 | 964 | 899 | o |
| Atwater | Census-Designated Place | Portage | ... | ... | 758 | o |
| Aurora | City | Portage | 9,157 | 13,556 | 15,548 | o |
| Austinburg | Census-Designated Place | Ashtabula | ... | ... | 516 | o |
| Austintown | Census-Designated Place | Mahoning | 32,371 | 31,627 | 29,677 | o |
| Avon | City | Lorain | 7,337 | 11,446 | 21,193 | o |
| Avon Lake | City | Lorain | 15,067 | 18,145 | 22,581 | o |
| Bailey Lakes | Village | Ashland | 361 | 395 | 371 | o |
| Bainbridge | Census-Designated Place | Geauga | 3,602 | 3,417 | 3,267 | o |
| Bainbridge | Village | Ross | 958 | 1,013 | 860 | o |
| Bairdstown | Village | Wood | 137 | 130 | 130 | o |
| Ballville | Census-Designated Place | Sandusky | 3,083 | 3,255 | 2,976 | o |
| Baltic | Village | 697 | 743 | 795 | o | |
| Baltimore | Village | Fairfield | 2,997 | 2,878 | 2,966 | o |
| Bannock | Census-Designated Place | Belmont | ... | ... | 211 | o |
| Barberton | City | Summit | 27,821 | 27,957 | 26,550 | o |
| Barnesville | Village | Belmont | 4,365 | 4,240 | 4,193 | o |
| Barnhill | Village | Tuscarawas | 271 | 364 | 396 | o |
| Bascom | Census-Designated Place | Seneca | ... | ... | 390 | o |
| Batavia | Village | Clermont | ... | 1,671 | 1,509 | o |
| Batesville | Village | Noble | 95 | 100 | 71 | o |
| Bay View | Village | Erie | 727 | 692 | 632 | o |
| Bay Village | City | Cuyahoga | 17,000 | 16,087 | 15,651 | o |
| Beach City | Village | Stark | 1,045 | 1,137 | 1,033 | o |
| Beachwood | City | Cuyahoga | 10,692 | 12,186 | 11,953 | o |
| Beallsville | Village | Monroe | 441 | 423 | 409 | o |
| Beaver | Village | Pike | 322 | 464 | 449 | o |
| Beavercreek | City | Greene | 33,579 | 37,980 | 45,193 | o |
| Beaverdam | Village | Allen | 447 | 356 | 382 | o |
| Beckett Ridge | Census-Designated Place | Butler | 4,505 | 8,663 | 9,187 | o |
| Bedford | City | Cuyahoga | 14,829 | 14,216 | 13,074 | o |
| Bedford Heights | City | Cuyahoga | 12,131 | 11,375 | 10,751 | o |
| Beechwood Trails | Census-Designated Place | Licking | ... | ... | 3,020 | o |
| Bellaire | Village | Belmont | 5,936 | 4,854 | 4,278 | o |
| Bellbrook | City | Greene | 6,364 | 7,009 | 6,943 | o |
| Belle Center | Village | Logan | 810 | 807 | 813 | o |
| Belle Valley | Village | Noble | 267 | 263 | 223 | o |
| Bellefontaine | City | Logan | 12,193 | 13,176 | 13,370 | o |
| Bellevue | City | 8,191 | 8,213 | 8,202 | o | |
| Bellville | Village | Richland | 1,712 | 1,776 | 1,918 | o |
| Belmont | Village | Belmont | 481 | 538 | 453 | o |
| Belmore | Village | Putnam | 157 | 171 | 143 | o |
| Beloit | Village | Mahoning | 1,042 | 1,031 | 978 | o |
| Belpre | City | Washington | 6,924 | 6,660 | 6,441 | o |
| Bentleyville | Village | Cuyahoga | 585 | 947 | 864 | o |
| Benton Ridge | Village | Hancock | 348 | 312 | 299 | o |
| Bentonville | Census-Designated Place | Adams | ... | ... | 287 | o |
| Berea | City | Cuyahoga | 19,047 | 18,985 | 19,093 | o |
| Bergholz | Village | Jefferson | 716 | 769 | 664 | o |
| Berkey | Village | Lucas | 283 | 265 | 237 | o |
| Berlin | Census-Designated Place | Holmes | ... | ... | 898 | o |
| Berlin Heights | Village | Erie | 648 | 685 | 714 | o |
| Bethel | Village | Clermont | 2,413 | 2,663 | 2,711 | o |
| Bethesda | Village | Belmont | ... | 1,350 | 1,256 | o |
| Bettsville | Village | Seneca | 752 | 784 | 661 | o |
| Beulah Beach | Census-Designated Place | Erie | ... | ... | 53 | o |
| Beverly | Village | Washington | 1,449 | 1,282 | 1,313 | o |
| Bexley | City | Franklin | 13,088 | 13,203 | 13,057 | o |
| Blacklick Estates | Census-Designated Place | Franklin | ... | ... | 8,682 | o |
| Bladensburg | Census-Designated Place | Knox | ... | ... | 191 | o |
| Blakeslee | Village | Williams | 128 | 130 | 96 | o |
| Blanchester | Village | 4,158 | 4,297 | 4,243 | o | |
| Bloomdale | Village | Wood | 632 | 724 | 678 | o |
| Bloomingburg | Village | Fayette | 764 | 874 | 938 | o |
| Bloomingdale | Village | Jefferson | 227 | 223 | 202 | o |
| Bloomville | Village | Seneca | 956 | 1,045 | 956 | o |
| Blue Ash | City | Hamilton | 11,812 | 12,513 | 12,114 | o |
| Blue Jay | Census-Designated Place | Hamilton | ... | ... | 959 | o |
| Bluffton | Village | 3,369 | 3,904 | 4,125 | o | |
| Boardman | Census-Designated Place | Mahoning | ... | ... | 35,376 | o |
| Bolindale | Census-Designated Place | Trumbull | 2,827 | 2,489 | 2,089 | o |
| Bolivar | Village | Tuscarawas | 930 | 901 | 994 | o |
| Boston Heights | Village | Summit | 779 | 1,186 | 1,300 | o |
| Botkins | Village | Shelby | 1,337 | 1,210 | 1,155 | o |
| Bourneville | Census-Designated Place | Ross | ... | ... | 199 | o |
| Bowerston | Village | Harrison | 454 | 414 | 398 | o |
| Bowersville | Village | Greene | ... | 332 | 312 | o |
| Bowling Green | City | Wood | 28,867 | 29,710 | 30,028 | o |
| Bradford | Village | 1,994 | 1,908 | 1,842 | o | |
| Bradner | Village | Wood | 1,075 | 1,171 | 985 | o |
| Brady Lake | Village | Portage | 528 | 513 | 464 | o |
| Bratenahl | Village | Cuyahoga | 1,356 | 1,337 | 1,197 | o |
| Brecksville | City | Cuyahoga | 11,823 | 13,382 | 13,656 | o |
| Brecon | Census-Designated Place | Hamilton | ... | ... | 244 | o |
| Bremen | Village | Fairfield | 1,380 | 1,272 | 1,425 | o |
| Brewster | Village | Stark | 2,260 | 2,346 | 2,112 | o |
| Brice | Village | Franklin | 101 | 70 | 114 | o |
| Bridgeport | Village | Belmont | 2,416 | 2,200 | 1,831 | o |
| Bridgetown | Census-Designated Place | Hamilton | ... | ... | 14,407 | o |
| Brilliant | Census-Designated Place | Jefferson | ... | ... | 1,482 | o |
| Brimfield | Census-Designated Place | Portage | 3,223 | 3,248 | 3,343 | o |
| Broadview Heights | City | Cuyahoga | 12,226 | 15,968 | 19,400 | o |
| Brook Park | City | Cuyahoga | 22,866 | 21,214 | 19,212 | o |
| Brookfield Center | Census-Designated Place | Trumbull | 1,396 | 1,288 | 1,207 | o |
| Brooklyn | City | Cuyahoga | 11,642 | 11,586 | 11,169 | o |
| Brooklyn Heights | Village | Cuyahoga | 1,461 | 1,558 | 1,543 | o |
| Brookside | Village | Belmont | ... | 664 | 632 | o |
| Brookville | City | Montgomery | 4,785 | 5,422 | 5,884 | o |
| Broughton | Village | Paulding | 151 | 164 | 120 | o |
| Brownsville | Census-Designated Place | Licking | ... | ... | 220 | o |
| Brunswick | City | Medina | 28,440 | 33,434 | 34,255 | o |
| Bryan | City | Williams | 8,235 | 8,549 | 8,545 | o |
| Buchtel | Village | 607 | 575 | 558 | o | |
| Buckeye Lake | Village | 2,973 | 3,052 | 2,746 | o | |
| Buckland | Village | Auglaize | 248 | 255 | 233 | o |
| Bucyrus | City | Crawford | 13,773 | 13,233 | 12,362 | o |
| Buffalo | Census-Designated Place | Guernsey | ... | ... | 401 | o |
| Buford | Census-Designated Place | Highland | ... | ... | 352 | o |
| Burbank | Village | Wayne | 284 | 285 | 207 | o |
| Burgoon | Village | Sandusky | 224 | 199 | 172 | o |
| Burkettsville | Village | 266 | 254 | 244 | o | |
| Burlington | Census-Designated Place | Lawrence | 3,003 | 2,794 | 2,676 | o |
| Burton | Village | Geauga | 1,371 | 1,442 | 1,455 | o |
| Butler | Village | Richland | 1,039 | 921 | 933 | o |
| Butlerville | Village | Warren | 152 | 231 | 163 | o |
| Byesville | Village | Guernsey | 2,442 | 2,583 | 2,438 | o |
| Cadiz | Village | Harrison | 3,441 | 3,308 | 3,353 | o |
| Cairo | Village | Allen | 531 | 499 | 524 | o |
| Calcutta | Census-Designated Place | Columbiana | ... | 3,491 | 3,742 | o |
| Caldwell | Village | Noble | 1,786 | 1,956 | 1,748 | o |
| Caledonia | Village | Marion | 636 | 578 | 577 | o |
| Cambridge | City | Guernsey | 11,887 | 11,543 | 10,635 | o |
| Camden | Village | Preble | 2,240 | 2,302 | 2,046 | o |
| Camp Dennison | Census-Designated Place | Hamilton | ... | ... | 375 | o |
| Campbell | City | Mahoning | 10,034 | 9,460 | 8,235 | o |
| Canal Fulton | City | Stark | 4,292 | 5,126 | 5,479 | o |
| Canal Lewisville | Census-Designated Place | Coshocton | ... | ... | 320 | o |
| Canal Winchester | Village | 2,652 | 4,554 | 7,101 | o | |
| Candlewood Lake | Census-Designated Place | Morrow | ... | ... | 1,147 | o |
| Canfield | City | Mahoning | 5,398 | 7,411 | 7,515 | o |
| Canton | City | Stark | 84,047 | 80,935 | 73,007 | o |
| Carbon Hill | Census-Designated Place | Hocking | ... | ... | 233 | o |
| Cardington | Village | Morrow | 1,792 | 1,852 | 2,047 | o |
| Carey | Village | Wyandot | 3,663 | 3,901 | 3,674 | o |
| Carlisle | City | 4,912 | 5,156 | 4,915 | o | |
| Carroll | Village | Fairfield | ... | 511 | 524 | o |
| Carrollton | Village | Carroll | 3,134 | 3,187 | 3,241 | o |
| Casstown | Village | Miami | 258 | 322 | 267 | o |
| Castalia | Village | Erie | 973 | 938 | 852 | o |
| Castine | Village | Darke | 66 | 129 | 130 | o |
| Catawba | Village | Clark | 240 | 312 | 272 | o |
| Cecil | Village | Paulding | 249 | 216 | 188 | o |
| Cedarville | Village | Greene | 3,287 | 3,791 | 4,019 | o |
| Celeryville | Census-Designated Place | Huron | ... | ... | 210 | o |
| Celina | City | Mercer | 10,046 | 10,409 | 10,400 | o |
| Centerburg | Village | Knox | 1,338 | 1,453 | 1,773 | o |
| Centerville | Village | Gallia | 128 | 136 | 103 | o |
| Centerville | City | Montgomery | 21,276 | 23,041 | 23,999 | o |
| Chagrin Falls | Village | Cuyahoga | 4,154 | 4,024 | 4,113 | o |
| Champion Heights | Census-Designated Place | Trumbull | ... | ... | 6,498 | o |
| Chardon | City | Geauga | 4,463 | 5,156 | 5,148 | o |
| Chatfield | Village | Crawford | 208 | 218 | 189 | o |
| Chauncey | Village | Athens | 1,114 | 1,067 | 1,049 | o |
| Cherry Fork | Village | Adams | 140 | 127 | 155 | o |
| Cherry Grove | Census-Designated Place | Hamilton | 4,972 | 4,555 | 4,378 | o |
| Chesapeake | Village | Lawrence | 1,275 | 842 | 745 | o |
| Cheshire | Village | Gallia | ... | 355 | 132 | o |
| Chesterhill | Village | Morgan | 309 | 305 | 289 | o |
| Chesterland | Census-Designated Place | Geauga | ... | 2,646 | 2,521 | o |
| Chesterville | Village | Morrow | 277 | 193 | 228 | o |
| Cheviot | City | Hamilton | 9,517 | 9,015 | 8,375 | o |
| Chickasaw | Village | Mercer | 367 | 366 | 290 | o |
| Chillicothe | City | Ross | 22,116 | 22,164 | 21,901 | o |
| Chilo | Village | Clermont | 139 | 97 | 63 | o |
| Chippewa Lake | Village | Medina | 951 | 806 | 711 | o |
| Chippewa Park | Census-Designated Place | Logan | ... | ... | 891 | o |
| Choctaw Lake | Census-Designated Place | Madison | ... | 1,562 | 1,546 | o |
| Christiansburg | Village | Champaign | 600 | 553 | 526 | o |
| Churchill | Census-Designated Place | Trumbull | 2,691 | 2,601 | 2,149 | o |
| Cincinnati | City | Hamilton | 364,553 | 331,281 | 296,943 | o |
| Cinnamon Lake | Census-Designated Place | Ashland | ... | ... | 1,243 | o |
| Circleville | City | Pickaway | 12,608 | 13,489 | 13,314 | o |
| Clarington | Village | Monroe | 396 | 444 | 384 | o |
| Clarksburg | Village | Ross | 518 | 515 | 455 | o |
| Clarksville | Village | Clinton | 504 | 497 | 548 | o |
| Clarktown | Census-Designated Place | Scioto | ... | ... | 958 | o |
| Clay Center | Village | Ottawa | 301 | 296 | 276 | o |
| Clayton | City | Montgomery | 13,581 | 13,347 | 13,209 | o |
| Cleveland | City | Cuyahoga | 505,450 | 477,463 | 396,815 | o |
| Cleveland Heights | City | Cuyahoga | 54,087 | 50,771 | 46,121 | o |
| Cleves | Village | Hamilton | 2,245 | 2,790 | 3,234 | o |
| Clifton | Village | 165 | 179 | 152 | o | |
| Clinton | Village | Summit | 1,169 | 1,337 | 1,214 | o |
| Cloverdale | Village | Putnam | 272 | 201 | 168 | o |
| Clyde | City | Sandusky | 6,256 | 6,147 | 6,325 | o |
| Coal Grove | Village | Lawrence | 2,346 | 2,027 | 2,165 | o |
| Coalton | Village | Jackson | 524 | 545 | 479 | o |
| Coldstream | Census-Designated Place | Hamilton | ... | ... | 1,173 | o |
| Coldwater | Village | Mercer | 4,338 | 4,482 | 4,427 | o |
| College Corner | Village | 392 | 424 | 407 | o | |
| Collins | Census-Designated Place | Huron | ... | ... | 631 | o |
| Columbiana | City | 5,091 | 5,648 | 6,384 | o | |
| Columbus | City | 636,323 | 713,418 | 787,033 | o | |
| Columbus Grove | Village | Putnam | 2,276 | 2,202 | 2,137 | o |
| Commercial Point | Village | Pickaway | 436 | 780 | 1,582 | o |
| Concorde Hills | Census-Designated Place | Hamilton | ... | ... | 663 | o |
| Conesville | Village | Coshocton | 412 | 364 | 347 | o |
| Congress | Village | Wayne | 49 | 192 | 185 | o |
| Conneaut | City | Ashtabula | 13,523 | 12,485 | 12,841 | o |
| Continental | Village | Putnam | 1,213 | 1,189 | 1,153 | o |
| Convoy | Village | Van Wert | 1,193 | 1,110 | 1,085 | o |
| Coolville | Village | Athens | 655 | 528 | 496 | o |
| Corning | Village | Perry | 700 | 593 | 583 | o |
| Cortland | City | Trumbull | 5,899 | 6,791 | 7,104 | o |
| Corwin | Village | Warren | 223 | 256 | 421 | o |
| Coshocton | City | Coshocton | 12,293 | 11,687 | 11,216 | o |
| Covedale | Census-Designated Place | Hamilton | 6,669 | 6,360 | 6,447 | o |
| Covington | Village | Miami | ... | 2,651 | 2,584 | o |
| Craig Beach | Village | Mahoning | 1,373 | 1,254 | 1,180 | o |
| Crestline | City | 5,061 | 5,147 | 4,630 | o | |
| Creston | Village | 1,870 | 2,163 | 2,171 | o | |
| Cridersville | Village | Auglaize | 1,913 | 1,815 | 1,852 | o |
| Crooksville | Village | Perry | 2,599 | 2,485 | 2,534 | o |
| Crown City | Village | Gallia | 459 | 411 | 413 | o |
| Crystal Lakes | Census-Designated Place | Clark | 1,613 | 1,411 | 1,483 | o |
| Crystal Rock | Census-Designated Place | Erie | ... | ... | 176 | o |
| Cumberland | Village | Guernsey | 357 | 402 | 367 | o |
| Curtice | Census-Designated Place | Ottawa | ... | ... | 1,526 | o |
| Custar | Village | Wood | 176 | 208 | 179 | o |
| Cuyahoga Falls | City | Summit | 48,867 | 49,346 | 49,652 | o |
| Cuyahoga Heights | Village | Cuyahoga | 672 | 599 | 638 | o |
| Cygnet | Village | Wood | 560 | 564 | 597 | o |
| Cynthiana | Census-Designated Place | Pike | ... | ... | 68 | o |
| Dalton | Village | Wayne | ... | 1,755 | 1,830 | o |
| Damascus | Census-Designated Place | Mahoning | ... | ... | 443 | o |
| Danville | Village | Knox | 1,008 | 1,105 | 1,044 | o |
| Darbydale | Census-Designated Place | Franklin | ... | ... | 793 | o |
| Darbyville | Village | Pickaway | 258 | 293 | 222 | o |
| Darrtown | Census-Designated Place | Butler | ... | ... | 516 | o |
| Day Heights | Census-Designated Place | Clermont | 2,812 | 2,823 | 2,620 | o |
| Dayton | City | Montgomery | 182,393 | 166,210 | 141,527 | o |
| De Graff | Village | Logan | 1,308 | 1,219 | 1,285 | o |
| Deer Park | City | Hamilton | 6,322 | 6,005 | 5,736 | o |
| Deersville | Village | Harrison | 84 | 82 | 79 | o |
| Defiance | City | Defiance | 16,801 | 16,674 | 16,494 | o |
| Delaware | City | Delaware | 20,245 | 25,756 | 34,753 | o |
| Delhi Hills | Census-Designated Place | Hamilton | ... | ... | 5,259 | o |
| Dellroy | Village | Carroll | 326 | 294 | 356 | o |
| Delphos | City | 7,039 | 7,066 | 7,101 | o | |
| Delshire | Census-Designated Place | Hamilton | ... | ... | 3,180 | o |
| Delta | Village | Fulton | 2,861 | 2,930 | 3,103 | o |
| Dennison | Village | Tuscarawas | 3,281 | 2,992 | 2,655 | o |
| Dent | Census-Designated Place | Hamilton | 6,416 | 7,612 | 10,497 | o |
| Derby | Census-Designated Place | Pickaway | ... | ... | 408 | o |
| Deshler | Village | Henry | 1,876 | 1,831 | 1,799 | o |
| Devola | Census-Designated Place | Washington | 2,736 | 2,771 | 2,652 | o |
| Dexter City | Village | Noble | 161 | 166 | 129 | o |
| Dillonvale | Census-Designated Place | Hamilton | 4,209 | 3,716 | 3,474 | o |
| Dillonvale | Village | Jefferson | ... | 730 | 665 | o |
| Dola | Census-Designated Place | Hardin | ... | ... | 140 | o |
| Donnelsville | Village | Clark | 302 | 293 | 304 | o |
| Dover | City | Tuscarawas | 11,649 | 12,260 | 12,826 | o |
| Doylestown | Village | Wayne | 2,638 | 2,811 | 3,051 | o |
| Dresden | Village | Muskingum | 1,595 | 1,423 | 1,529 | o |
| Drexel | Census-Designated Place | Montgomery | ... | 2,057 | 2,076 | o |
| Dry Ridge | Census-Designated Place | Hamilton | ... | ... | 2,782 | o |
| Dry Run | Census-Designated Place | Hamilton | 5,389 | 6,553 | 7,281 | o |
| Dublin | City | 17,021 | 31,623 | 41,751 | o | |
| Duncan Falls | Census-Designated Place | Muskingum | ... | ... | 880 | o |
| Dundee | Census-Designated Place | Tuscarawas | ... | ... | 297 | o |
| Dunkirk | Village | Hardin | 894 | 952 | 875 | o |
| Dunlap | Census-Designated Place | Hamilton | ... | ... | 1,719 | o |
| Dupont | Village | Putnam | 279 | 267 | 318 | o |
| East Canton | Village | Stark | 1,722 | 1,629 | 1,591 | o |
| East Cleveland | City | Cuyahoga | 33,092 | 27,218 | 17,843 | o |
| East Fultonham | Census-Designated Place | Muskingum | ... | ... | 335 | o |
| East Liberty | Census-Designated Place | Logan | ... | ... | 366 | o |
| East Liverpool | City | Columbiana | 13,801 | 13,123 | 11,195 | o |
| East Palestine | City | Columbiana | 5,165 | 4,951 | 4,721 | o |
| East Rochester | Census-Designated Place | Columbiana | ... | ... | 231 | o |
| East Sparta | Village | Stark | 755 | 828 | 819 | o |
| Eastlake | City | Lake | 21,093 | 20,237 | 18,577 | o |
| Eaton | City | Preble | 7,507 | 8,235 | 8,407 | o |
| Eaton Estates | Census-Designated Place | Lorain | 1,586 | 1,409 | 1,222 | o |
| Edgerton | Village | Williams | 2,040 | 2,116 | 2,012 | o |
| Edgewood | Census-Designated Place | Ashtabula | 5,189 | 4,762 | 4,432 | o |
| Edison | Village | Morrow | 440 | 437 | 437 | o |
| Edon | Village | Williams | 883 | 900 | 834 | o |
| Eldorado | Village | Preble | 547 | 543 | 509 | o |
| Elgin | Village | Van Wert | 71 | 50 | 57 | o |
| Elida | Village | Allen | 1,459 | 1,933 | 1,905 | o |
| Elizabethtown | Census-Designated Place | Hamilton | ... | ... | 350 | o |
| Elmore | Village | 1,334 | 1,415 | 1,410 | o | |
| Elmwood Place | Village | Hamilton | 2,947 | 2,681 | 2,188 | o |
| Elyria | City | Lorain | 56,628 | 56,039 | 54,533 | o |
| Empire | Village | Jefferson | ... | 290 | 299 | o |
| Englewood | City | Montgomery | 11,620 | 12,235 | 13,465 | o |
| Enon | Village | Clark | 2,872 | 2,638 | 2,415 | o |
| Etna | Census-Designated Place | Licking | ... | ... | 1,215 | o |
| Euclid | City | Cuyahoga | 54,864 | 52,711 | 48,920 | o |
| Evendale | Village | Hamilton | 3,071 | 3,159 | 2,767 | o |
| Fairborn | City | Greene | 30,953 | 31,584 | 32,352 | o |
| Fairfax | Village | Hamilton | 1,991 | 1,938 | 1,699 | o |
| Fairfield | City | 39,704 | 42,097 | 42,510 | o | |
| Fairfield Beach | Census-Designated Place | Fairfield | 1,084 | 1,163 | 1,292 | o |
| Fairlawn | City | Summit | 6,162 | 7,307 | 7,437 | o |
| Fairport Harbor | Village | Lake | 3,103 | 3,180 | 3,109 | o |
| Fairview | Village | 77 | 81 | 83 | o | |
| Fairview Park | City | Cuyahoga | 17,981 | 17,572 | 16,826 | o |
| Farmersville | Village | Montgomery | 935 | 980 | 1,009 | o |
| Fayette | Village | Fulton | 1,176 | 1,340 | 1,283 | o |
| Fayetteville | Village | Brown | 411 | 380 | 330 | o |
| Felicity | Village | Clermont | 833 | 921 | 818 | o |
| Findlay | City | Hancock | 36,037 | 39,221 | 41,202 | o |
| Finneytown | Census-Designated Place | Hamilton | 13,096 | 13,492 | 12,741 | o |
| Five Points | Census-Designated Place | Warren | ... | ... | 1,824 | o |
| Flat Rock | Census-Designated Place | Seneca | ... | ... | 233 | o |
| Fletcher | Village | Miami | 542 | 510 | 473 | o |
| Florida | Village | Henry | 303 | 246 | 232 | o |
| Flushing | Village | Belmont | 1,047 | 883 | 879 | o |
| Forest | Village | Hardin | 1,588 | 1,505 | 1,461 | o |
| Forest Park | City | Hamilton | 18,552 | 19,462 | 18,720 | o |
| Forestville | Census-Designated Place | Hamilton | 9,185 | 10,978 | 10,532 | o |
| Fort Jennings | Village | Putnam | 443 | 432 | 485 | o |
| Fort Loramie | Village | Shelby | 1,096 | 1,355 | 1,478 | o |
| Fort Recovery | Village | Mercer | 1,331 | 1,283 | 1,430 | o |
| Fort Seneca | Census-Designated Place | Seneca | ... | ... | 254 | o |
| Fort Shawnee | Village | Allen | 4,122 | 3,855 | 3,726 | o |
| Fostoria | City | 14,712 | 13,969 | 13,441 | o | |
| Four Bridges | Census-Designated Place | Butler | ... | ... | 2,919 | o |
| Frankfort | Village | Ross | 1,053 | 1,011 | 1,064 | o |
| Franklin | City | Warren | 10,676 | 11,379 | 11,771 | o |
| Franklin Furnace | Census-Designated Place | Scioto | 1,212 | 1,537 | 1,660 | o |
| Frazeysburg | Village | Muskingum | ... | 1,241 | 1,326 | o |
| Fredericksburg | Village | Wayne | 500 | 487 | 423 | o |
| Fredericktown | Village | Knox | ... | 2,526 | 2,493 | o |
| Freeport | Village | Harrison | 474 | 398 | 369 | o |
| Fremont | City | Sandusky | 17,874 | 17,603 | 16,734 | o |
| Fresno | Census-Designated Place | Coshocton | ... | ... | 140 | o |
| Friendship | Census-Designated Place | Scioto | ... | ... | 351 | o |
| Fruit Hill | Census-Designated Place | Hamilton | 4,101 | 3,945 | 3,755 | o |
| Fulton | Village | Morrow | 341 | 264 | 258 | o |
| Fultonham | Village | Muskingum | 183 | 151 | 176 | o |
| Gahanna | City | Franklin | 24,009 | 32,485 | 33,248 | o |
| Galena | Village | Delaware | ... | 352 | 653 | o |
| Galion | City | Crawford | 11,832 | 11,635 | 10,512 | o |
| Gallipolis | Village | Gallia | 6,082 | 4,180 | 3,641 | o |
| Gambier | Village | Knox | ... | 2,016 | 2,391 | o |
| Gann | Village | Knox | 196 | 143 | 125 | o |
| Garfield Heights | City | Cuyahoga | 31,736 | 30,734 | 28,849 | o |
| Garrettsville | Village | Portage | 2,038 | 2,260 | 2,325 | o |
| Gates Mills | Village | Cuyahoga | 2,515 | 2,493 | 2,270 | o |
| Geneva | City | Ashtabula | 6,731 | 6,595 | 6,215 | o |
| Geneva-on-the-Lake | Village | Ashtabula | 1,614 | 1,557 | 1,288 | o |
| Genoa | Village | Ottawa | ... | 2,367 | 2,336 | o |
| Georgetown | Village | Brown | 3,626 | 3,631 | 4,331 | o |
| Germantown | Village | Montgomery | 4,953 | 4,895 | 5,547 | o |
| Gettysburg | Village | Darke | 539 | 558 | 513 | o |
| Gibsonburg | Village | Sandusky | 2,558 | 2,481 | 2,581 | o |
| Gilboa | Village | Putnam | 215 | 175 | 184 | o |
| Girard | City | Trumbull | 11,327 | 10,902 | 9,958 | o |
| Glandorf | Village | Putnam | 835 | 918 | 1,001 | o |
| Glencoe | Census-Designated Place | Belmont | ... | ... | 310 | o |
| Glendale | Village | Hamilton | 2,362 | 2,188 | 2,155 | o |
| Glenford | Village | Perry | 211 | 198 | 173 | o |
| Glenmont | Village | Holmes | 240 | 283 | 272 | o |
| Glenmoor | Census-Designated Place | Columbiana | 2,307 | 2,192 | 1,987 | o |
| Glenwillow | Village | Cuyahoga | 454 | 449 | 923 | o |
| Gloria Glens Park | Village | Medina | 444 | 538 | 425 | o |
| Glouster | Village | Athens | 1,995 | 1,972 | 1,791 | o |
| Gnadenhutten | Village | Tuscarawas | 1,217 | 1,285 | 1,288 | o |
| Golf Manor | Village | Hamilton | 4,165 | 3,999 | 3,611 | o |
| Good Hope | Census-Designated Place | Fayette | ... | ... | 234 | o |
| Gordon | Village | Darke | 200 | 190 | 212 | o |
| Grafton | Village | Lorain | ... | 6,015 | 6,636 | o |
| Grand Rapids | Village | Wood | 960 | 1,021 | 965 | o |
| Grand River | Village | Lake | 306 | 345 | 399 | o |
| Grandview | Census-Designated Place | Hamilton | ... | 1,391 | 1,466 | o |
| Grandview Heights | City | Franklin | 7,286 | 6,695 | 6,536 | o |
| Granville | Village | Licking | ... | 5,194 | 5,646 | o |
| Granville South | Census-Designated Place | Licking | 1,124 | 1,194 | 1,410 | o |
| Gratiot | Village | 195 | 187 | 221 | o | |
| Gratis | Village | Preble | 1,012 | 934 | 881 | o |
| Graysville | Village | Monroe | 84 | 113 | 76 | o |
| Green | City | Summit | 19,134 | 22,817 | 25,699 | o |
| Green Camp | Village | Marion | 374 | 342 | 374 | o |
| Green Meadows | Census-Designated Place | Clark | ... | ... | 2,327 | o |
| Green Springs | Village | 1,456 | 1,247 | 1,368 | o | |
| Greenfield | City | Highland | 5,154 | 4,944 | 4,639 | o |
| Greenhills | Village | Hamilton | 4,399 | 4,112 | 3,615 | o |
| Greentown | Census-Designated Place | Stark | 1,856 | 3,154 | 3,804 | o |
| Greenville | City | Darke | 12,628 | 13,595 | 13,227 | o |
| Greenwich | Village | Huron | 1,445 | 1,525 | 1,476 | o |
| Groesbeck | Census-Designated Place | Hamilton | 6,684 | 7,202 | 6,788 | o |
| Grove City | City | Franklin | 19,586 | 27,381 | 35,575 | o |
| Groveport | Village | Franklin | ... | 4,004 | 5,363 | o |
| Grover Hill | Village | Paulding | 538 | 410 | 402 | o |
| Hamden | Village | Vinton | 877 | 871 | 879 | o |
| Hamersville | Village | Brown | ... | 552 | 546 | o |
| Hamilton | City | Butler | 61,345 | 60,703 | 62,477 | o |
| Hamler | Village | Henry | 636 | 664 | 576 | o |
| Hanging Rock | Village | Lawrence | 307 | 279 | 221 | o |
| Hannibal | Census-Designated Place | Monroe | ... | ... | 411 | o |
| Hanover | Village | Licking | ... | 945 | 921 | o |
| Hanoverton | Village | Columbiana | 390 | 390 | 408 | o |
| Harbor Hills | Census-Designated Place | Licking | 1,372 | 1,303 | 1,509 | o |
| Harbor View | Village | Lucas | 118 | 99 | 123 | o |
| Harpster | Village | Wyandot | 236 | 203 | 204 | o |
| Harrisburg | Village | 340 | 335 | 320 | o | |
| Harrison | City | Hamilton | 7,482 | 7,690 | 9,897 | o |
| Harrisville | Village | Harrison | 290 | 259 | 235 | o |
| Harrod | Village | Allen | 527 | 491 | 417 | o |
| Hartford | Village | Licking | 425 | 411 | 397 | o |
| Hartville | Village | Stark | 2,038 | 2,174 | 2,944 | o |
| Harveysburg | Village | Warren | 437 | 563 | 546 | o |
| Haskins | Village | Wood | 561 | 638 | 1,188 | o |
| Haviland | Village | Paulding | 216 | 180 | 215 | o |
| Haydenville | Census-Designated Place | Hocking | ... | ... | 381 | o |
| Hayesville | Village | Ashland | 444 | 347 | 448 | o |
| Heath | City | Licking | 7,309 | 8,677 | 10,310 | o |
| Hebron | Village | Licking | 2,168 | 2,038 | 2,336 | o |
| Helena | Village | Sandusky | 261 | 236 | 224 | o |
| Hemlock | Village | Perry | 188 | 142 | 155 | o |
| Hessville | Census-Designated Place | Sandusky | ... | ... | 214 | o |
| Hicksville | Village | Defiance | 3,581 | 3,649 | 3,581 | o |
| Hide-A-Way Hills | Census-Designated Place | Hocking | ... | ... | 794 | o |
| Higginsport | Village | Brown | 298 | 291 | 251 | o |
| Highland | Village | Highland | 274 | 283 | 254 | o |
| Highland Heights | City | Cuyahoga | 6,265 | 8,082 | 8,345 | o |
| Highland Hills | Village | Cuyahoga | 1,726 | 1,619 | 1,130 | o |
| Highland Holiday | Census-Designated Place | Highland | ... | ... | 550 | o |
| Highpoint | Census-Designated Place | Hamilton | ... | ... | 1,503 | o |
| Hilliard | City | Franklin | 12,179 | 24,287 | 28,435 | o |
| Hills and Dales | Village | Stark | 297 | 260 | 221 | o |
| Hillsboro | City | Highland | 6,255 | 6,391 | 6,605 | o |
| Hilltop | Census-Designated Place | Trumbull | ... | 534 | 532 | o |
| Hiram | Village | Portage | 1,357 | 1,242 | 1,406 | o |
| Hockingport | Census-Designated Place | Athens | ... | ... | 212 | o |
| Holgate | Village | Henry | 1,290 | 1,211 | 1,109 | o |
| Holiday City | Village | Williams | ... | 75 | 52 | o |
| Holiday Lakes | Census-Designated Place | Huron | ... | ... | 749 | o |
| Holiday Valley | Census-Designated Place | Clark | ... | ... | 1,510 | o |
| Holland | Village | Lucas | 1,192 | 1,306 | 1,764 | o |
| Hollansburg | Village | Darke | 293 | 214 | 227 | o |
| Holloway | Village | Belmont | 333 | 348 | 338 | o |
| Holmesville | Village | Holmes | 419 | 386 | 372 | o |
| Homeworth | Census-Designated Place | Columbiana | ... | ... | 481 | o |
| Hooven | Census-Designated Place | Hamilton | ... | ... | 534 | o |
| Hopedale | Village | Harrison | 861 | 968 | 950 | o |
| Howard | Census-Designated Place | Knox | ... | ... | 242 | o |
| Howland Center | Census-Designated Place | Trumbull | 6,732 | 6,481 | 6,351 | o |
| Hoytville | Village | Wood | 294 | 296 | 303 | o |
| Hubbard | City | Trumbull | 8,313 | 8,288 | 7,874 | o |
| Huber Heights | City | 38,675 | 38,251 | 38,101 | o | |
| Huber Ridge | Census-Designated Place | Franklin | 5,255 | 4,883 | 4,604 | o |
| Hudson | City | Summit | 17,108 | 22,439 | 22,262 | o |
| Hunter | Census-Designated Place | Warren | ... | 1,737 | 2,100 | o |
| Hunting Valley | Village | 778 | 735 | 705 | o | |
| Huntsville | Village | Logan | 353 | 443 | 431 | o |
| Huron | City | Erie | 7,211 | 7,943 | 7,149 | o |
| Iberia | Census-Designated Place | Morrow | ... | ... | 452 | o |
| Independence | City | Cuyahoga | 6,285 | 7,109 | 7,133 | o |
| Irondale | Village | Jefferson | 382 | 420 | 387 | o |
| Ironton | City | Lawrence | 13,006 | 11,310 | 11,129 | o |
| Ithaca | Village | Darke | 95 | 102 | 136 | o |
| Jackson | City | Jackson | 6,082 | 6,220 | 6,397 | o |
| Jackson Center | Village | Shelby | 1,410 | 1,378 | 1,462 | o |
| Jacksonburg | Village | Butler | 61 | 67 | 63 | o |
| Jacksonville | Village | Athens | 544 | 549 | 481 | o |
| Jamestown | Village | Greene | 1,828 | 1,919 | 1,993 | o |
| Jefferson | Village | Ashtabula | 3,339 | 3,570 | 3,120 | o |
| Jeffersonville | Village | Fayette | 1,316 | 1,288 | 1,203 | o |
| Jenera | Village | Hancock | 275 | 234 | 221 | o |
| Jeromesville | Village | Ashland | 575 | 478 | 562 | o |
| Jerry City | Village | Wood | 512 | 453 | 427 | o |
| Jerusalem | Village | Monroe | 177 | 152 | 161 | o |
| Jewett | Village | Harrison | 780 | 784 | 692 | o |
| Johnstown | Village | Licking | 3,268 | 3,467 | 4,632 | o |
| Junction City | Village | Perry | 770 | 818 | 819 | o |
| Kalida | Village | Putnam | ... | 1,165 | 1,542 | o |
| Kanauga | Census-Designated Place | Gallia | ... | ... | 175 | o |
| Kansas | Census-Designated Place | Seneca | ... | ... | 179 | o |
| Kelleys Island | Village | Erie | 172 | 367 | 312 | o |
| Kent | City | Portage | 28,852 | 28,161 | 28,904 | o |
| Kenton | City | Hardin | 8,259 | 8,363 | 8,262 | o |
| Kenwood | Census-Designated Place | Hamilton | 7,469 | 7,423 | 6,981 | o |
| Kettering | City | 60,410 | 57,760 | 56,163 | o | |
| Kettlersville | Village | Shelby | 197 | 175 | 179 | o |
| Kidron | Census-Designated Place | Wayne | ... | ... | 944 | o |
| Kilbourne | Census-Designated Place | Delaware | ... | ... | 139 | o |
| Killbuck | Village | Holmes | 790 | 856 | 817 | o |
| Kimbolton | Census-Designated Place | Guernsey | ... | ... | 144 | o |
| Kings Mills | Census-Designated Place | Warren | ... | ... | 1,319 | o |
| Kingston | Village | Ross | 1,155 | 1,032 | 1,032 | o |
| Kinsman Center | Census-Designated Place | Trumbull | ... | ... | 616 | o |
| Kipton | Village | Lorain | 276 | 265 | 243 | o |
| Kirby | Village | Wyandot | 155 | 132 | 118 | o |
| Kirkersville | Village | Licking | ... | 538 | 525 | o |
| Kirtland | City | Lake | 5,937 | 6,681 | 6,866 | o |
| Kirtland Hills | Village | Lake | 480 | 591 | 646 | o |
| Kunkle | Census-Designated Place | Williams | ... | ... | 246 | o |
| La Croft | Census-Designated Place | Columbiana | 1,427 | 1,307 | 1,144 | o |
| La Rue | Village | Marion | 822 | 775 | 747 | o |
| Lafayette | Village | Allen | 449 | 306 | 445 | o |
| Lafayette | Census-Designated Place | Madison | ... | ... | 202 | o |
| Lafferty | Census-Designated Place | Belmont | ... | ... | 304 | o |
| Lagrange | Village | Lorain | 1,228 | 1,851 | 2,103 | o |
| Lake Buckhorn | Census-Designated Place | Holmes | ... | ... | 601 | o |
| Lake Darby | Census-Designated Place | Franklin | 2,798 | 3,727 | 4,592 | o |
| Lake Lakengren | Census-Designated Place | Preble | ... | ... | 3,383 | o |
| Lake Lorelei | Census-Designated Place | Brown | ... | ... | 1,170 | o |
| Lake Mohawk | Census-Designated Place | Carroll | ... | ... | 1,652 | o |
| Lake Seneca | Census-Designated Place | Williams | ... | ... | 465 | o |
| Lake Tomahawk | Census-Designated Place | Columbiana | ... | ... | 485 | o |
| Lake Waynoka | Census-Designated Place | Brown | ... | ... | 1,173 | o |
| Lakeline | Village | Lake | 208 | 165 | 226 | o |
| Lakemore | Village | Summit | 2,680 | 2,561 | 3,068 | o |
| Lakeside | Census-Designated Place | Ottawa | ... | ... | 694 | o |
| Lakeview | Village | Logan | 986 | 1,074 | 1,072 | o |
| Lakewood | City | Cuyahoga | 59,649 | 56,647 | 52,131 | o |
| Lancaster | City | Fairfield | 34,570 | 35,877 | 38,780 | o |
| Landen | Census-Designated Place | Warren | ... | ... | 6,782 | o |
| Lansing | Census-Designated Place | Belmont | ... | ... | 634 | o |
| Latty | Village | Paulding | 205 | 200 | 193 | o |
| Laura | Village | Miami | 509 | 487 | 474 | o |
| Laurelville | Village | Hocking | 602 | 533 | 527 | o |
| Leavittsburg | Census-Designated Place | Trumbull | ... | 2,200 | 1,973 | o |
| Lebanon | City | Warren | 10,791 | 17,034 | 20,033 | o |
| Leesburg | Village | Highland | 1,083 | 1,270 | 1,314 | o |
| Leesville | Village | Carroll | 155 | 184 | 158 | o |
| Leetonia | Village | Columbiana | 2,093 | 2,021 | 1,959 | o |
| Leipsic | Village | Putnam | 2,186 | 2,239 | 2,093 | o |
| Lewisburg | Village | Preble | 1,601 | 1,799 | 1,820 | o |
| Lewistown | Census-Designated Place | Logan | ... | ... | 222 | o |
| Lewisville | Village | Monroe | 263 | 233 | 176 | o |
| Lexington | Village | Richland | 4,198 | 4,175 | 4,822 | o |
| Liberty Center | Village | Henry | 1,095 | 1,109 | 1,180 | o |
| Lima | City | Allen | ... | 41,795 | 38,771 | o |
| Limaville | Village | Stark | 158 | 193 | 151 | o |
| Lincoln Heights | Village | Hamilton | 4,790 | 4,113 | 3,286 | o |
| Lincoln Village | Census-Designated Place | Franklin | 9,958 | 9,482 | 9,032 | o |
| Lindsey | Village | Sandusky | 545 | 504 | 446 | o |
| Linndale | Village | Cuyahoga | 159 | 117 | 179 | o |
| Lisbon | Village | Columbiana | ... | 3,126 | 2,821 | o |
| Lithopolis | Village | Fairfield | ... | 650 | 1,106 | o |
| Little Hocking | Census-Designated Place | Washington | ... | ... | 263 | o |
| Lockbourne | Village | Franklin | 237 | 280 | 237 | o |
| Lockington | Village | Shelby | 216 | 208 | 141 | o |
| Lockland | Village | Hamilton | 4,272 | 3,707 | 3,449 | o |
| Lodi | Village | Medina | 3,064 | 3,072 | 2,746 | o |
| Logan | City | Hocking | ... | 6,996 | 7,152 | o |
| Logan Elm Village | Census-Designated Place | Pickaway | 1,287 | 1,062 | 1,118 | o |
| London | City | Madison | 7,894 | 8,781 | 9,904 | o |
| Lorain | City | Lorain | 71,326 | 68,656 | 64,097 | o |
| Lordstown | Village | Trumbull | 3,513 | 3,633 | 3,417 | o |
| Lore City | Village | Guernsey | 376 | 305 | 325 | o |
| Loudonville | Village | 2,953 | 2,944 | 2,641 | o | |
| Louisville | City | Stark | 8,229 | 8,932 | 9,186 | o |
| Loveland | City | 10,100 | 11,749 | 12,081 | o | |
| Loveland Park | Census-Designated Place | ... | ... | 1,523 | o | |
| Lowell | Village | Washington | 617 | 628 | 549 | o |
| Lowellville | Village | Mahoning | 1,351 | 1,281 | 1,155 | o |
| Lower Salem | Village | Washington | 103 | 109 | 86 | o |
| Lucas | Village | Richland | 741 | 634 | 615 | o |
| Lucasville | Census-Designated Place | Scioto | 1,575 | 1,588 | 2,757 | o |
| Luckey | Village | Wood | 853 | 998 | 1,012 | o |
| Ludlow Falls | Village | Miami | 235 | 210 | 208 | o |
| Lynchburg | Village | 1,252 | 1,354 | 1,499 | o | |
| Lyndhurst | City | Cuyahoga | 15,971 | 15,291 | 14,001 | o |
| Lyons | Village | Fulton | 567 | 559 | 562 | o |
| Macedonia | City | Summit | 7,460 | 9,224 | 11,188 | o |
| Mack | Census-Designated Place | Hamilton | ... | ... | 11,585 | o |
| Macksburg | Village | Washington | 218 | 202 | 186 | o |
| Madeira | City | Hamilton | 9,018 | 8,923 | 8,726 | o |
| Madison | Village | Lake | 2,392 | 2,924 | 3,184 | o |
| Magnetic Springs | Village | Union | 379 | 323 | 268 | o |
| Magnolia | Village | 898 | 931 | 978 | o | |
| Maineville | Village | Warren | 355 | 891 | 975 | o |
| Malinta | Village | Henry | 300 | 285 | 265 | o |
| Malta | Village | Morgan | 800 | 696 | 671 | o |
| Malvern | Village | Carroll | 1,216 | 1,218 | 1,189 | o |
| Manchester | Village | Adams | 2,317 | 2,086 | 2,023 | o |
| Mansfield | City | Richland | ... | 51,796 | 47,821 | o |
| Mantua | Village | Portage | 1,125 | 1,046 | 1,043 | o |
| Maple Heights | City | Cuyahoga | 27,089 | 26,156 | 23,138 | o |
| Maple Ridge | Census-Designated Place | Mahoning | ... | ... | 761 | o |
| Maplewood Park | Census-Designated Place | Trumbull | ... | 321 | 280 | o |
| Marble Cliff | Village | Franklin | 633 | 646 | 573 | o |
| Marblehead | Village | Ottawa | ... | 852 | 903 | o |
| Marengo | Village | Morrow | 295 | 297 | 342 | o |
| Mariemont | Village | Hamilton | 3,053 | 3,408 | 3,403 | o |
| Marietta | City | Washington | 15,308 | 14,660 | 14,085 | o |
| Marion | City | Marion | ... | 37,402 | 36,837 | o |
| Marne | Census-Designated Place | Licking | ... | ... | 783 | o |
| Marseilles | Village | Wyandot | 107 | 124 | 112 | o |
| Marshallville | Village | Wayne | 768 | 831 | 756 | o |
| Martins Ferry | City | Belmont | 8,079 | 7,088 | 6,915 | o |
| Martinsburg | Village | Knox | 226 | 185 | 237 | o |
| Martinsville | Village | Clinton | 469 | 440 | 463 | o |
| Marysville | City | Union | 10,317 | 16,182 | 22,094 | o |
| Mason | City | Warren | 11,466 | 22,160 | 30,712 | o |
| Massillon | City | Stark | 31,136 | 31,580 | 32,149 | o |
| Masury | Census-Designated Place | Trumbull | ... | ... | 2,064 | o |
| Matamoras | Village | Washington | 1,018 | 957 | 896 | o |
| Maumee | City | Lucas | 15,774 | 15,074 | 14,286 | o |
| Mayfield | Village | Cuyahoga | 3,469 | 3,435 | 3,460 | o |
| Mayfield Heights | City | Cuyahoga | 19,844 | 19,386 | 19,155 | o |
| McArthur | Village | Vinton | 1,818 | 1,894 | 1,701 | o |
| McClure | Village | Henry | 807 | 761 | 725 | o |
| McComb | Village | Hancock | 1,538 | 1,681 | 1,648 | o |
| McConnelsville | Village | Morgan | 1,803 | 1,670 | 1,784 | o |
| McCutchenville | Census-Designated Place | Seneca | ... | ... | 400 | o |
| McDermott | Census-Designated Place | Scioto | ... | ... | 434 | o |
| McDonald | Village | Trumbull | 3,547 | 3,481 | 3,263 | o |
| McGuffey | Village | Hardin | 560 | 522 | 501 | o |
| McKinley Heights | Census-Designated Place | Trumbull | ... | ... | 1,060 | o |
| Mechanicsburg | Village | Champaign | 1,800 | 1,745 | 1,644 | o |
| Medina | City | Medina | 19,269 | 25,175 | 26,678 | o |
| Melmore | Census-Designated Place | Seneca | ... | ... | 153 | o |
| Melrose | Village | Paulding | 307 | 322 | 275 | o |
| Mendon | Village | Mercer | 717 | 704 | 662 | o |
| Mentor | City | Lake | 47,539 | 50,284 | 47,159 | o |
| Mentor-on-the-Lake | City | Lake | 8,253 | 8,127 | 7,443 | o |
| Metamora | Village | Fulton | 554 | 578 | 627 | o |
| Meyers Lake | Village | Stark | 496 | 565 | 569 | o |
| Miami Heights | Census-Designated Place | Hamilton | ... | ... | 4,731 | o |
| Miamisburg | City | Montgomery | 18,146 | 19,534 | 20,181 | o |
| Miamitown | Census-Designated Place | Hamilton | ... | ... | 1,259 | o |
| Miamiville | Census-Designated Place | Clermont | ... | ... | 242 | o |
| Middle Point | Village | Van Wert | 701 | 593 | 576 | o |
| Middleburg Heights | City | Cuyahoga | 14,734 | 15,542 | 15,946 | o |
| Middlefield | Village | Geauga | 1,923 | 2,281 | 2,694 | o |
| Middleport | Village | Meigs | 2,756 | 2,523 | 2,530 | o |
| Middletown | City | 51,863 | 51,601 | 48,694 | o | |
| Midland | Village | Clinton | 308 | 265 | 315 | o |
| Midvale | Village | Tuscarawas | ... | 570 | 754 | o |
| Midway | Village | Madison | 291 | 274 | 322 | o |
| Mifflin | Village | Ashland | 157 | 144 | 137 | o |
| Milan | Village | 1,487 | 1,445 | 1,367 | o | |
| Milford | City | 5,558 | 6,285 | 6,709 | o | |
| Milford Center | Village | Union | ... | 668 | 792 | o |
| Millbury | Village | Wood | 1,104 | 1,161 | 1,200 | o |
| Milledgeville | Village | Fayette | 132 | 122 | 112 | o |
| Miller City | Village | Putnam | 172 | 138 | 137 | o |
| Millersburg | Village | Holmes | 3,089 | 3,367 | 3,025 | o |
| Millersport | Village | Fairfield | ... | 928 | 1,044 | o |
| Millfield | Census-Designated Place | Athens | ... | ... | 341 | o |
| Millville | Village | Butler | 846 | 817 | 708 | o |
| Milton Center | Village | Wood | 198 | 195 | 144 | o |
| Miltonsburg | Village | Monroe | 31 | 29 | 43 | o |
| Mineral City | Village | Tuscarawas | 784 | 841 | 727 | o |
| Mineral Ridge | Census-Designated Place | 3,928 | 3,900 | 3,892 | o | |
| Minerva | Village | 4,158 | 3,934 | 3,720 | o | |
| Minerva Park | Village | Franklin | 1,354 | 1,291 | 1,272 | o |
| Minford | Census-Designated Place | Scioto | ... | ... | 693 | o |
| Mingo Junction | Village | Jefferson | 4,159 | 3,640 | 3,454 | o |
| Minster | Village | Auglaize | 2,676 | 2,794 | 2,805 | o |
| Mogadore | Village | 3,986 | 3,895 | 3,853 | o | |
| Monfort Heights | Census-Designated Place | Hamilton | ... | ... | 11,948 | o |
| Monroe | City | 5,996 | 7,197 | 12,442 | o | |
| Monroeville | Village | Huron | 1,381 | 1,433 | 1,400 | o |
| Montezuma | Village | Mercer | 194 | 191 | 165 | o |
| Montgomery | City | Hamilton | 10,242 | 10,163 | 10,251 | o |
| Montpelier | Village | Williams | 4,292 | 4,324 | 4,072 | o |
| Montrose-Ghent | Census-Designated Place | Summit | 4,906 | 5,261 | 5,177 | o |
| Moraine | City | Montgomery | 6,342 | 6,868 | 6,307 | o |
| Moreland Hills | Village | Cuyahoga | 3,377 | 3,298 | 3,320 | o |
| Morgandale | Census-Designated Place | Trumbull | ... | ... | 1,224 | o |
| Morral | Village | Marion | 419 | 388 | 399 | o |
| Morristown | Village | Belmont | 350 | 299 | 303 | o |
| Morrow | Village | Warren | ... | 1,403 | 1,188 | o |
| Moscow | Village | Clermont | 280 | 244 | 185 | o |
| Mount Blanchard | Village | Hancock | 497 | 484 | 492 | o |
| Mount Carmel | Census-Designated Place | Clermont | ... | ... | 4,741 | o |
| Mount Cory | Village | Hancock | 245 | 201 | 204 | o |
| Mount Eaton | Village | Wayne | 251 | 246 | 241 | o |
| Mount Gilead | Village | Morrow | ... | 3,434 | 3,660 | o |
| Mount Healthy | City | Hamilton | ... | 6,335 | 6,098 | o |
| Mount Healthy Heights | Census-Designated Place | Hamilton | 3,863 | 3,450 | 3,264 | o |
| Mount Orab | Village | Brown | ... | 2,557 | 3,664 | o |
| Mount Pleasant | Village | Jefferson | 492 | 535 | 478 | o |
| Mount Repose | Census-Designated Place | Clermont | ... | 4,102 | 4,672 | o |
| Mount Sterling | Village | Madison | ... | 1,999 | 1,782 | o |
| Mount Vernon | City | Knox | ... | 15,747 | 16,990 | o |
| Mount Victory | Village | Hardin | 540 | 600 | 627 | o |
| Mowrystown | Village | Highland | 465 | 373 | 360 | o |
| Mulberry | Census-Designated Place | Clermont | 2,856 | 3,139 | 3,323 | o |
| Munroe Falls | City | Summit | 5,295 | 5,314 | 5,012 | o |
| Murray City | Village | Hocking | 499 | 452 | 449 | o |
| Mutual | Village | Champaign | 120 | 132 | 104 | o |
| Napoleon | City | Henry | 9,064 | 9,323 | 8,749 | o |
| Nashville | Village | Holmes | 181 | 172 | 197 | o |
| Navarre | Village | Stark | ... | 1,968 | 1,957 | o |
| Neapolis | Census-Designated Place | Lucas | ... | ... | 423 | o |
| Neffs | Census-Designated Place | Belmont | 1,213 | 1,138 | 993 | o |
| Negley | Census-Designated Place | Columbiana | ... | ... | 281 | o |
| Nellie | Village | Coshocton | 91 | 134 | 131 | o |
| Nelsonville | City | Athens | 4,938 | 5,287 | 5,392 | o |
| Nevada | Village | Wyandot | 862 | 814 | 760 | o |
| Neville | Village | Clermont | 218 | 127 | 100 | o |
| New Albany | Village | Franklin | 1,612 | 3,786 | 7,724 | o |
| New Alexandria | Village | Jefferson | 346 | 222 | 272 | o |
| New Athens | Village | Harrison | 378 | 342 | 320 | o |
| New Baltimore | Census-Designated Place | Hamilton | ... | ... | 661 | o |
| New Bavaria | Village | Henry | 92 | 78 | 99 | o |
| New Bloomington | Village | Marion | 255 | 548 | 515 | o |
| New Boston | Village | Scioto | 2,788 | 2,340 | 2,272 | o |
| New Bremen | Village | Auglaize | 2,666 | 2,921 | 2,978 | o |
| New Burlington | Census-Designated Place | Hamilton | ... | ... | 5,069 | o |
| New California | Census-Designated Place | Union | ... | ... | 1,411 | o |
| New Carlisle | City | Clark | 6,048 | 5,872 | 5,785 | o |
| New Concord | Village | Muskingum | 2,281 | 2,658 | 2,491 | o |
| New Franklin | City | Summit | ... | 14,499 | 14,227 | o |
| New Hampshire | Census-Designated Place | Auglaize | ... | ... | 174 | o |
| New Haven | Census-Designated Place | Hamilton | ... | ... | 583 | o |
| New Haven | Census-Designated Place | Huron | ... | ... | 399 | o |
| New Holland | Village | 841 | 785 | 801 | o | |
| New Knoxville | Village | Auglaize | 844 | 891 | 879 | o |
| New Lebanon | Village | Montgomery | 4,261 | 4,239 | 3,995 | o |
| New Lexington | Village | Perry | 5,070 | 4,644 | 4,731 | o |
| New London | Village | Huron | 2,646 | 2,696 | 2,461 | o |
| New Madison | Village | Darke | 930 | 817 | 892 | o |
| New Marshfield | Census-Designated Place | Athens | ... | ... | 326 | o |
| New Miami | Village | Butler | 2,550 | 2,469 | 2,249 | o |
| New Middletown | Village | Mahoning | 1,903 | 1,648 | 1,621 | o |
| New Paris | Village | Preble | 1,804 | 1,658 | 1,629 | o |
| New Philadelphia | City | Tuscarawas | 16,576 | 17,081 | 17,288 | o |
| New Pittsburg | Census-Designated Place | Wayne | ... | ... | 388 | o |
| New Richmond | Village | Clermont | 2,561 | 2,210 | 2,582 | o |
| New Riegel | Village | Seneca | 292 | 226 | 249 | o |
| New Straitsville | Village | Perry | 868 | 774 | 722 | o |
| New Vienna | Village | Clinton | 921 | 1,296 | 1,224 | o |
| New Washington | Village | Crawford | 1,036 | 988 | 967 | o |
| New Waterford | Village | Columbiana | 1,282 | 1,391 | 1,238 | o |
| New Weston | Village | Darke | 152 | 135 | 136 | o |
| Newark | City | Licking | 44,902 | 46,380 | 47,573 | o |
| Newburgh Heights | Village | Cuyahoga | 2,370 | 2,389 | 2,167 | o |
| Newcomerstown | Village | Tuscarawas | 4,109 | 4,001 | 3,822 | o |
| Newport | Census-Designated Place | Shelby | ... | ... | 198 | o |
| Newport | Census-Designated Place | Washington | ... | ... | 1,003 | o |
| Newton Falls | City | Trumbull | 4,995 | 5,004 | 4,795 | o |
| Newtonsville | Village | Clermont | ... | 515 | 392 | o |
| Newtown | Village | Hamilton | 1,596 | 2,420 | 2,672 | o |
| Ney | Village | Defiance | 331 | 364 | 354 | o |
| Niles | City | Trumbull | 20,985 | 20,932 | 19,266 | o |
| North Baltimore | Village | Wood | 3,162 | 3,363 | 3,432 | o |
| North Bend | Village | Hamilton | 504 | 603 | 857 | o |
| North Canton | City | Stark | 15,360 | 16,721 | 17,488 | o |
| North College Hill | City | Hamilton | 10,979 | 10,082 | 9,397 | o |
| North Fairfield | Village | Huron | 590 | 573 | 560 | o |
| North Hampton | Village | Clark | 417 | 370 | 478 | o |
| North Kingsville | Village | Ashtabula | 2,345 | 2,658 | 2,923 | o |
| North Lawrence | Census-Designated Place | Stark | ... | ... | 268 | o |
| North Lewisburg | Village | Champaign | 1,160 | 1,613 | 1,490 | o |
| North Madison | Census-Designated Place | Lake | 8,699 | 8,451 | 8,547 | o |
| North Olmsted | City | Cuyahoga | 34,206 | 34,113 | 32,718 | o |
| North Perry | Village | Lake | 832 | 838 | 893 | o |
| North Randall | Village | Cuyahoga | 976 | 906 | 1,027 | o |
| North Ridgeville | City | Lorain | 21,546 | 22,338 | 29,465 | o |
| North Robinson | Village | Crawford | 217 | 211 | 205 | o |
| North Royalton | City | Cuyahoga | 23,184 | 28,648 | 30,444 | o |
| North Star | Village | Darke | 257 | 209 | 236 | o |
| North Zanesville | Census-Designated Place | Muskingum | ... | 3,013 | 2,816 | o |
| Northbrook | Census-Designated Place | Hamilton | 11,471 | 11,076 | 10,668 | o |
| Northfield | Village | Summit | 3,631 | 3,827 | 3,677 | o |
| Northgate | Census-Designated Place | Hamilton | 7,864 | 8,016 | 7,377 | o |
| Northridge | Census-Designated Place | Clark | 5,939 | 6,853 | 7,572 | o |
| Northwood | City | Wood | 5,606 | 5,488 | 5,265 | o |
| Norton | City | 11,454 | 11,521 | 12,085 | o | |
| Norwalk | City | Huron | 14,942 | 16,602 | 17,012 | o |
| Norwich | Village | Muskingum | 127 | 113 | 102 | o |
| Norwood | City | Hamilton | 23,606 | 21,675 | 19,207 | o |
| Oak Harbor | Village | Ottawa | 2,691 | 2,858 | 2,759 | o |
| Oak Hill | Village | Jackson | 1,673 | 1,680 | 1,551 | o |
| Oakwood | Village | Cuyahoga | 3,385 | 3,667 | 3,667 | o |
| Oakwood | City | Montgomery | 8,995 | 9,215 | 9,202 | o |
| Oakwood | Village | Paulding | 711 | 607 | 608 | o |
| Oberlin | City | Lorain | 8,279 | 8,268 | 8,286 | o |
| Obetz | Village | Franklin | 3,158 | 4,075 | 4,532 | o |
| Oceola | Census-Designated Place | Crawford | ... | ... | 190 | o |
| Octa | Village | Fayette | 77 | 83 | 59 | o |
| Ohio City | Village | Van Wert | ... | 815 | 705 | o |
| Old Fort | Census-Designated Place | Seneca | ... | ... | 186 | o |
| Old Washington | Village | Guernsey | 285 | 265 | 279 | o |
| Olde West Chester | Census-Designated Place | Butler | ... | 232 | 240 | o |
| Olmsted Falls | City | Cuyahoga | 6,743 | 7,962 | 9,024 | o |
| Ontario | City | Richland | 4,092 | 5,319 | 6,225 | o |
| Orange | Village | Cuyahoga | 2,819 | 3,236 | 3,323 | o |
| Orangeville | Village | Trumbull | 248 | 189 | 197 | o |
| Oregon | City | Lucas | 18,362 | 19,355 | 20,291 | o |
| Orient | Village | Pickaway | 277 | 269 | 270 | o |
| Orrville | City | Wayne | 7,987 | 8,571 | 8,380 | o |
| Orwell | Village | Ashtabula | 1,241 | 1,539 | 1,660 | o |
| Osgood | Village | Darke | 348 | 255 | 302 | o |
| Ostrander | Village | Delaware | 445 | 417 | 643 | o |
| Ottawa | Village | Putnam | ... | 4,549 | 4,460 | o |
| Ottawa Hills | Village | Lucas | 4,557 | 4,564 | 4,517 | o |
| Ottoville | Village | Putnam | 825 | 888 | 976 | o |
| Otway | Village | Scioto | 100 | 86 | 87 | o |
| Owensville | Village | Clermont | ... | 877 | 794 | o |
| Oxford | City | Butler | 20,864 | 21,977 | 21,371 | o |
| Painesville | City | Lake | 15,619 | 17,653 | 19,563 | o |
| Palestine | Village | Darke | 184 | 170 | 200 | o |
| Pancoastburg | Census-Designated Place | Fayette | ... | ... | 87 | o |
| Pandora | Village | Putnam | 1,003 | 1,188 | 1,153 | o |
| Park Layne | Census-Designated Place | Clark | 4,795 | 4,519 | 4,343 | o |
| Parma | City | Cuyahoga | 87,650 | 85,655 | 81,601 | o |
| Parma Heights | City | Cuyahoga | 21,627 | 21,659 | 20,718 | o |
| Parral | Village | Tuscarawas | 246 | 241 | 218 | o |
| Pataskala | City | Licking | 7,415 | 10,076 | 14,962 | o |
| Patterson | Village | Hardin | 127 | 138 | 139 | o |
| Paulding | Village | Paulding | 3,307 | 3,598 | 3,605 | o |
| Payne | Village | Paulding | ... | 1,225 | 1,194 | o |
| Peebles | Village | Adams | 1,796 | 1,739 | 1,782 | o |
| Pemberville | Village | Wood | 1,299 | 1,371 | 1,371 | o |
| Peninsula | Village | Summit | 569 | 602 | 565 | o |
| Pepper Pike | City | Cuyahoga | 6,084 | 6,039 | 5,979 | o |
| Perry | Village | Lake | 1,139 | 1,195 | 1,663 | o |
| Perry Heights | Census-Designated Place | Stark | 9,055 | 8,900 | 8,441 | o |
| Perrysburg | City | Wood | ... | 17,685 | 20,623 | o |
| Perrysville | Village | Ashland | 853 | 816 | 735 | o |
| Pettisville | Census-Designated Place | Fulton | ... | ... | 498 | o |
| Pheasant Run | Census-Designated Place | Lorain | ... | ... | 1,397 | o |
| Phillipsburg | Village | Montgomery | 643 | 628 | 557 | o |
| Philo | Village | Muskingum | 801 | 769 | 733 | o |
| Pickerington | City | 5,768 | 10,071 | 18,291 | o | |
| Pigeon Creek | Census-Designated Place | Summit | 1,008 | 945 | 882 | o |
| Piketon | Village | Pike | 1,704 | 1,925 | 2,181 | o |
| Pioneer | Village | Williams | 1,284 | 1,466 | 1,380 | o |
| Piqua | City | Miami | 20,759 | 20,799 | 20,522 | o |
| Pitsburg | Village | Darke | 420 | 392 | 388 | o |
| Plain City | Village | 2,288 | 2,840 | 4,225 | o | |
| Plainfield | Village | Coshocton | 165 | 158 | 157 | o |
| Plainville | Census-Designated Place | Hamilton | ... | ... | 87 | o |
| Pleasant City | Village | Guernsey | 418 | 439 | 447 | o |
| Pleasant Grove | Census-Designated Place | Muskingum | 2,001 | 2,016 | 1,742 | o |
| Pleasant Hill | Village | Miami | 1,074 | 1,146 | 1,200 | o |
| Pleasant Hills | Census-Designated Place | Hamilton | ... | ... | 606 | o |
| Pleasant Plain | Village | Warren | 142 | 156 | 154 | o |
| Pleasant Run | Census-Designated Place | Hamilton | 4,964 | 5,267 | 4,953 | o |
| Pleasant Run Farm | Census-Designated Place | Hamilton | 4,545 | 4,731 | 4,654 | o |
| Pleasantville | Village | Fairfield | 952 | 877 | 960 | o |
| Plumwood | Census-Designated Place | Madison | ... | ... | 319 | o |
| Plymouth | Village | 2,005 | 1,893 | 1,857 | o | |
| Poland | Village | Mahoning | 2,928 | 2,876 | 2,555 | o |
| Polk | Village | Ashland | 347 | 357 | 336 | o |
| Pomeroy | Village | Meigs | 2,437 | 1,954 | 1,852 | o |
| Port Clinton | City | Ottawa | 7,018 | 6,391 | 6,056 | o |
| Port Jefferson | Village | Shelby | ... | 333 | 371 | o |
| Port Washington | Village | Tuscarawas | 515 | 552 | 569 | o |
| Port William | Village | Clinton | 245 | 258 | 254 | o |
| Portage | Village | Wood | 469 | 424 | 438 | o |
| Portage Lakes | Census-Designated Place | Summit | ... | ... | 6,968 | o |
| Portsmouth | City | Scioto | 23,514 | 20,909 | 20,226 | o |
| Potsdam | Village | Miami | 232 | 203 | 288 | o |
| Pottery Addition | Census-Designated Place | Jefferson | ... | ... | 293 | o |
| Powell | City | Delaware | 2,132 | 6,277 | 11,500 | o |
| Powhatan Point | Village | Belmont | 1,856 | 1,737 | 1,592 | o |
| Proctorville | Village | Lawrence | 1,843 | 620 | 574 | o |
| Prospect | Village | Marion | 1,116 | 1,193 | 1,112 | o |
| Pulaski | Census-Designated Place | Williams | ... | ... | 132 | o |
| Put-in-Bay | Village | Ottawa | 177 | 130 | 138 | o |
| Quaker City | Village | Guernsey | 570 | 563 | 502 | o |
| Quincy | Village | Logan | 691 | 734 | 706 | o |
| Racine | Village | Meigs | 731 | 753 | 675 | o |
| Radnor | Census-Designated Place | Delaware | ... | ... | 201 | o |
| Rarden | Village | Scioto | 204 | 176 | 159 | o |
| Ravenna | City | Portage | 11,992 | 11,818 | 11,724 | o |
| Rawson | Village | Hancock | 468 | 465 | 570 | o |
| Rayland | Village | Jefferson | 281 | 434 | 417 | o |
| Raymond | Census-Designated Place | Union | ... | ... | 257 | o |
| Reading | City | Hamilton | 11,980 | 11,292 | 10,385 | o |
| Reminderville | Village | Summit | ... | 2,477 | 3,404 | o |
| Remington | Census-Designated Place | Hamilton | ... | ... | 328 | o |
| Rendville | Village | Perry | 34 | 46 | 36 | o |
| Reno | Census-Designated Place | Washington | ... | ... | 1,293 | o |
| Republic | Village | Seneca | 607 | 614 | 549 | o |
| Reynoldsburg | City | 26,162 | 32,129 | 35,893 | o | |
| Richfield | Village | Summit | ... | 3,474 | 3,648 | o |
| Richmond | Village | Jefferson | 714 | 476 | 481 | o |
| Richmond Dale | Census-Designated Place | Ross | ... | ... | 377 | o |
| Richmond Heights | City | Cuyahoga | 9,648 | 10,966 | 10,546 | o |
| Richville | Census-Designated Place | Stark | ... | ... | 3,324 | o |
| Richwood | Village | Union | 2,143 | 2,156 | 2,229 | o |
| Ridgeville Corners | Census-Designated Place | Henry | ... | ... | 435 | o |
| Ridgeway | Village | 372 | 354 | 338 | o | |
| Rio Grande | Village | Gallia | 993 | 931 | 830 | o |
| Ripley | Village | Brown | 1,811 | 1,763 | 1,750 | o |
| Risingsun | Village | Wood | 659 | 620 | 606 | o |
| Rittman | City | 6,135 | 6,400 | 6,491 | o | |
| Riverlea | Village | Franklin | 506 | 499 | 545 | o |
| Riverside | City | Montgomery | ... | 27,058 | 25,201 | o |
| Roaming Shores | Village | Ashtabula | 811 | 1,239 | 1,508 | o |
| Robertsville | Census-Designated Place | Stark | ... | ... | 331 | o |
| Rochester | Village | Lorain | 182 | 190 | 182 | o |
| Rock Creek | Village | Ashtabula | 534 | 584 | 529 | o |
| Rockbridge | Census-Designated Place | Hocking | ... | ... | 182 | o |
| Rockford | Village | Mercer | 1,136 | 1,122 | 1,120 | o |
| Rocky Fork Point | Census-Designated Place | Highland | ... | ... | 639 | o |
| Rocky Ridge | Village | Ottawa | 425 | 389 | 417 | o |
| Rocky River | City | Cuyahoga | 20,416 | 20,735 | 20,213 | o |
| Rogers | Village | Columbiana | 246 | 266 | 237 | o |
| Rome | Village | Adams | 87 | 117 | 94 | o |
| Rosemount | Census-Designated Place | Scioto | ... | 2,043 | 2,112 | o |
| Roseville | Village | 1,900 | 1,931 | 1,852 | o | |
| Rosewood | Census-Designated Place | Champaign | ... | ... | 257 | o |
| Ross | Census-Designated Place | Butler | ... | ... | 3,417 | o |
| Rossburg | Village | Darke | 246 | 224 | 201 | o |
| Rossford | City | Wood | 6,035 | 6,438 | 6,293 | o |
| Rossmoyne | Census-Designated Place | Hamilton | ... | ... | 2,230 | o |
| Roswell | Village | Tuscarawas | 317 | 276 | 219 | o |
| Rudolph | Census-Designated Place | Wood | ... | ... | 458 | o |
| Rushsylvania | Village | Logan | 570 | 543 | 516 | o |
| Rushville | Village | Fairfield | 284 | 261 | 302 | o |
| Russells Point | Village | Logan | 1,552 | 1,619 | 1,391 | o |
| Russellville | Village | Brown | 461 | 447 | 561 | o |
| Russia | Village | Shelby | 463 | 561 | 640 | o |
| Rutland | Village | Meigs | ... | 422 | 393 | o |
| Sabina | Village | Clinton | 2,713 | 2,780 | 2,564 | o |
| Salem | City | Columbiana | 12,459 | 12,568 | 12,303 | o |
| Salem Heights | Census-Designated Place | Hamilton | ... | ... | 3,839 | o |
| Salesville | Village | Guernsey | 102 | 154 | 129 | o |
| Salineville | Village | Columbiana | 1,434 | 1,397 | 1,311 | o |
| Sandusky | City | Erie | 29,571 | 27,844 | 25,793 | o |
| Sandyville | Census-Designated Place | Tuscarawas | ... | ... | 368 | o |
| Sarahsville | Village | Noble | 162 | 198 | 166 | o |
| Sardinia | Village | ... | 903 | 980 | o | |
| Sardis | Census-Designated Place | Monroe | ... | ... | 559 | o |
| Savannah | Village | Ashland | 352 | 374 | 413 | o |
| Sawyerwood | Census-Designated Place | Summit | ... | ... | 1,540 | o |
| Scio | Village | Harrison | 849 | 795 | 763 | o |
| Sciotodale | Census-Designated Place | Scioto | 1,128 | 982 | 1,081 | o |
| Scott | Village | 339 | 322 | 286 | o | |
| Seaman | Village | Adams | 965 | 1,044 | 944 | o |
| Sebring | Village | Mahoning | 4,848 | 5,030 | 4,420 | o |
| Senecaville | Village | Guernsey | 436 | 453 | 457 | o |
| Seven Hills | City | Cuyahoga | 12,551 | 12,080 | 11,804 | o |
| Seven Mile | Village | Butler | ... | 702 | 751 | o |
| Seville | Village | Medina | ... | 2,319 | 2,296 | o |
| Shadyside | Village | Belmont | 3,796 | 3,752 | 3,785 | o |
| Shaker Heights | City | Cuyahoga | 30,928 | 29,405 | 28,448 | o |
| Sharonville | City | 13,204 | 13,733 | 13,560 | o | |
| Shawnee | Census-Designated Place | Hamilton | ... | ... | 724 | o |
| Shawnee | Village | Perry | 726 | 616 | 655 | o |
| Shawnee Hills | Village | Delaware | ... | 436 | 681 | o |
| Shawnee Hills | Census-Designated Place | Greene | 2,199 | 2,355 | 2,171 | o |
| Sheffield | Village | Lorain | 2,021 | 2,949 | 3,982 | o |
| Sheffield Lake | City | Lorain | 9,825 | 9,371 | 9,137 | o |
| Shelby | City | Richland | 9,742 | 9,925 | 9,317 | o |
| Sherrodsville | Village | Carroll | 284 | 318 | 304 | o |
| Sherwood | Village | Defiance | 824 | 801 | 827 | o |
| Sherwood | Census-Designated Place | Hamilton | 3,709 | 3,907 | 3,719 | o |
| Shiloh | Village | Richland | 792 | 721 | 649 | o |
| Shreve | Village | Wayne | 1,591 | 1,582 | 1,514 | o |
| Sidney | City | Shelby | 18,957 | 20,335 | 21,229 | o |
| Silver Lake | Village | Summit | 3,041 | 3,019 | 2,519 | o |
| Silverton | City | Hamilton | 5,840 | 5,178 | 4,788 | o |
| Sinking Spring | Village | Highland | 176 | 158 | 133 | o |
| Sixteen Mile Stand | Census-Designated Place | Hamilton | ... | ... | 2,928 | o |
| Skyline Acres | Census-Designated Place | Hamilton | ... | ... | 1,717 | o |
| Smithfield | Village | Jefferson | 956 | 867 | 869 | o |
| Smithville | Village | Wayne | 1,354 | 1,333 | 1,252 | o |
| Solon | City | Cuyahoga | 18,636 | 21,802 | 23,348 | o |
| Somerset | Village | Perry | 1,383 | 1,549 | 1,481 | o |
| Somerville | Village | Butler | 266 | 294 | 281 | o |
| South Amherst | Village | Lorain | 1,546 | 1,863 | 1,688 | o |
| South Bloomfield | Village | Pickaway | 899 | 1,205 | 1,744 | o |
| South Canal | Census-Designated Place | Trumbull | 1,319 | 1,346 | 1,100 | o |
| South Charleston | Village | Clark | 1,628 | 1,850 | 1,693 | o |
| South Euclid | City | Cuyahoga | 24,188 | 23,516 | 22,295 | o |
| South Lebanon | Village | Warren | ... | 2,690 | 4,115 | o |
| South Point | Village | Lawrence | 3,734 | 3,765 | 3,958 | o |
| South Russell | Village | Geauga | 3,402 | 3,997 | 3,810 | o |
| South Salem | Village | Ross | 227 | 213 | 204 | o |
| South Solon | Village | Madison | 384 | 405 | 355 | o |
| South Vienna | Village | Clark | 484 | 471 | 384 | o |
| South Webster | Village | Scioto | 796 | 764 | 866 | o |
| South Zanesville | Village | Muskingum | 1,908 | 1,985 | 1,989 | o |
| Sparta | Village | Morrow | 187 | 191 | 161 | o |
| Spencer | Village | Medina | 742 | 747 | 753 | o |
| Spencerville | Village | Allen | 2,279 | 2,236 | 2,223 | o |
| Spring Valley | Village | Greene | 507 | 510 | 479 | o |
| Springboro | City | 6,834 | 12,393 | 17,409 | o | |
| Springdale | City | Hamilton | 10,540 | 10,563 | 11,223 | o |
| Springfield | City | Clark | 70,718 | 66,035 | 60,608 | o |
| St Johns | Census-Designated Place | Auglaize | ... | ... | 185 | o |
| St. Bernard | City | Hamilton | 5,289 | 4,924 | 4,368 | o |
| St. Clairsville | City | Belmont | 5,213 | 5,127 | 5,184 | o |
| St. Henry | Village | Mercer | 1,940 | 2,290 | 2,427 | o |
| St. Louisville | Village | Licking | 370 | 346 | 373 | o |
| St. Martin | Village | Brown | ... | 116 | 129 | o |
| St. Marys | City | Auglaize | 8,618 | 8,358 | 8,332 | o |
| St. Paris | Village | Champaign | 1,918 | 2,011 | 2,089 | o |
| Stafford | Village | Monroe | 85 | 86 | 81 | o |
| Sterling | Census-Designated Place | Wayne | ... | ... | 457 | o |
| Steubenville | City | Jefferson | ... | 19,886 | 18,659 | o |
| Stewart | Census-Designated Place | Athens | ... | ... | 247 | o |
| Stockdale | Census-Designated Place | Pike | ... | ... | 135 | o |
| Stockport | Village | Morgan | 462 | 540 | 503 | o |
| Stone Creek | Village | Tuscarawas | 181 | 184 | 177 | o |
| Stony Prairie | Census-Designated Place | Sandusky | ... | ... | 1,284 | o |
| Stony Ridge | Census-Designated Place | Wood | ... | ... | 411 | o |
| Stoutsville | Village | Fairfield | 524 | 568 | 560 | o |
| Stow | City | Summit | 27,652 | 32,139 | 34,837 | o |
| Strasburg | Village | Tuscarawas | 2,042 | 2,317 | 2,608 | o |
| Stratton | Village | Jefferson | ... | 290 | 294 | o |
| Streetsboro | City | Portage | 9,975 | 12,314 | 16,028 | o |
| Strongsville | City | Cuyahoga | 35,305 | 43,858 | 44,750 | o |
| Struthers | City | Mahoning | 12,400 | 11,756 | 10,713 | o |
| Stryker | Village | Williams | 1,515 | 1,406 | 1,335 | o |
| Sugar Bush Knolls | Village | Portage | 209 | 227 | 177 | o |
| Sugar Grove | Village | Fairfield | ... | 462 | 426 | o |
| Sugarcreek | Village | Tuscarawas | 2,246 | 2,181 | 2,220 | o |
| Sulphur Springs | Census-Designated Place | Crawford | ... | ... | 194 | o |
| Summerfield | Village | Noble | 285 | 296 | 254 | o |
| Summerside | Census-Designated Place | Clermont | ... | ... | 5,083 | o |
| Summitville | Village | Columbiana | 140 | 108 | 135 | o |
| Sunbury | Village | Delaware | 2,223 | 2,647 | 4,389 | o |
| Swanton | Village | ... | 3,472 | 3,690 | o | |
| Sycamore | Village | Wyandot | 923 | 914 | 861 | o |
| Sylvania | City | Lucas | 17,455 | 19,108 | 18,965 | o |
| Syracuse | Village | Meigs | 812 | 877 | 826 | o |
| Tallmadge | City | 14,835 | 16,388 | 17,537 | o | |
| Tarlton | Village | Pickaway | 315 | 298 | 282 | o |
| Taylor Creek | Census-Designated Place | Hamilton | ... | ... | 3,062 | o |
| Tedrow | Census-Designated Place | Fulton | ... | ... | 173 | o |
| Terrace Park | Village | Hamilton | 2,123 | 2,273 | 2,251 | o |
| The Plains | Census-Designated Place | Athens | 2,644 | 2,931 | 3,080 | o |
| The Village of Indian Hill | City | Hamilton | 5,500 | 5,907 | 5,785 | o |
| Thornport | Census-Designated Place | Perry | ... | ... | 1,004 | o |
| Thornville | Village | Perry | 768 | 738 | 991 | o |
| Thurston | Village | Fairfield | 550 | 555 | 604 | o |
| Tiffin | City | Seneca | 18,724 | 18,166 | 17,963 | o |
| Tiltonsville | Village | Jefferson | 1,522 | 1,329 | 1,372 | o |
| Timberlake | Village | Lake | 835 | 775 | 675 | o |
| Tipp City | City | Miami | 6,411 | 9,245 | 9,689 | o |
| Tippecanoe | Census-Designated Place | Harrison | ... | ... | 121 | o |
| Tiro | Village | Crawford | 246 | 281 | 280 | o |
| Toledo | City | Lucas | 332,832 | 313,784 | 287,208 | o |
| Tontogany | Village | Wood | 365 | 368 | 367 | o |
| Toronto | City | Jefferson | 6,140 | 5,676 | 5,091 | o |
| Tremont City | Village | Clark | 443 | 349 | 375 | o |
| Trenton | City | Butler | 6,280 | 8,796 | 11,869 | o |
| Trimble | Village | Athens | 435 | 461 | 390 | o |
| Trinway | Census-Designated Place | Muskingum | ... | ... | 365 | o |
| Trotwood | City | Montgomery | 29,432 | 27,432 | 24,431 | o |
| Troy | City | Miami | 19,540 | 22,077 | 25,058 | o |
| Tuppers Plains | Census-Designated Place | Meigs | ... | ... | 465 | o |
| Turpin Hills | Census-Designated Place | Hamilton | 4,927 | 4,960 | 5,099 | o |
| Tuscarawas | Village | Tuscarawas | 844 | 932 | 1,056 | o |
| Twinsburg | City | Summit | 9,668 | 17,032 | 18,795 | o |
| Twinsburg Heights | Census-Designated Place | Summit | ... | ... | 925 | o |
| Uhrichsville | City | Tuscarawas | 5,731 | 5,664 | 5,413 | o |
| Union | City | 5,345 | 5,699 | 6,419 | o | |
| Union City | Village | Darke | 1,996 | 1,769 | 1,666 | o |
| Uniontown | Census-Designated Place | Stark | 3,074 | 2,802 | 3,309 | o |
| Unionville Center | Village | Union | 237 | 299 | 233 | o |
| Uniopolis | Village | Auglaize | 256 | 256 | 222 | o |
| University Heights | City | Cuyahoga | 14,657 | 14,138 | 13,539 | o |
| Upper Arlington | City | Franklin | 34,292 | 33,686 | 33,771 | o |
| Upper Sandusky | City | Wyandot | 6,091 | 6,560 | 6,596 | o |
| Urbana | City | Champaign | 11,406 | 11,620 | 11,793 | o |
| Urbancrest | Village | Franklin | 853 | 869 | 960 | o |
| Utica | Village | 2,199 | 2,141 | 2,132 | o | |
| Valley Hi | Village | Logan | 52 | 244 | 212 | o |
| Valley View | Village | Cuyahoga | 2,137 | 2,179 | 2,034 | o |
| Valleyview | Village | Franklin | 604 | 601 | 620 | o |
| Van Buren | Village | Hancock | 336 | 313 | 328 | o |
| Van Wert | City | Van Wert | 11,012 | 10,907 | 10,846 | o |
| Vandalia | City | Montgomery | 14,191 | 14,654 | 15,246 | o |
| Vanlue | Village | Hancock | 371 | 371 | 359 | o |
| Vaughnsville | Census-Designated Place | Putnam | ... | ... | 262 | o |
| Venedocia | Village | Van Wert | 158 | 160 | 124 | o |
| Vermilion | City | 11,008 | 10,911 | 10,594 | o | |
| Verona | Village | ... | 485 | 494 | o | |
| Versailles | Village | Darke | 2,369 | 2,600 | 2,687 | o |
| Vickery | Census-Designated Place | Sandusky | ... | ... | 121 | o |
| Vienna Center | Census-Designated Place | Trumbull | ... | ... | 650 | o |
| Vincent | Census-Designated Place | Washington | ... | ... | 339 | o |
| Vinton | Village | Gallia | 347 | 324 | 222 | o |
| Wadsworth | City | Medina | 15,719 | 18,609 | 21,567 | o |
| Waite Hill | Village | Lake | 476 | 435 | 471 | o |
| Wakeman | Village | Huron | 942 | 933 | 1,047 | o |
| Walbridge | Village | Wood | ... | 3,103 | 3,019 | o |
| Waldo | Village | Marion | 336 | 332 | 338 | o |
| Walnut Creek | Census-Designated Place | Holmes | ... | ... | 878 | o |
| Walton Hills | Village | Cuyahoga | 2,371 | 2,398 | 2,281 | o |
| Wapakoneta | City | Auglaize | 9,534 | 9,548 | 9,867 | o |
| Warren | City | Trumbull | 50,890 | 48,238 | 41,557 | o |
| Warrensville Heights | City | Cuyahoga | 15,869 | 15,108 | 13,542 | o |
| Warsaw | Village | Coshocton | 772 | 781 | 682 | o |
| Washington Court House | City | Fayette | 12,996 | 13,609 | 14,192 | o |
| Washingtonville | Village | 859 | 789 | 801 | o | |
| Waterford | Census-Designated Place | Washington | ... | ... | 450 | o |
| Waterville | Village | Lucas | ... | 5,081 | 5,523 | o |
| Wauseon | City | Fulton | 6,393 | 7,100 | 7,332 | o |
| Waverly City | City | Pike | ... | 4,587 | 4,408 | o |
| Wayne | Village | Wood | 825 | 842 | 887 | o |
| Wayne Lakes | Village | Darke | 705 | 684 | 718 | o |
| Waynesburg | Village | Stark | 1,069 | 1,003 | 923 | o |
| Waynesfield | Village | Auglaize | 850 | 810 | 847 | o |
| Waynesville | Village | Warren | 1,978 | 2,558 | 2,834 | o |
| Wellington | Village | Lorain | 4,155 | 4,525 | 4,802 | o |
| Wellston | City | Jackson | 6,160 | 6,074 | 5,663 | o |
| Wellsville | Village | Columbiana | 4,565 | 4,133 | 3,541 | o |
| West Alexandria | Village | Preble | 1,454 | 1,388 | 1,340 | o |
| West Carrollton | City | Montgomery | 14,474 | 13,824 | 13,143 | o |
| West Elkton | Village | Preble | ... | 184 | 197 | o |
| West Farmington | Village | Trumbull | 552 | 519 | 499 | o |
| West Hill | Census-Designated Place | Trumbull | 2,954 | 2,523 | 2,273 | o |
| West Jefferson | Village | Madison | 4,593 | 4,347 | 4,222 | o |
| West Lafayette | Village | Coshocton | ... | 2,526 | 2,321 | o |
| West Leipsic | Village | Putnam | 275 | 271 | 206 | o |
| West Liberty | Village | Logan | 1,641 | 1,813 | 1,805 | o |
| West Manchester | Village | Preble | 475 | 440 | 474 | o |
| West Mansfield | Village | Logan | 799 | 700 | 682 | o |
| West Millgrove | Village | Wood | 171 | 78 | 174 | o |
| West Milton | Village | Miami | 4,441 | 4,679 | 4,630 | o |
| West Portsmouth | Census-Designated Place | Scioto | 3,551 | 3,458 | 3,149 | o |
| West Rushville | Village | Fairfield | 132 | 136 | 134 | o |
| West Salem | Village | Wayne | 1,660 | 1,501 | 1,464 | o |
| West Union | Village | Adams | 3,218 | 2,936 | 3,241 | o |
| West Unity | Village | Williams | ... | 1,889 | 1,671 | o |
| Westerville | City | 30,901 | 35,421 | 36,120 | o | |
| Westfield Center | Village | Medina | 866 | 1,072 | 1,115 | o |
| Westlake | City | Cuyahoga | 27,014 | 31,719 | 32,729 | o |
| Weston | Village | Wood | 1,762 | 1,659 | 1,590 | o |
| Wetherington | Census-Designated Place | Butler | ... | ... | 1,302 | o |
| Wharton | Village | Wyandot | 374 | 409 | 358 | o |
| Wheelersburg | Census-Designated Place | Scioto | ... | 6,471 | 6,437 | o |
| White Oak | Census-Designated Place | Hamilton | ... | ... | 19,167 | o |
| Whitehall | City | Franklin | 20,557 | 19,201 | 18,062 | o |
| Whitehouse | Village | Lucas | ... | 2,825 | 4,149 | o |
| Whites Landing | Census-Designated Place | Erie | ... | ... | 375 | o |
| Wickliffe | City | Lake | 14,558 | 13,484 | 12,750 | o |
| Wightmans Grove | Census-Designated Place | Sandusky | ... | ... | 72 | o |
| Wilberforce | Census-Designated Place | Greene | 2,639 | 1,579 | 2,271 | o |
| Wilkesville | Village | Vinton | 151 | 151 | 149 | o |
| Willard | City | Huron | 6,310 | 6,814 | 6,236 | o |
| Williamsburg | Village | Clermont | 2,304 | 2,370 | 2,490 | o |
| Williamsdale | Census-Designated Place | Butler | ... | ... | 581 | o |
| Williamsport | Village | Pickaway | 859 | 1,011 | 1,023 | o |
| Williston | Census-Designated Place | Ottawa | ... | ... | 487 | o |
| Willoughby | City | Lake | 20,466 | 22,639 | 22,268 | o |
| Willoughby Hills | City | Lake | 8,433 | 8,595 | 9,485 | o |
| Willowick | City | Lake | 15,270 | 14,361 | 14,171 | o |
| Willshire | Village | Van Wert | 541 | 463 | 397 | o |
| Wilmington | City | Clinton | 11,157 | 11,970 | 12,520 | o |
| Wilmot | Village | Stark | 264 | 335 | 304 | o |
| Wilson | Village | 131 | 118 | 125 | o | |
| Winchester | Village | Adams | 920 | 1,025 | 1,051 | o |
| Windham | Village | Portage | 2,943 | 2,794 | 2,209 | o |
| Winesburg | Census-Designated Place | Holmes | ... | ... | 352 | o |
| Wintersville | Village | Jefferson | ... | 3,934 | 3,924 | o |
| Withamsville | Census-Designated Place | Clermont | ... | ... | 7,021 | o |
| Wolfhurst | Census-Designated Place | Belmont | ... | ... | 1,239 | o |
| Woodlawn | Village | Hamilton | 2,670 | 2,816 | 3,294 | o |
| Woodmere | Village | Cuyahoga | 931 | 828 | 884 | o |
| Woodsfield | Village | Monroe | 2,865 | 2,598 | 2,384 | o |
| Woodstock | Village | Champaign | 297 | 317 | 305 | o |
| Woodville | Village | Sandusky | 1,876 | 2,023 | 2,135 | o |
| Wooster | City | Wayne | 23,075 | 25,285 | 26,119 | o |
| Worthington | City | Franklin | 14,899 | 14,132 | 13,575 | o |
| Wren | Village | Van Wert | 195 | 199 | 194 | o |
| Wright-Patterson AFB | Census-Designated Place | ... | ... | 1,821 | o | |
| Wyoming | City | Hamilton | 8,022 | 8,261 | 8,428 | o |
| Xenia | City | Greene | 24,902 | 24,232 | 25,719 | o |
| Yankee Lake | Village | Trumbull | 95 | 99 | 79 | o |
| Yellow Springs | Village | Greene | 4,025 | 3,779 | 3,487 | o |
| Yorkshire | Village | Darke | 48 | 110 | 96 | o |
| Yorkville | Village | 1,241 | 1,248 | 1,079 | o | |
| Youngstown | City | 95,695 | 82,026 | 66,982 | o | |
| Zaleski | Village | Vinton | 294 | 375 | 278 | o |
| Zanesfield | Village | Logan | 177 | 220 | 197 | o |
| Zanesville | City | Muskingum | 27,226 | 25,600 | 25,487 | o |
| Zoar | Village | Tuscarawas | 177 | 193 | 169 | o |
Source: US Census Bureau (web).
2011-04-03WWW.CITYPOPULATION.DE