All counties in the State of Iowa.
| Name | Status | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|
| Adair | County | 8,243 | 7,721 | 7,350 | o |
| Adams | County | 4,482 | 4,159 | 3,930 | o |
| Allamakee | County | 14,675 | 14,419 | 14,407 | o |
| Appanoose | County | 13,723 | 13,315 | 12,698 | o |
| Audubon | County | 6,830 | 6,251 | 6,032 | o |
| Benton | County | 25,307 | 26,643 | 26,734 | o |
| Black Hawk | County | 128,013 | 126,235 | 129,276 | o |
| Boone | County | 26,216 | 26,311 | 26,072 | o |
| Bremer | County | 23,325 | 23,394 | 23,460 | o |
| Buchanan | County | 21,093 | 20,760 | 20,910 | o |
| Buena Vista | County | 20,411 | 19,713 | 19,601 | o |
| Butler | County | 15,305 | 14,712 | 14,341 | o |
| Calhoun | County | 11,115 | 10,247 | 9,671 | o |
| Carroll | County | 21,427 | 20,911 | 20,674 | o |
| Cass | County | 14,684 | 13,918 | 13,758 | o |
| Cedar | County | 18,187 | 17,933 | 18,006 | o |
| Cerro Gordo | County | 46,447 | 44,321 | 43,609 | o |
| Cherokee | County | 13,032 | 12,021 | 11,409 | o |
| Chickasaw | County | 13,095 | 12,268 | 12,017 | o |
| Clarke | County | 9,133 | 9,076 | 9,086 | o |
| Clay | County | 17,372 | 16,784 | 16,617 | o |
| Clayton | County | 18,678 | 17,853 | 17,463 | o |
| Clinton | County | 50,149 | 49,299 | 48,934 | o |
| Crawford | County | 16,942 | 16,591 | 16,416 | o |
| Dallas | County | 40,776 | 51,779 | 61,950 | o |
| Davis | County | 8,541 | 8,507 | 8,562 | o |
| Decatur | County | 8,689 | 8,460 | 8,231 | o |
| Delaware | County | 18,404 | 17,619 | 17,205 | o |
| Des Moines | County | 42,351 | 40,553 | 41,058 | o |
| Dickinson | County | 16,424 | 16,608 | 16,623 | o |
| Dubuque | County | 89,156 | 90,926 | 93,072 | o |
| Emmet | County | 11,028 | 10,468 | 10,241 | o |
| Fayette | County | 22,008 | 20,939 | 20,164 | o |
| Floyd | County | 16,900 | 16,309 | 15,910 | o |
| Franklin | County | 10,704 | 10,664 | 10,540 | o |
| Fremont | County | 8,010 | 7,553 | 7,345 | o |
| Greene | County | 10,366 | 9,778 | 9,251 | o |
| Grundy | County | 12,369 | 12,232 | 12,177 | o |
| Guthrie | County | 11,353 | 11,201 | 10,833 | o |
| Hamilton | County | 16,435 | 15,914 | 15,238 | o |
| Hancock | County | 12,100 | 11,626 | 11,046 | o |
| Hardin | County | 18,812 | 17,768 | 17,144 | o |
| Harrison | County | 15,666 | 15,520 | 15,328 | o |
| Henry | County | 20,336 | 20,166 | 19,929 | o |
| Howard | County | 9,934 | 9,620 | 9,410 | o |
| Humboldt | County | 10,381 | 9,801 | 9,473 | o |
| Ida | County | 7,840 | 7,169 | 6,762 | o |
| Iowa | County | 15,671 | 15,911 | 15,811 | o |
| Jackson | County | 20,296 | 20,035 | 19,728 | o |
| Jasper | County | 37,213 | 37,011 | 36,257 | o |
| Jefferson | County | 16,181 | 15,553 | 15,472 | o |
| Johnson | County | 111,006 | 121,191 | 131,005 | o |
| Jones | County | 20,221 | 20,303 | 20,364 | o |
| Keokuk | County | 11,400 | 10,893 | 10,562 | o |
| Kossuth | County | 17,163 | 15,956 | 15,154 | o |
| Lee | County | 38,052 | 36,109 | 35,447 | o |
| Linn | County | 191,702 | 200,114 | 209,226 | o |
| Louisa | County | 12,183 | 11,775 | 11,245 | o |
| Lucas | County | 9,422 | 9,588 | 9,179 | o |
| Lyon | County | 11,763 | 11,449 | 11,172 | o |
| Madison | County | 14,019 | 14,864 | 15,409 | o |
| Mahaska | County | 22,335 | 22,220 | 22,000 | o |
| Marion | County | 32,054 | 32,310 | 32,682 | o |
| Marshall | County | 39,311 | 39,020 | 39,259 | o |
| Mills | County | 14,547 | 14,846 | 15,002 | o |
| Mitchell | County | 10,872 | 10,784 | 10,781 | o |
| Monona | County | 10,020 | 9,344 | 8,882 | o |
| Monroe | County | 8,016 | 7,728 | 7,549 | o |
| Montgomery | County | 11,771 | 11,177 | 10,796 | o |
| Muscatine | County | 41,722 | 41,952 | 42,934 | o |
| O'Brien | County | 15,102 | 14,257 | 13,928 | o |
| Osceola | County | 7,003 | 6,621 | 6,344 | o |
| Page | County | 16,976 | 16,002 | 15,260 | o |
| Palo Alto | County | 10,147 | 9,569 | 9,279 | o |
| Plymouth | County | 24,849 | 24,545 | 24,210 | o |
| Pocahontas | County | 8,662 | 7,793 | 7,346 | o |
| Polk | County | 374,575 | 401,993 | 429,439 | o |
| Pottawattamie | County | 87,807 | 88,960 | 90,224 | o |
| Poweshiek | County | 18,832 | 18,625 | 18,423 | o |
| Ringgold | County | 5,469 | 5,191 | 4,944 | o |
| Sac | County | 11,529 | 10,528 | 10,059 | o |
| Scott | County | 158,689 | 160,073 | 166,650 | o |
| Shelby | County | 13,074 | 12,408 | 11,957 | o |
| Sioux | County | 31,589 | 31,905 | 32,244 | o |
| Story | County | 79,981 | 81,757 | 87,214 | o |
| Tama | County | 18,103 | 17,897 | 17,377 | o |
| Taylor | County | 6,958 | 6,522 | 6,344 | o |
| Union | County | 12,309 | 11,943 | 12,241 | o |
| Van Buren | County | 7,809 | 7,625 | 7,679 | o |
| Wapello | County | 36,051 | 35,771 | 35,334 | o |
| Warren | County | 40,671 | 42,923 | 45,275 | o |
| Washington | County | 20,670 | 21,037 | 21,258 | o |
| Wayne | County | 6,730 | 6,422 | 6,283 | o |
| Webster | County | 40,235 | 38,574 | 38,346 | o |
| Winnebago | County | 11,723 | 11,167 | 10,602 | o |
| Winneshiek | County | 21,310 | 20,871 | 20,629 | o |
| Woodbury | County | 103,877 | 101,211 | 102,831 | o |
| Worth | County | 7,909 | 7,715 | 7,541 | o |
| Wright | County | 14,334 | 13,377 | 12,716 | o |
| Iowa | Federal State | 2,926,380 | 2,949,450 | 3,007,856 |
Contents: All incorporated places in the State of Iowa.
| Name | Status | County | Population census 2000-04-01 | Population estimate 2005-07-01 | Population estimate 2009-07-01 | |
|---|---|---|---|---|---|---|
| Ackley | City | 1,809 | 1,711 | 1,648 | o | |
| Ackworth | City | Warren | 85 | 108 | 116 | o |
| Adair | City | 839 | 754 | 701 | o | |
| Adel | City | Dallas | 3,435 | 4,125 | 4,321 | o |
| Afton | City | Union | 917 | 881 | 898 | o |
| Agency | City | Wapello | 622 | 642 | 629 | o |
| Ainsworth | City | Washington | 524 | 537 | 535 | o |
| Akron | City | Plymouth | 1,489 | 1,445 | 1,401 | o |
| Albert City | City | Buena Vista | 709 | 681 | 684 | o |
| Albia | City | Monroe | 3,770 | 3,625 | 3,529 | o |
| Albion | City | Marshall | 592 | 566 | 565 | o |
| Alburnett | City | Linn | 558 | 541 | 547 | o |
| Alden | City | Hardin | 904 | 839 | 783 | o |
| Alexander | City | Franklin | 165 | 161 | 158 | o |
| Algona | City | Kossuth | 5,741 | 5,446 | 5,227 | o |
| Alleman | City | Polk | 443 | 427 | 433 | o |
| Allerton | City | Wayne | 559 | 547 | 534 | o |
| Allison | City | Butler | 1,006 | 950 | 896 | o |
| Alta | City | Buena Vista | 1,865 | 1,833 | 1,862 | o |
| Alta Vista | City | Chickasaw | 286 | 265 | 260 | o |
| Alton | City | Sioux | 1,111 | 1,097 | 1,115 | o |
| Altoona | City | Polk | 10,416 | 12,936 | 14,397 | o |
| Alvord | City | Lyon | 187 | 184 | 175 | o |
| Ames | City | Story | 50,855 | 52,415 | 56,657 | o |
| Anamosa | City | Jones | 5,506 | 5,624 | 5,745 | o |
| Andover | City | Clinton | 87 | 86 | 84 | o |
| Andrew | City | Jackson | 460 | 448 | 431 | o |
| Anita | City | Cass | 1,051 | 1,143 | 1,126 | o |
| Ankeny | City | Polk | 27,545 | 36,039 | 42,648 | o |
| Anthon | City | Woodbury | 649 | 625 | 634 | o |
| Aplington | City | Butler | 1,058 | 1,007 | 954 | o |
| Arcadia | City | Carroll | 443 | 421 | 439 | o |
| Archer | City | O'Brien | 126 | 119 | 115 | o |
| Aredale | City | Butler | 89 | 83 | 70 | o |
| Arion | City | Crawford | 136 | 116 | 106 | o |
| Arispe | City | Union | 89 | 90 | 96 | o |
| Arlington | City | Fayette | 490 | 472 | 449 | o |
| Armstrong | City | Emmet | 979 | 898 | 867 | o |
| Arnolds Park | City | Dickinson | 1,194 | 1,238 | 1,332 | o |
| Arthur | City | Ida | 245 | 220 | 204 | o |
| Asbury | City | Dubuque | 2,449 | 3,352 | 4,022 | o |
| Ashton | City | Osceola | 461 | 436 | 417 | o |
| Aspinwall | City | Crawford | 60 | 66 | 64 | o |
| Atalissa | City | Muscatine | 311 | 309 | 306 | o |
| Atkins | City | Benton | 986 | 1,330 | 1,588 | o |
| Atlantic | City | Cass | 7,257 | 6,800 | 6,728 | o |
| Auburn | City | Sac | 296 | 276 | 265 | o |
| Audubon | City | Audubon | 2,386 | 2,183 | 2,120 | o |
| Aurelia | City | Cherokee | 1,064 | 961 | 919 | o |
| Aurora | City | Buchanan | 194 | 182 | 181 | o |
| Avoca | City | Pottawattamie | 1,609 | 1,525 | 1,511 | o |
| Ayrshire | City | Palo Alto | 202 | 183 | 175 | o |
| Badger | City | Webster | 610 | 580 | 572 | o |
| Bagley | City | Guthrie | 354 | 332 | 313 | o |
| Baldwin | City | Jackson | 127 | 129 | 135 | o |
| Balltown | City | Dubuque | 79 | 69 | 71 | o |
| Bancroft | City | Kossuth | 808 | 749 | 714 | o |
| Bankston | City | Dubuque | 27 | 26 | 26 | o |
| Barnes City | City | 201 | 223 | 221 | o | |
| Barnum | City | Webster | 198 | 195 | 191 | o |
| Bassett | City | Chickasaw | 74 | 70 | 68 | o |
| Batavia | City | Jefferson | 500 | 483 | 475 | o |
| Battle Creek | City | Ida | 743 | 697 | 645 | o |
| Baxter | City | Jasper | 1,052 | 1,045 | 1,032 | o |
| Bayard | City | Guthrie | 536 | 510 | 470 | o |
| Beacon | City | Mahaska | 524 | 533 | 522 | o |
| Beaconsfield | City | Ringgold | 11 | 11 | 10 | o |
| Beaman | City | Grundy | 210 | 181 | 172 | o |
| Beaver | City | Boone | 53 | 52 | 50 | o |
| Bedford | City | Taylor | 1,620 | 1,506 | 1,470 | o |
| Belle Plaine | City | Benton | 2,878 | 2,876 | 2,833 | o |
| Bellevue | City | Jackson | 2,382 | 2,297 | 2,302 | o |
| Belmond | City | Wright | 2,560 | 2,397 | 2,269 | o |
| Bennett | City | Cedar | 393 | 370 | 360 | o |
| Benton | City | Ringgold | 40 | 38 | 35 | o |
| Berkley | City | Boone | 24 | 27 | 26 | o |
| Bernard | City | Dubuque | 102 | 100 | 98 | o |
| Bertram | City | Linn | 267 | 270 | 281 | o |
| Bettendorf | City | Scott | 31,258 | 31,714 | 33,175 | o |
| Bevington | City | 61 | 62 | 60 | o | |
| Birmingham | City | Van Buren | 423 | 419 | 421 | o |
| Blairsburg | City | Hamilton | 235 | 223 | 217 | o |
| Blairstown | City | Benton | 683 | 696 | 689 | o |
| Blakesburg | City | Wapello | 372 | 361 | 350 | o |
| Blanchard | City | Page | 61 | 64 | 60 | o |
| Blencoe | City | Monona | 231 | 210 | 197 | o |
| Blockton | City | Taylor | 192 | 184 | 170 | o |
| Bloomfield | City | Davis | 2,605 | 2,544 | 2,565 | o |
| Blue Grass | City | Scott | 1,171 | 1,301 | 1,425 | o |
| Bode | City | Humboldt | 327 | 309 | 296 | o |
| Bonaparte | City | Van Buren | 458 | 444 | 444 | o |
| Bondurant | City | Polk | 1,880 | 2,232 | 3,004 | o |
| Boone | City | Boone | 12,813 | 12,684 | 12,479 | o |
| Bouton | City | Dallas | 136 | 153 | 157 | o |
| Boxholm | City | Boone | 215 | 206 | 197 | o |
| Boyden | City | Sioux | 697 | 677 | 689 | o |
| Braddyville | City | Page | 176 | 169 | 162 | o |
| Bradgate | City | Humboldt | 101 | 96 | 91 | o |
| Brandon | City | Buchanan | 311 | 312 | 326 | o |
| Brayton | City | Audubon | 145 | 137 | 131 | o |
| Breda | City | Carroll | 482 | 453 | 443 | o |
| Bridgewater | City | Adair | 175 | 164 | 156 | o |
| Brighton | City | Washington | 687 | 680 | 675 | o |
| Bristow | City | Butler | 202 | 197 | 160 | o |
| Britt | City | Hancock | 2,052 | 1,980 | 1,858 | o |
| Bronson | City | Woodbury | 269 | 276 | 286 | o |
| Brooklyn | City | Poweshiek | 1,367 | 1,357 | 1,336 | o |
| Brunsville | City | Plymouth | 146 | 143 | 137 | o |
| Buck Grove | City | Crawford | 49 | 53 | 51 | o |
| Buckeye | City | Hardin | 110 | 99 | 94 | o |
| Buffalo | City | Scott | 1,387 | 1,331 | 1,346 | o |
| Buffalo Center | City | Winnebago | 962 | 884 | 830 | o |
| Burlington | City | Des Moines | 26,848 | 25,192 | 25,527 | o |
| Burt | City | Kossuth | 556 | 515 | 487 | o |
| Bussey | City | Marion | 450 | 448 | 435 | o |
| Calamus | City | Clinton | 394 | 401 | 395 | o |
| Callender | City | Webster | 430 | 433 | 426 | o |
| Calmar | City | Winneshiek | 1,058 | 1,041 | 999 | o |
| Calumet | City | O'Brien | 181 | 157 | 151 | o |
| Camanche | City | Clinton | 4,215 | 4,224 | 4,268 | o |
| Cambridge | City | Story | 825 | 804 | 811 | o |
| Cantril | City | Van Buren | 257 | 253 | 254 | o |
| Carbon | City | Adams | 28 | 23 | 22 | o |
| Carlisle | City | 3,566 | 3,564 | 3,726 | o | |
| Carpenter | City | Mitchell | 130 | 130 | 129 | o |
| Carroll | City | Carroll | 10,098 | 9,971 | 9,877 | o |
| Carson | City | Pottawattamie | 668 | 689 | 715 | o |
| Carter Lake | City | Pottawattamie | 3,248 | 3,254 | 3,208 | o |
| Cascade | City | 1,973 | 2,016 | 2,146 | o | |
| Casey | City | 478 | 407 | 389 | o | |
| Castalia | City | Winneshiek | 156 | 156 | 161 | o |
| Castana | City | Monona | 178 | 168 | 158 | o |
| Cedar Falls | City | Black Hawk | 36,142 | 36,477 | 38,714 | o |
| Cedar Rapids | City | Linn | 121,482 | 123,965 | 127,764 | o |
| Center Junction | City | Jones | 135 | 121 | 113 | o |
| Center Point | City | Linn | 2,006 | 2,232 | 2,321 | o |
| Centerville | City | Appanoose | 5,930 | 5,644 | 5,367 | o |
| Central City | City | Linn | 1,167 | 1,144 | 1,172 | o |
| Centralia | City | Dubuque | 101 | 99 | 98 | o |
| Chariton | City | Lucas | 4,601 | 4,563 | 4,348 | o |
| Charles City | City | Floyd | 7,812 | 7,540 | 7,346 | o |
| Charlotte | City | Clinton | 421 | 416 | 435 | o |
| Charter Oak | City | Crawford | 530 | 513 | 496 | o |
| Chatsworth | City | Sioux | 89 | 89 | 83 | o |
| Chelsea | City | Tama | 287 | 277 | 267 | o |
| Cherokee | City | Cherokee | 5,369 | 4,934 | 4,673 | o |
| Chester | City | Howard | 151 | 141 | 136 | o |
| Chillicothe | City | Wapello | 91 | 86 | 83 | o |
| Churdan | City | Greene | 418 | 382 | 359 | o |
| Cincinnati | City | Appanoose | 428 | 396 | 360 | o |
| Clare | City | Webster | 190 | 175 | 172 | o |
| Clarence | City | Cedar | 1,008 | 977 | 956 | o |
| Clarinda | City | Page | 5,690 | 5,499 | 5,301 | o |
| Clarion | City | Wright | 2,969 | 2,799 | 2,671 | o |
| Clarksville | City | Butler | 1,441 | 1,368 | 1,272 | o |
| Clayton | City | Clayton | 55 | 53 | 51 | o |
| Clear Lake | City | Cerro Gordo | 8,173 | 7,871 | 7,786 | o |
| Clearfield | City | 375 | 362 | 351 | o | |
| Cleghorn | City | Cherokee | 250 | 236 | 222 | o |
| Clemons | City | Marshall | 148 | 146 | 145 | o |
| Clermont | City | Fayette | 717 | 693 | 683 | o |
| Clinton | City | Clinton | 27,772 | 26,829 | 26,459 | o |
| Clio | City | Wayne | 91 | 75 | 71 | o |
| Clive | City | 12,796 | 13,961 | 15,469 | o | |
| Clutier | City | Tama | 229 | 228 | 219 | o |
| Coburg | City | Montgomery | 31 | 31 | 29 | o |
| Coggon | City | Linn | 749 | 705 | 711 | o |
| Coin | City | Page | 252 | 207 | 193 | o |
| Colesburg | City | Delaware | 412 | 383 | 371 | o |
| Colfax | City | Jasper | 2,257 | 2,195 | 2,186 | o |
| College Springs | City | Page | 246 | 237 | 222 | o |
| Collins | City | Story | 499 | 476 | 480 | o |
| Colo | City | Story | 886 | 853 | 869 | o |
| Columbus City | City | Louisa | 376 | 359 | 335 | o |
| Columbus Junction | City | Louisa | 1,900 | 1,821 | 1,783 | o |
| Colwell | City | Floyd | 76 | 75 | 73 | o |
| Conesville | City | Muscatine | 424 | 448 | 439 | o |
| Conrad | City | Grundy | 1,055 | 997 | 995 | o |
| Conway | City | Taylor | 63 | 61 | 59 | o |
| Coon Rapids | City | 1,305 | 1,253 | 1,238 | o | |
| Coppock | City | 57 | 65 | 63 | o | |
| Coralville | City | Johnson | 15,182 | 17,788 | 18,827 | o |
| Corning | City | Adams | 1,787 | 1,644 | 1,555 | o |
| Correctionville | City | Woodbury | 851 | 853 | 855 | o |
| Corwith | City | Hancock | 350 | 325 | 304 | o |
| Corydon | City | Wayne | 1,591 | 1,485 | 1,459 | o |
| Cotter | City | Louisa | 48 | 47 | 44 | o |
| Coulter | City | Franklin | 262 | 256 | 251 | o |
| Council Bluffs | City | Pottawattamie | 58,194 | 59,453 | 60,391 | o |
| Craig | City | Plymouth | 102 | 99 | 95 | o |
| Crawfordsville | City | Washington | 295 | 301 | 300 | o |
| Crescent | City | Pottawattamie | 520 | 591 | 709 | o |
| Cresco | City | Howard | 3,910 | 3,742 | 3,698 | o |
| Creston | City | Union | 7,597 | 7,344 | 7,556 | o |
| Cromwell | City | Union | 120 | 117 | 120 | o |
| Crystal Lake | City | Hancock | 285 | 267 | 252 | o |
| Cumberland | City | Cass | 281 | 247 | 243 | o |
| Cumming | City | Warren | 160 | 250 | 315 | o |
| Curlew | City | Palo Alto | 62 | 59 | 56 | o |
| Cushing | City | Woodbury | 246 | 235 | 239 | o |
| Cylinder | City | Palo Alto | 110 | 100 | 99 | o |
| Dakota City | City | Humboldt | 911 | 835 | 820 | o |
| Dallas Center | City | Dallas | 1,604 | 1,580 | 1,699 | o |
| Dana | City | Greene | 84 | 81 | 76 | o |
| Danbury | City | Woodbury | 384 | 321 | 328 | o |
| Danville | City | Des Moines | 914 | 849 | 864 | o |
| Davenport | City | Scott | 98,359 | 98,282 | 101,335 | o |
| Davis City | City | Decatur | 275 | 255 | 250 | o |
| Dawson | City | Dallas | 155 | 163 | 158 | o |
| Dayton | City | Webster | 887 | 833 | 820 | o |
| De Soto | City | Dallas | 1,009 | 1,195 | 1,216 | o |
| De Witt | City | Clinton | 5,056 | 5,214 | 5,243 | o |
| Decatur City | City | Decatur | 199 | 192 | 187 | o |
| Decorah | City | Winneshiek | 8,182 | 7,965 | 7,765 | o |
| Dedham | City | Carroll | 280 | 243 | 224 | o |
| Deep River | City | Poweshiek | 288 | 278 | 269 | o |
| Defiance | City | Shelby | 346 | 328 | 308 | o |
| Delaware | City | Delaware | 188 | 186 | 180 | o |
| Delhi | City | Delaware | 458 | 497 | 489 | o |
| Delmar | City | Clinton | 514 | 498 | 484 | o |
| Deloit | City | Crawford | 288 | 285 | 279 | o |
| Delphos | City | Ringgold | 25 | 25 | 24 | o |
| Delta | City | Keokuk | 410 | 402 | 391 | o |
| Denison | City | Crawford | 7,342 | 7,242 | 7,187 | o |
| Denver | City | Bremer | 1,642 | 1,624 | 1,604 | o |
| Derby | City | Lucas | 131 | 137 | 131 | o |
| Des Moines | City | Polk | 199,007 | 194,362 | 200,538 | o |
| Dexter | City | Dallas | 694 | 827 | 862 | o |
| Diagonal | City | Ringgold | 312 | 296 | 278 | o |
| Dickens | City | Clay | 202 | 190 | 185 | o |
| Dike | City | Grundy | 952 | 1,149 | 1,148 | o |
| Dixon | City | Scott | 268 | 257 | 249 | o |
| Dolliver | City | Emmet | 77 | 72 | 60 | o |
| Donahue | City | Scott | 293 | 286 | 323 | o |
| Donnellson | City | Lee | 981 | 902 | 891 | o |
| Doon | City | Lyon | 533 | 524 | 519 | o |
| Dougherty | City | Cerro Gordo | 80 | 78 | 76 | o |
| Dow City | City | Crawford | 503 | 463 | 456 | o |
| Dows | City | 675 | 584 | 551 | o | |
| Drakesville | City | Davis | 185 | 215 | 216 | o |
| Dubuque | City | Dubuque | 57,771 | 57,252 | 57,241 | o |
| Dumont | City | Butler | 676 | 643 | 600 | o |
| Duncombe | City | Webster | 474 | 460 | 450 | o |
| Dundee | City | Delaware | 179 | 172 | 166 | o |
| Dunkerton | City | Black Hawk | 752 | 772 | 815 | o |
| Dunlap | City | Harrison | 1,139 | 1,084 | 1,084 | o |
| Durango | City | Dubuque | 24 | 23 | 22 | o |
| Durant | City | 1,677 | 1,634 | 1,704 | o | |
| Dyersville | City | 4,051 | 4,121 | 4,182 | o | |
| Dysart | City | Tama | 1,303 | 1,288 | 1,255 | o |
| Eagle Grove | City | Wright | 3,712 | 3,455 | 3,257 | o |
| Earlham | City | Madison | 1,298 | 1,302 | 1,323 | o |
| Earling | City | Shelby | 471 | 446 | 427 | o |
| Earlville | City | Delaware | 900 | 844 | 820 | o |
| Early | City | Sac | 605 | 535 | 506 | o |
| East Peru | City | Madison | 153 | 153 | 142 | o |
| Eddyville | City | 1,064 | 1,063 | 1,049 | o | |
| Edgewood | City | 923 | 890 | 887 | o | |
| Elberon | City | Tama | 245 | 237 | 227 | o |
| Eldon | City | Wapello | 999 | 967 | 956 | o |
| Eldora | City | Hardin | 3,035 | 2,821 | 2,710 | o |
| Eldridge | City | Scott | 4,169 | 4,459 | 4,948 | o |
| Elgin | City | Fayette | 676 | 645 | 614 | o |
| Elk Horn | City | Shelby | 649 | 598 | 607 | o |
| Elk Run Heights | City | Black Hawk | 1,121 | 1,083 | 1,081 | o |
| Elkader | City | Clayton | 1,465 | 1,376 | 1,331 | o |
| Elkhart | City | Polk | 368 | 421 | 468 | o |
| Elkport | City | Clayton | 113 | 105 | 100 | o |
| Elliott | City | Montgomery | 402 | 378 | 361 | o |
| Ellston | City | Ringgold | 57 | 54 | 52 | o |
| Ellsworth | City | Hamilton | 532 | 527 | 506 | o |
| Elma | City | Howard | 598 | 572 | 565 | o |
| Ely | City | Linn | 1,146 | 1,459 | 1,618 | o |
| Emerson | City | Mills | 480 | 483 | 481 | o |
| Emmetsburg | City | Palo Alto | 3,904 | 3,667 | 3,578 | o |
| Epworth | City | Dubuque | 1,451 | 1,569 | 1,631 | o |
| Essex | City | Page | 884 | 825 | 776 | o |
| Estherville | City | Emmet | 6,657 | 6,313 | 6,193 | o |
| Evansdale | City | Black Hawk | 4,526 | 4,924 | 5,068 | o |
| Everly | City | Clay | 644 | 641 | 624 | o |
| Exira | City | Audubon | 810 | 751 | 713 | o |
| Exline | City | Appanoose | 191 | 171 | 161 | o |
| Fairbank | City | 1,043 | 1,017 | 1,073 | o | |
| Fairfax | City | Linn | 925 | 1,503 | 1,950 | o |
| Fairfield | City | Jefferson | 9,615 | 9,214 | 9,201 | o |
| Farley | City | Dubuque | 1,342 | 1,396 | 1,436 | o |
| Farmersburg | City | Clayton | 300 | 279 | 270 | o |
| Farmington | City | Van Buren | 756 | 717 | 719 | o |
| Farnhamville | City | 430 | 374 | 349 | o | |
| Farragut | City | Fremont | 523 | 467 | 452 | o |
| Fayette | City | Fayette | 1,351 | 1,296 | 1,329 | o |
| Fenton | City | Kossuth | 317 | 273 | 256 | o |
| Ferguson | City | Marshall | 126 | 122 | 121 | o |
| Fertile | City | Worth | 360 | 353 | 346 | o |
| Floris | City | Davis | 153 | 154 | 153 | o |
| Floyd | City | Floyd | 361 | 337 | 333 | o |
| Fonda | City | Pocahontas | 648 | 579 | 550 | o |
| Fontanelle | City | Adair | 689 | 650 | 617 | o |
| Forest City | City | 4,389 | 4,199 | 3,964 | o | |
| Fort Atkinson | City | Winneshiek | 389 | 372 | 356 | o |
| Fort Dodge | City | Webster | 26,344 | 25,211 | 25,083 | o |
| Fort Madison | City | Lee | 11,682 | 11,039 | 10,870 | o |
| Fostoria | City | Clay | 230 | 237 | 238 | o |
| Franklin | City | Lee | 136 | 126 | 126 | o |
| Fraser | City | Boone | 137 | 120 | 115 | o |
| Fredericksburg | City | Chickasaw | 984 | 880 | 893 | o |
| Frederika | City | Bremer | 199 | 193 | 188 | o |
| Fredonia | City | Louisa | 254 | 223 | 206 | o |
| Fremont | City | Mahaska | 727 | 685 | 673 | o |
| Fruitland | City | Muscatine | 701 | 843 | 951 | o |
| Galt | City | Wright | 30 | 29 | 27 | o |
| Galva | City | Ida | 368 | 312 | 294 | o |
| Garber | City | Clayton | 103 | 76 | 72 | o |
| Garden Grove | City | Decatur | 250 | 242 | 240 | o |
| Garnavillo | City | Clayton | 754 | 740 | 714 | o |
| Garner | City | Hancock | 2,922 | 2,935 | 2,877 | o |
| Garrison | City | Benton | 413 | 410 | 403 | o |
| Garwin | City | Tama | 565 | 549 | 525 | o |
| Geneva | City | Franklin | 171 | 176 | 159 | o |
| George | City | Lyon | 1,051 | 993 | 954 | o |
| Gibson | City | Keokuk | 92 | 73 | 71 | o |
| Gilbert | City | Story | 987 | 1,028 | 1,080 | o |
| Gilbertville | City | Black Hawk | 767 | 705 | 742 | o |
| Gillett Grove | City | Clay | 55 | 59 | 54 | o |
| Gilman | City | Marshall | 600 | 568 | 559 | o |
| Gilmore City | City | 556 | 506 | 481 | o | |
| Gladbrook | City | Tama | 1,015 | 1,020 | 980 | o |
| Glenwood | City | Mills | 5,396 | 5,516 | 5,656 | o |
| Glidden | City | Carroll | 1,253 | 1,219 | 1,202 | o |
| Goldfield | City | Wright | 680 | 630 | 600 | o |
| Goodell | City | Hancock | 174 | 149 | 139 | o |
| Goose Lake | City | Clinton | 232 | 235 | 232 | o |
| Gowrie | City | Webster | 1,038 | 1,036 | 1,011 | o |
| Graettinger | City | Palo Alto | 900 | 853 | 831 | o |
| Graf | City | Dubuque | 73 | 74 | 74 | o |
| Grafton | City | Worth | 290 | 285 | 267 | o |
| Grand Junction | City | Greene | 964 | 906 | 846 | o |
| Grand Mound | City | Clinton | 676 | 656 | 641 | o |
| Grand River | City | Decatur | 225 | 192 | 188 | o |
| Grandview | City | Louisa | 612 | 592 | 566 | o |
| Granger | City | Dallas | 594 | 1,007 | 1,230 | o |
| Grant | City | Montgomery | 102 | 96 | 91 | o |
| Granville | City | Sioux | 325 | 318 | 316 | o |
| Gravity | City | Taylor | 218 | 208 | 202 | o |
| Gray | City | Audubon | 82 | 77 | 74 | o |
| Greeley | City | Delaware | 276 | 265 | 256 | o |
| Greene | City | Butler | 1,104 | 989 | 928 | o |
| Greenfield | City | Adair | 2,129 | 1,952 | 1,851 | o |
| Greenville | City | Clay | 93 | 86 | 84 | o |
| Grimes | City | 5,123 | 6,536 | 8,794 | o | |
| Grinnell | City | Poweshiek | 9,122 | 9,193 | 9,064 | o |
| Griswold | City | Cass | 1,039 | 965 | 941 | o |
| Grundy Center | City | Grundy | 2,596 | 2,568 | 2,524 | o |
| Gruver | City | Emmet | 106 | 98 | 94 | o |
| Guernsey | City | Poweshiek | 70 | 67 | 65 | o |
| Guthrie Center | City | Guthrie | 1,668 | 1,578 | 1,496 | o |
| Guttenberg | City | Clayton | 1,992 | 1,940 | 1,879 | o |
| Halbur | City | Carroll | 213 | 215 | 207 | o |
| Hamburg | City | Fremont | 1,227 | 1,186 | 1,141 | o |
| Hamilton | City | Marion | 144 | 142 | 138 | o |
| Hampton | City | Franklin | 4,218 | 4,203 | 4,152 | o |
| Hancock | City | Pottawattamie | 207 | 201 | 195 | o |
| Hanlontown | City | Worth | 229 | 230 | 224 | o |
| Hansell | City | Franklin | 96 | 99 | 98 | o |
| Harcourt | City | Webster | 340 | 315 | 313 | o |
| Hardy | City | Humboldt | 57 | 91 | 87 | o |
| Harlan | City | Shelby | 5,282 | 5,087 | 4,895 | o |
| Harper | City | Keokuk | 134 | 118 | 113 | o |
| Harpers Ferry | City | Allamakee | 330 | 316 | 313 | o |
| Harris | City | Osceola | 200 | 191 | 176 | o |
| Hartford | City | Warren | 759 | 759 | 781 | o |
| Hartley | City | O'Brien | 1,733 | 1,536 | 1,497 | o |
| Hartwick | City | Poweshiek | 83 | 80 | 77 | o |
| Harvey | City | Marion | 277 | 273 | 267 | o |
| Hastings | City | Mills | 214 | 165 | 165 | o |
| Havelock | City | Pocahontas | 177 | 174 | 164 | o |
| Haverhill | City | Marshall | 170 | 162 | 160 | o |
| Hawarden | City | Sioux | 2,478 | 2,396 | 2,367 | o |
| Hawkeye | City | Fayette | 489 | 457 | 435 | o |
| Hayesville | City | Keokuk | 64 | 63 | 61 | o |
| Hazleton | City | Buchanan | 950 | 913 | 924 | o |
| Hedrick | City | Keokuk | 837 | 808 | 794 | o |
| Henderson | City | Mills | 171 | 167 | 167 | o |
| Hepburn | City | Page | 39 | 36 | 26 | o |
| Hiawatha | City | Linn | 6,514 | 6,628 | 6,697 | o |
| Hills | City | Johnson | 678 | 646 | 762 | o |
| Hillsboro | City | Henry | 205 | 204 | 197 | o |
| Hinton | City | Plymouth | 808 | 834 | 836 | o |
| Holland | City | Grundy | 250 | 261 | 254 | o |
| Holstein | City | Ida | 1,473 | 1,382 | 1,362 | o |
| Holy Cross | City | Dubuque | 341 | 335 | 355 | o |
| Hopkinton | City | Delaware | 681 | 640 | 636 | o |
| Hornick | City | Woodbury | 253 | 240 | 240 | o |
| Hospers | City | Sioux | 670 | 667 | 690 | o |
| Houghton | City | Lee | 130 | 125 | 126 | o |
| Hubbard | City | Hardin | 885 | 836 | 805 | o |
| Hudson | City | Black Hawk | 2,117 | 2,136 | 2,201 | o |
| Hull | City | Sioux | 1,960 | 2,012 | 2,031 | o |
| Humboldt | City | Humboldt | 4,452 | 4,301 | 4,191 | o |
| Humeston | City | Wayne | 545 | 532 | 524 | o |
| Huxley | City | Story | 2,329 | 2,493 | 2,844 | o |
| Ida Grove | City | Ida | 2,350 | 2,157 | 2,022 | o |
| Imogene | City | Fremont | 66 | 59 | 56 | o |
| Independence | City | Buchanan | 6,067 | 6,005 | 6,074 | o |
| Indianola | City | Warren | 13,178 | 14,045 | 14,506 | o |
| Inwood | City | Lyon | 875 | 854 | 840 | o |
| Ionia | City | Chickasaw | 277 | 262 | 255 | o |
| Iowa City | City | Johnson | 62,422 | 65,641 | 69,086 | o |
| Iowa Falls | City | Hardin | 5,198 | 5,031 | 4,893 | o |
| Ireton | City | Sioux | 585 | 582 | 576 | o |
| Irwin | City | Shelby | 372 | 363 | 346 | o |
| Jackson Junction | City | Winneshiek | 60 | 60 | 62 | o |
| Jamaica | City | Guthrie | 237 | 233 | 221 | o |
| Janesville | City | 829 | 866 | 876 | o | |
| Jefferson | City | Greene | 4,626 | 4,351 | 4,117 | o |
| Jesup | City | 2,212 | 2,376 | 2,408 | o | |
| Jewell Junction | City | Hamilton | 1,239 | 1,189 | 1,138 | o |
| Johnston | City | Polk | 8,935 | 13,632 | 15,918 | o |
| Joice | City | Worth | 231 | 232 | 226 | o |
| Jolley | City | Calhoun | 54 | 33 | 31 | o |
| Kalona | City | Washington | 2,293 | 2,433 | 2,532 | o |
| Kamrar | City | Hamilton | 227 | 215 | 208 | o |
| Kanawha | City | Hancock | 739 | 682 | 637 | o |
| Kellerton | City | Ringgold | 372 | 333 | 311 | o |
| Kelley | City | Story | 311 | 323 | 340 | o |
| Kellogg | City | Jasper | 606 | 616 | 593 | o |
| Kensett | City | Worth | 280 | 271 | 263 | o |
| Keokuk | City | Lee | 11,427 | 10,616 | 10,406 | o |
| Keomah Village | City | Mahaska | 97 | 93 | 92 | o |
| Keosauqua | City | Van Buren | 1,068 | 1,053 | 1,083 | o |
| Keota | City | Keokuk | 1,025 | 916 | 876 | o |
| Keswick | City | Keokuk | 295 | 288 | 280 | o |
| Keystone | City | Benton | 687 | 685 | 674 | o |
| Kimballton | City | Audubon | 342 | 306 | 295 | o |
| Kingsley | City | Plymouth | 1,250 | 1,225 | 1,244 | o |
| Kinross | City | Keokuk | 80 | 79 | 76 | o |
| Kirkman | City | Shelby | 76 | 74 | 70 | o |
| Kirkville | City | Wapello | 214 | 217 | 210 | o |
| Kiron | City | Crawford | 273 | 261 | 253 | o |
| Klemme | City | Hancock | 593 | 551 | 516 | o |
| Knierim | City | Calhoun | 70 | 57 | 49 | o |
| Knoxville | City | Marion | 7,746 | 7,379 | 7,263 | o |
| La Motte | City | Jackson | 272 | 275 | 266 | o |
| La Porte City | City | Black Hawk | 2,321 | 2,299 | 2,305 | o |
| Lacona | City | Warren | 361 | 355 | 349 | o |
| Ladora | City | Iowa | 287 | 289 | 286 | o |
| Lake City | City | Calhoun | 1,827 | 1,668 | 1,579 | o |
| Lake Mills | City | Winnebago | 2,140 | 2,020 | 1,950 | o |
| Lake Park | City | Dickinson | 1,034 | 991 | 972 | o |
| Lake View | City | Sac | 1,317 | 1,212 | 1,182 | o |
| Lakeside | City | Buena Vista | 484 | 486 | 502 | o |
| Lakota | City | Kossuth | 255 | 244 | 235 | o |
| Lambs Grove | City | Jasper | 225 | 215 | 206 | o |
| Lamoni | City | Decatur | 2,454 | 2,447 | 2,348 | o |
| Lamont | City | Buchanan | 503 | 475 | 476 | o |
| Lanesboro | City | Carroll | 152 | 131 | 126 | o |
| Lansing | City | Allamakee | 1,012 | 971 | 951 | o |
| Larchwood | City | Lyon | 788 | 786 | 767 | o |
| Larrabee | City | Cherokee | 146 | 135 | 126 | o |
| Latimer | City | Franklin | 535 | 546 | 539 | o |
| Laurel | City | Marshall | 266 | 264 | 260 | o |
| Laurens | City | Pocahontas | 1,476 | 1,305 | 1,228 | o |
| Lawler | City | Chickasaw | 461 | 425 | 413 | o |
| Lawton | City | Woodbury | 701 | 714 | 790 | o |
| Le Claire | City | Scott | 2,890 | 3,195 | 3,560 | o |
| Le Grand | City | 883 | 952 | 954 | o | |
| Le Mars | City | Plymouth | 9,252 | 9,195 | 9,124 | o |
| Le Roy | City | Decatur | 13 | 8 | 8 | o |
| Ledyard | City | Kossuth | 147 | 135 | 127 | o |
| Lehigh | City | Webster | 497 | 479 | 470 | o |
| Leighton | City | Mahaska | 157 | 167 | 165 | o |
| Leland | City | Winnebago | 256 | 262 | 250 | o |
| Lenox | City | 1,401 | 1,277 | 1,248 | o | |
| Leon | City | Decatur | 1,983 | 1,890 | 1,834 | o |
| Lester | City | Lyon | 251 | 248 | 236 | o |
| Letts | City | Louisa | 392 | 389 | 363 | o |
| Lewis | City | Cass | 438 | 432 | 426 | o |
| Libertyville | City | Jefferson | 325 | 312 | 311 | o |
| Lidderdale | City | Carroll | 186 | 178 | 172 | o |
| Lime Springs | City | Howard | 496 | 478 | 468 | o |
| Lincoln | City | Tama | 182 | 158 | 152 | o |
| Linden | City | Dallas | 226 | 265 | 269 | o |
| Lineville | City | Wayne | 273 | 231 | 225 | o |
| Linn Grove | City | Buena Vista | 211 | 210 | 210 | o |
| Lisbon | City | Linn | 1,898 | 1,962 | 2,018 | o |
| Liscomb | City | Marshall | 272 | 270 | 267 | o |
| Little Rock | City | Lyon | 489 | 470 | 447 | o |
| Little Sioux | City | Harrison | 217 | 205 | 199 | o |
| Livermore | City | Humboldt | 431 | 376 | 355 | o |
| Lockridge | City | Jefferson | 275 | 263 | 258 | o |
| Logan | City | Harrison | 1,546 | 1,456 | 1,407 | o |
| Lohrville | City | Calhoun | 426 | 364 | 338 | o |
| Lone Rock | City | Kossuth | 157 | 151 | 143 | o |
| Lone Tree | City | Johnson | 1,163 | 1,139 | 1,182 | o |
| Long Grove | City | Scott | 603 | 732 | 765 | o |
| Lorimor | City | Union | 427 | 417 | 416 | o |
| Lost Nation | City | Clinton | 497 | 472 | 458 | o |
| Lovilia | City | Monroe | 580 | 546 | 522 | o |
| Low Moor | City | Clinton | 240 | 228 | 220 | o |
| Lowden | City | Cedar | 797 | 803 | 793 | o |
| Lu Verne | City | 299 | 286 | 228 | o | |
| Luana | City | Clayton | 249 | 237 | 239 | o |
| Lucas | City | Lucas | 243 | 253 | 243 | o |
| Luther | City | Boone | 158 | 152 | 143 | o |
| Luxemburg | City | Dubuque | 246 | 239 | 240 | o |
| Luzerne | City | Benton | 105 | 102 | 100 | o |
| Lynnville | City | Jasper | 377 | 383 | 369 | o |
| Lytton | City | 305 | 270 | 254 | o | |
| Macedonia | City | Pottawattamie | 325 | 315 | 306 | o |
| Macksburg | City | Madison | 142 | 141 | 125 | o |
| Madrid | City | Boone | 2,425 | 2,389 | 2,359 | o |
| Magnolia | City | Harrison | 199 | 195 | 189 | o |
| Maharishi Vedic City | City | 71 | 135 | 353 | o | |
| Malcom | City | Poweshiek | 352 | 304 | 295 | o |
| Mallard | City | Palo Alto | 298 | 273 | 264 | o |
| Maloy | City | Ringgold | 28 | 33 | 29 | o |
| Malvern | City | Mills | 1,256 | 1,301 | 1,301 | o |
| Manchester | City | Delaware | 5,279 | 4,946 | 4,872 | o |
| Manilla | City | Crawford | 841 | 815 | 807 | o |
| Manly | City | Worth | 1,342 | 1,338 | 1,322 | o |
| Manning | City | Carroll | 1,493 | 1,490 | 1,465 | o |
| Manson | City | Calhoun | 1,893 | 1,722 | 1,620 | o |
| Mapleton | City | Monona | 1,322 | 1,206 | 1,147 | o |
| Maquoketa | City | Jackson | 6,135 | 5,993 | 5,801 | o |
| Marathon | City | Buena Vista | 302 | 292 | 291 | o |
| Marble Rock | City | Floyd | 326 | 319 | 322 | o |
| Marcus | City | Cherokee | 1,139 | 1,046 | 1,017 | o |
| Marengo | City | Iowa | 2,535 | 2,522 | 2,508 | o |
| Marion | City | Linn | 26,475 | 30,410 | 33,452 | o |
| Marne | City | Cass | 149 | 143 | 140 | o |
| Marquette | City | Clayton | 484 | 444 | 430 | o |
| Marshalltown | City | Marshall | 26,023 | 25,679 | 25,814 | o |
| Martelle | City | Jones | 280 | 254 | 254 | o |
| Martensdale | City | Warren | 467 | 464 | 459 | o |
| Martinsburg | City | Keokuk | 126 | 118 | 116 | o |
| Marysville | City | Marion | 54 | 53 | 52 | o |
| Mason City | City | Cerro Gordo | 29,279 | 27,771 | 27,267 | o |
| Masonville | City | Delaware | 104 | 102 | 100 | o |
| Massena | City | Cass | 414 | 399 | 392 | o |
| Matlock | City | Sioux | 83 | 83 | 81 | o |
| Maurice | City | Sioux | 254 | 261 | 258 | o |
| Maxwell | City | Story | 812 | 808 | 842 | o |
| Maynard | City | Fayette | 500 | 455 | 433 | o |
| Maysville | City | Scott | 163 | 159 | 163 | o |
| McCallsburg | City | Story | 318 | 325 | 335 | o |
| McCausland | City | Scott | 299 | 294 | 303 | o |
| McClelland | City | Pottawattamie | 129 | 125 | 122 | o |
| McGregor | City | Clayton | 871 | 900 | 876 | o |
| McIntire | City | Mitchell | 173 | 142 | 141 | o |
| Mechanicsville | City | Cedar | 1,173 | 1,153 | 1,140 | o |
| Mediapolis | City | Des Moines | 1,644 | 1,574 | 1,623 | o |
| Melbourne | City | Marshall | 794 | 787 | 790 | o |
| Melcher-Dallas | City | Marion | 1,298 | 1,249 | 1,239 | o |
| Melrose | City | Monroe | 130 | 123 | 119 | o |
| Melvin | City | Osceola | 243 | 238 | 227 | o |
| Menlo | City | Guthrie | 365 | 364 | 348 | o |
| Meriden | City | Cherokee | 184 | 175 | 165 | o |
| Merrill | City | Plymouth | 754 | 760 | 729 | o |
| Meservey | City | Cerro Gordo | 252 | 229 | 220 | o |
| Middletown | City | Des Moines | 535 | 515 | 544 | o |
| Miles | City | Jackson | 462 | 453 | 440 | o |
| Milford | City | Dickinson | 2,476 | 2,439 | 2,432 | o |
| Millersburg | City | Iowa | 184 | 188 | 186 | o |
| Millerton | City | Wayne | 48 | 42 | 41 | o |
| Millville | City | Clayton | 23 | 22 | 21 | o |
| Milo | City | Warren | 839 | 830 | 828 | o |
| Milton | City | Van Buren | 550 | 490 | 491 | o |
| Minburn | City | Dallas | 391 | 444 | 457 | o |
| Minden | City | Pottawattamie | 564 | 555 | 542 | o |
| Mingo | City | Jasper | 269 | 270 | 261 | o |
| Missouri Valley | City | Harrison | 2,992 | 2,834 | 2,746 | o |
| Mitchell | City | Mitchell | 155 | 149 | 148 | o |
| Mitchellville | City | 2,037 | 2,099 | 2,127 | o | |
| Modale | City | Harrison | 303 | 288 | 282 | o |
| Mondamin | City | Harrison | 423 | 405 | 393 | o |
| Monmouth | City | Jackson | 180 | 181 | 173 | o |
| Monona | City | Clayton | 1,550 | 1,436 | 1,416 | o |
| Monroe | City | Jasper | 1,808 | 1,805 | 1,813 | o |
| Montezuma | City | Poweshiek | 1,457 | 1,392 | 1,341 | o |
| Monticello | City | Jones | 3,670 | 3,663 | 3,701 | o |
| Montour | City | Tama | 285 | 285 | 273 | o |
| Montrose | City | Lee | 957 | 936 | 916 | o |
| Moorhead | City | Monona | 232 | 204 | 193 | o |
| Moorland | City | Webster | 201 | 187 | 184 | o |
| Moravia | City | Appanoose | 693 | 694 | 658 | o |
| Morley | City | Jones | 88 | 92 | 91 | o |
| Morning Sun | City | Louisa | 872 | 847 | 803 | o |
| Morrison | City | Grundy | 98 | 88 | 85 | o |
| Moulton | City | Appanoose | 658 | 670 | 637 | o |
| Mount Auburn | City | Benton | 160 | 165 | 163 | o |
| Mount Ayr | City | Ringgold | 1,893 | 1,807 | 1,730 | o |
| Mount Pleasant | City | Henry | 8,759 | 8,782 | 8,673 | o |
| Mount Sterling | City | Van Buren | 40 | 36 | 36 | o |
| Mount Union | City | Henry | 132 | 127 | 122 | o |
| Mount Vernon | City | Linn | 3,810 | 4,110 | 4,185 | o |
| Moville | City | Woodbury | 1,583 | 1,458 | 1,497 | o |
| Murray | City | Clarke | 766 | 778 | 794 | o |
| Muscatine | City | Muscatine | 22,714 | 22,290 | 22,653 | o |
| Mystic | City | Appanoose | 588 | 602 | 569 | o |
| Nashua | City | Chickasaw | 1,624 | 1,534 | 1,494 | o |
| Nemaha | City | Sac | 99 | 92 | 87 | o |
| Neola | City | Pottawattamie | 852 | 820 | 824 | o |
| Nevada | City | Story | 6,667 | 6,528 | 6,736 | o |
| New Albin | City | Allamakee | 527 | 517 | 501 | o |
| New Hampton | City | Chickasaw | 3,704 | 3,445 | 3,397 | o |
| New Hartford | City | Butler | 659 | 627 | 581 | o |
| New Liberty | City | Scott | 121 | 134 | 134 | o |
| New London | City | Henry | 1,934 | 1,844 | 1,793 | o |
| New Market | City | Taylor | 456 | 404 | 395 | o |
| New Providence | City | Hardin | 227 | 218 | 210 | o |
| New Sharon | City | Mahaska | 1,304 | 1,299 | 1,295 | o |
| New Vienna | City | Dubuque | 394 | 391 | 394 | o |
| New Virginia | City | Warren | 469 | 478 | 486 | o |
| Newell | City | Buena Vista | 887 | 856 | 864 | o |
| Newhall | City | Benton | 886 | 972 | 957 | o |
| Newton | City | Jasper | 15,612 | 15,328 | 14,841 | o |
| Nichols | City | Muscatine | 377 | 358 | 358 | o |
| Nodaway | City | Adams | 132 | 126 | 118 | o |
| Nora Springs | City | 1,532 | 1,452 | 1,414 | o | |
| North Buena Vista | City | Clayton | 124 | 98 | 92 | o |
| North English | City | 991 | 991 | 980 | o | |
| North Liberty | City | Johnson | 5,371 | 8,806 | 12,413 | o |
| North Washington | City | Chickasaw | 118 | 103 | 97 | o |
| Northboro | City | Page | 60 | 58 | 54 | o |
| Northwood | City | Worth | 2,050 | 2,010 | 1,984 | o |
| Norwalk | City | Warren | 7,055 | 7,898 | 9,016 | o |
| Norway | City | Benton | 601 | 609 | 603 | o |
| Numa | City | Appanoose | 111 | 111 | 105 | o |
| Oakland | City | Pottawattamie | 1,487 | 1,422 | 1,381 | o |
| Oakland Acres | City | Jasper | 165 | 163 | 160 | o |
| Oakville | City | Louisa | 439 | 420 | 391 | o |
| Ocheyedan | City | Osceola | 536 | 501 | 480 | o |
| Odebolt | City | Sac | 1,153 | 1,027 | 978 | o |
| Oelwein | City | Fayette | 6,692 | 6,295 | 5,993 | o |
| Ogden | City | Boone | 2,023 | 1,995 | 1,936 | o |
| Okoboji | City | Dickinson | 849 | 978 | 941 | o |
| Olds | City | Henry | 249 | 242 | 233 | o |
| Olin | City | Jones | 716 | 702 | 701 | o |
| Ollie | City | Keokuk | 224 | 166 | 157 | o |
| Onawa | City | Monona | 3,105 | 2,878 | 2,705 | o |
| Onslow | City | Jones | 223 | 215 | 214 | o |
| Orange City | City | Sioux | 5,630 | 5,777 | 5,814 | o |
| Orchard | City | Mitchell | 88 | 88 | 88 | o |
| Orient | City | Adair | 402 | 388 | 370 | o |
| Orleans | City | Dickinson | 623 | 610 | 591 | o |
| Osage | City | Mitchell | 3,463 | 3,416 | 3,431 | o |
| Osceola | City | Clarke | 4,744 | 4,741 | 4,768 | o |
| Oskaloosa | City | Mahaska | 11,073 | 10,964 | 10,895 | o |
| Ossian | City | Winneshiek | 853 | 821 | 799 | o |
| Osterdock | City | Clayton | 50 | 50 | 48 | o |
| Otho | City | Webster | 571 | 537 | 534 | o |
| Oto | City | Woodbury | 145 | 144 | 145 | o |
| Ottosen | City | Humboldt | 61 | 47 | 45 | o |
| Ottumwa | City | Wapello | 24,996 | 24,656 | 24,329 | o |
| Owasa | City | Hardin | 38 | 37 | 35 | o |
| Oxford | City | Johnson | 711 | 684 | 697 | o |
| Oxford Junction | City | Jones | 573 | 552 | 547 | o |
| Oyens | City | Plymouth | 132 | 122 | 115 | o |
| Pacific Junction | City | Mills | 507 | 508 | 507 | o |
| Packwood | City | Jefferson | 223 | 215 | 212 | o |
| Palmer | City | Pocahontas | 214 | 187 | 170 | o |
| Palo | City | Linn | 616 | 830 | 983 | o |
| Panama | City | Shelby | 212 | 194 | 186 | o |
| Panora | City | Guthrie | 1,175 | 1,170 | 1,146 | o |
| Panorama Park | City | Scott | 131 | 128 | 129 | o |
| Parkersburg | City | Butler | 1,889 | 1,838 | 2,163 | o |
| Parnell | City | Iowa | 220 | 216 | 214 | o |
| Paton | City | Greene | 265 | 255 | 239 | o |
| Patterson | City | Madison | 126 | 133 | 136 | o |
| Paullina | City | O'Brien | 1,126 | 1,020 | 981 | o |
| Pella | City | Marion | 9,933 | 10,027 | 10,207 | o |
| Peosta | City | Dubuque | 654 | 972 | 1,237 | o |
| Perry | City | Dallas | 7,635 | 9,043 | 9,295 | o |
| Persia | City | Harrison | 363 | 342 | 332 | o |
| Peterson | City | Clay | 372 | 353 | 336 | o |
| Pierson | City | Woodbury | 371 | 356 | 350 | o |
| Pilot Mound | City | Boone | 214 | 206 | 197 | o |
| Pioneer | City | Humboldt | 21 | 20 | 19 | o |
| Pisgah | City | Harrison | 316 | 309 | 300 | o |
| Plainfield | City | Bremer | 438 | 427 | 417 | o |
| Plano | City | Appanoose | 58 | 58 | 55 | o |
| Pleasant Hill | City | Polk | 5,194 | 6,334 | 8,424 | o |
| Pleasant Plain | City | Jefferson | 131 | 126 | 125 | o |
| Pleasanton | City | Decatur | 37 | 28 | 27 | o |
| Pleasantville | City | Marion | 1,568 | 1,577 | 1,581 | o |
| Plover | City | Pocahontas | 95 | 88 | 63 | o |
| Plymouth | City | Cerro Gordo | 429 | 425 | 409 | o |
| Pocahontas | City | Pocahontas | 1,970 | 1,842 | 1,750 | o |
| Polk City | City | Polk | 2,349 | 2,859 | 3,257 | o |
| Pomeroy | City | Calhoun | 710 | 642 | 598 | o |
| Popejoy | City | Franklin | 78 | 79 | 78 | o |
| Portsmouth | City | Shelby | 225 | 208 | 196 | o |
| Postville | City | 2,273 | 2,274 | 2,255 | o | |
| Prairie City | City | Jasper | 1,365 | 1,383 | 1,426 | o |
| Prairieburg | City | Linn | 172 | 168 | 167 | o |
| Prescott | City | Adams | 266 | 253 | 237 | o |
| Preston | City | Jackson | 949 | 934 | 905 | o |
| Primghar | City | O'Brien | 891 | 826 | 810 | o |
| Princeton | City | Scott | 946 | 935 | 971 | o |
| Promise City | City | Wayne | 105 | 102 | 100 | o |
| Protivin | City | 317 | 311 | 301 | o | |
| Pulaski | City | Davis | 252 | 252 | 271 | o |
| Quasqueton | City | Buchanan | 574 | 478 | 485 | o |
| Quimby | City | Cherokee | 368 | 344 | 323 | o |
| Radcliffe | City | Hardin | 607 | 567 | 555 | o |
| Rake | City | Winnebago | 228 | 211 | 200 | o |
| Ralston | City | 98 | 82 | 78 | o | |
| Randalia | City | Fayette | 84 | 78 | 68 | o |
| Randall | City | Hamilton | 143 | 142 | 136 | o |
| Randolph | City | Fremont | 209 | 175 | 166 | o |
| Rathbun | City | Appanoose | 88 | 88 | 83 | o |
| Raymond | City | Black Hawk | 537 | 634 | 735 | o |
| Readlyn | City | Bremer | 786 | 758 | 748 | o |
| Reasnor | City | Jasper | 194 | 195 | 187 | o |
| Red Oak | City | Montgomery | 6,209 | 5,847 | 5,626 | o |
| Redding | City | Ringgold | 78 | 68 | 65 | o |
| Redfield | City | Dallas | 833 | 983 | 1,007 | o |
| Reinbeck | City | Grundy | 1,751 | 1,674 | 1,641 | o |
| Rembrandt | City | Buena Vista | 228 | 218 | 221 | o |
| Remsen | City | Plymouth | 1,762 | 1,696 | 1,633 | o |
| Renwick | City | Humboldt | 306 | 270 | 254 | o |
| Rhodes | City | Marshall | 294 | 291 | 293 | o |
| Riceville | City | 840 | 822 | 799 | o | |
| Richland | City | Keokuk | 584 | 571 | 555 | o |
| Rickardsville | City | Dubuque | 193 | 172 | 179 | o |
| Ricketts | City | Crawford | 144 | 138 | 133 | o |
| Ridgeway | City | Winneshiek | 293 | 285 | 280 | o |
| Rinard | City | Calhoun | 72 | 65 | 60 | o |
| Ringsted | City | Emmet | 437 | 422 | 405 | o |
| Rippey | City | Greene | 319 | 295 | 275 | o |
| Riverdale | City | Scott | 651 | 606 | 596 | o |
| Riverside | City | Washington | 947 | 943 | 1,008 | o |
| Riverton | City | Fremont | 304 | 283 | 274 | o |
| Robins | City | Linn | 1,853 | 2,386 | 2,960 | o |
| Rock Falls | City | Cerro Gordo | 170 | 159 | 153 | o |
| Rock Rapids | City | Lyon | 2,573 | 2,529 | 2,435 | o |
| Rock Valley | City | Sioux | 2,905 | 3,042 | 3,159 | o |
| Rockford | City | Floyd | 907 | 891 | 872 | o |
| Rockwell | City | Cerro Gordo | 989 | 970 | 981 | o |
| Rockwell City | City | Calhoun | 2,224 | 2,060 | 1,950 | o |
| Rodman | City | Palo Alto | 56 | 53 | 51 | o |
| Rodney | City | Monona | 74 | 69 | 60 | o |
| Roland | City | Story | 1,324 | 1,315 | 1,340 | o |
| Rolfe | City | Pocahontas | 675 | 601 | 567 | o |
| Rome | City | Henry | 116 | 117 | 112 | o |
| Rose Hill | City | Mahaska | 205 | 206 | 202 | o |
| Rossie | City | Clay | 58 | 56 | 55 | o |
| Rowan | City | Wright | 218 | 203 | 192 | o |
| Rowley | City | Buchanan | 290 | 281 | 279 | o |
| Royal | City | Clay | 482 | 429 | 416 | o |
| Rudd | City | Floyd | 431 | 407 | 392 | o |
| Runnells | City | Polk | 342 | 362 | 389 | o |
| Russell | City | Lucas | 559 | 583 | 560 | o |
| Ruthven | City | Palo Alto | 767 | 708 | 682 | o |
| Rutland | City | Humboldt | 145 | 128 | 122 | o |
| Ryan | City | Delaware | 405 | 374 | 362 | o |
| Sabula | City | Jackson | 670 | 660 | 641 | o |
| Sac City | City | Sac | 2,368 | 2,152 | 2,081 | o |
| Sageville | City | Dubuque | 224 | 217 | 212 | o |
| Salem | City | Henry | 464 | 457 | 443 | o |
| Salix | City | Woodbury | 397 | 386 | 387 | o |
| Sanborn | City | O'Brien | 1,357 | 1,292 | 1,308 | o |
| Sandyville | City | Warren | 61 | 62 | 61 | o |
| Scarville | City | Winnebago | 97 | 91 | 86 | o |
| Schaller | City | Sac | 779 | 720 | 681 | o |
| Schleswig | City | Crawford | 833 | 814 | 818 | o |
| Scranton | City | Greene | 604 | 547 | 511 | o |
| Searsboro | City | Poweshiek | 159 | 154 | 149 | o |
| Sergeant Bluff | City | Woodbury | 3,326 | 3,753 | 4,027 | o |
| Seymour | City | Wayne | 810 | 758 | 744 | o |
| Shambaugh | City | Page | 188 | 178 | 167 | o |
| Shannon City | City | 77 | 74 | 77 | o | |
| Sharpsburg | City | Taylor | 98 | 94 | 91 | o |
| Sheffield | City | Franklin | 930 | 990 | 1,004 | o |
| Shelby | City | 696 | 666 | 636 | o | |
| Sheldahl | City | 336 | 312 | 317 | o | |
| Sheldon | City | 5,023 | 4,907 | 4,838 | o | |
| Shell Rock | City | Butler | 1,298 | 1,239 | 1,183 | o |
| Shellsburg | City | Benton | 938 | 1,006 | 1,023 | o |
| Shenandoah | City | 5,546 | 5,118 | 4,832 | o | |
| Sherrill | City | Dubuque | 197 | 176 | 176 | o |
| Shueyville | City | Johnson | 338 | 441 | 538 | o |
| Sibley | City | Osceola | 2,796 | 2,665 | 2,577 | o |
| Sidney | City | Fremont | 1,300 | 1,162 | 1,109 | o |
| Sigourney | City | Keokuk | 2,209 | 2,108 | 2,062 | o |
| Silver City | City | Mills | 259 | 260 | 263 | o |
| Sioux Center | City | Sioux | 6,057 | 6,486 | 6,704 | o |
| Sioux City | City | 85,060 | 82,039 | 82,903 | o | |
| Sioux Rapids | City | Buena Vista | 720 | 685 | 694 | o |
| Slater | City | Story | 1,306 | 1,503 | 1,558 | o |
| Sloan | City | Woodbury | 1,033 | 1,009 | 1,023 | o |
| Smithland | City | Woodbury | 221 | 215 | 213 | o |
| Soldier | City | Monona | 207 | 195 | 183 | o |
| Solon | City | Johnson | 1,206 | 1,413 | 1,734 | o |
| Somers | City | Calhoun | 165 | 151 | 132 | o |
| South English | City | Keokuk | 213 | 209 | 182 | o |
| Spencer | City | Clay | 11,330 | 11,030 | 10,975 | o |
| Spillville | City | Winneshiek | 386 | 372 | 368 | o |
| Spirit Lake | City | Dickinson | 4,273 | 4,527 | 4,594 | o |
| Spragueville | City | Jackson | 89 | 87 | 83 | o |
| Spring Hill | City | Warren | 92 | 92 | 91 | o |
| Springbrook | City | Jackson | 181 | 181 | 183 | o |
| Springville | City | Linn | 1,096 | 1,007 | 1,018 | o |
| St. Ansgar | City | Mitchell | 1,032 | 962 | 1,025 | o |
| St. Anthony | City | Marshall | 109 | 187 | 186 | o |
| St. Charles | City | Madison | 621 | 655 | 685 | o |
| St. Donatus | City | Jackson | 140 | 156 | 152 | o |
| St. Lucas | City | Fayette | 178 | 169 | 161 | o |
| St. Marys | City | Warren | 134 | 129 | 127 | o |
| St. Olaf | City | Clayton | 136 | 124 | 118 | o |
| St. Paul | City | Lee | 118 | 119 | 116 | o |
| Stacyville | City | Mitchell | 471 | 480 | 468 | o |
| Stanhope | City | Hamilton | 488 | 460 | 436 | o |
| Stanley | City | 128 | 124 | 123 | o | |
| Stanton | City | Montgomery | 714 | 698 | 680 | o |
| Stanwood | City | Cedar | 680 | 640 | 628 | o |
| State Center | City | Marshall | 1,349 | 1,323 | 1,336 | o |
| Steamboat Rock | City | Hardin | 336 | 323 | 310 | o |
| Stockport | City | Van Buren | 284 | 280 | 281 | o |
| Stockton | City | Muscatine | 186 | 180 | 182 | o |
| Storm Lake | City | Buena Vista | 10,075 | 9,722 | 9,540 | o |
| Story City | City | Story | 3,236 | 3,300 | 3,390 | o |
| Stout | City | Grundy | 217 | 213 | 213 | o |
| Stratford | City | 746 | 722 | 689 | o | |
| Strawberry Point | City | Clayton | 1,386 | 1,270 | 1,224 | o |
| Struble | City | Plymouth | 85 | 83 | 80 | o |
| Stuart | City | 1,715 | 1,694 | 1,643 | o | |
| Sully | City | Jasper | 908 | 876 | 846 | o |
| Sumner | City | 2,106 | 2,011 | 1,969 | o | |
| Superior | City | Dickinson | 142 | 129 | 123 | o |
| Sutherland | City | O'Brien | 707 | 657 | 629 | o |
| Swaledale | City | Cerro Gordo | 172 | 171 | 166 | o |
| Swan | City | Marion | 121 | 87 | 84 | o |
| Swea City | City | Kossuth | 642 | 589 | 556 | o |
| Swisher | City | Johnson | 825 | 833 | 855 | o |
| Tabor | City | 993 | 946 | 913 | o | |
| Tama | City | Tama | 2,731 | 2,612 | 2,490 | o |
| Templeton | City | Carroll | 334 | 334 | 328 | o |
| Tennant | City | Shelby | 73 | 70 | 71 | o |
| Terril | City | Dickinson | 404 | 375 | 355 | o |
| Thayer | City | Union | 66 | 54 | 54 | o |
| Thompson | City | Winnebago | 596 | 557 | 528 | o |
| Thor | City | Humboldt | 174 | 164 | 157 | o |
| Thornburg | City | Keokuk | 84 | 67 | 64 | o |
| Thornton | City | Cerro Gordo | 422 | 377 | 354 | o |
| Thurman | City | Fremont | 236 | 218 | 208 | o |
| Tiffin | City | Johnson | 1,062 | 1,579 | 1,882 | o |
| Tingley | City | Ringgold | 171 | 165 | 150 | o |
| Tipton | City | Cedar | 3,154 | 3,073 | 3,014 | o |
| Titonka | City | Kossuth | 584 | 534 | 504 | o |
| Toledo | City | Tama | 2,539 | 2,677 | 2,605 | o |
| Toronto | City | Clinton | 134 | 133 | 129 | o |
| Traer | City | Tama | 1,594 | 1,574 | 1,541 | o |
| Treynor | City | Pottawattamie | 941 | 894 | 880 | o |
| Tripoli | City | Bremer | 1,310 | 1,256 | 1,236 | o |
| Truesdale | City | Buena Vista | 91 | 87 | 87 | o |
| Truro | City | Madison | 427 | 470 | 475 | o |
| Turin | City | Monona | 75 | 71 | 66 | o |
| Udell | City | Appanoose | 58 | 49 | 46 | o |
| Underwood | City | Pottawattamie | 692 | 799 | 840 | o |
| Union | City | Hardin | 427 | 397 | 381 | o |
| Unionville | City | Appanoose | 127 | 127 | 121 | o |
| University Heights | City | Johnson | 987 | 991 | 1,050 | o |
| University Park | City | Mahaska | 536 | 522 | 529 | o |
| Urbana | City | Benton | 1,027 | 1,321 | 1,430 | o |
| Urbandale | City | 29,262 | 35,722 | 38,677 | o | |
| Ute | City | Monona | 378 | 342 | 322 | o |
| Vail | City | Crawford | 452 | 446 | 434 | o |
| Valeria | City | Jasper | 62 | 63 | 60 | o |
| Van Horne | City | Benton | 716 | 737 | 728 | o |
| Van Meter | City | Dallas | 942 | 1,109 | 1,194 | o |
| Van Wert | City | Decatur | 231 | 212 | 211 | o |
| Varina | City | Pocahontas | 90 | 81 | 76 | o |
| Ventura | City | Cerro Gordo | 671 | 674 | 716 | o |
| Victor | City | 952 | 993 | 977 | o | |
| Villisca | City | Montgomery | 1,344 | 1,286 | 1,226 | o |
| Vincent | City | Webster | 158 | 151 | 149 | o |
| Vining | City | Tama | 70 | 54 | 49 | o |
| Vinton | City | Benton | 5,109 | 5,191 | 5,096 | o |
| Volga | City | Clayton | 247 | 233 | 217 | o |
| Wadena | City | Fayette | 243 | 224 | 217 | o |
| Wahpeton | City | Dickinson | 462 | 443 | 428 | o |
| Walcott | City | 1,528 | 1,527 | 1,641 | o | |
| Walford | City | 1,215 | 1,395 | 1,474 | o | |
| Walker | City | Linn | 753 | 731 | 771 | o |
| Wall Lake | City | Sac | 848 | 760 | 727 | o |
| Wallingford | City | Emmet | 210 | 196 | 188 | o |
| Walnut | City | Pottawattamie | 877 | 735 | 721 | o |
| Wapello | City | Louisa | 2,127 | 2,029 | 1,908 | o |
| Washington | City | Washington | 7,047 | 7,066 | 7,197 | o |
| Washta | City | Cherokee | 282 | 242 | 225 | o |
| Waterloo | City | Black Hawk | 68,756 | 66,514 | 66,761 | o |
| Waterville | City | Allamakee | 141 | 136 | 132 | o |
| Waucoma | City | Fayette | 298 | 248 | 236 | o |
| Waukee | City | Dallas | 5,451 | 9,186 | 12,826 | o |
| Waukon | City | Allamakee | 4,135 | 3,938 | 3,871 | o |
| Waverly | City | Bremer | 8,968 | 9,190 | 9,155 | o |
| Wayland | City | Henry | 948 | 942 | 932 | o |
| Webb | City | Clay | 165 | 152 | 148 | o |
| Webster | City | Keokuk | 111 | 109 | 105 | o |
| Webster City | City | Hamilton | 8,180 | 7,932 | 7,642 | o |
| Weldon | City | Decatur | 145 | 143 | 140 | o |
| Wellman | City | Washington | 1,425 | 1,445 | 1,412 | o |
| Wellsburg | City | Grundy | 722 | 678 | 675 | o |
| Welton | City | Clinton | 163 | 161 | 157 | o |
| Wesley | City | Kossuth | 467 | 430 | 405 | o |
| West Bend | City | 834 | 810 | 795 | o | |
| West Branch | City | 2,191 | 2,238 | 2,307 | o | |
| West Burlington | City | Des Moines | 3,161 | 3,317 | 3,332 | o |
| West Chester | City | Washington | 159 | 159 | 157 | o |
| West Des Moines | City | 47,189 | 52,792 | 56,954 | o | |
| West Liberty | City | Muscatine | 3,329 | 3,551 | 3,658 | o |
| West Okoboji | City | Dickinson | 432 | 404 | 401 | o |
| West Point | City | Lee | 980 | 939 | 912 | o |
| West Union | City | Fayette | 2,549 | 2,441 | 2,397 | o |
| Westfield | City | Plymouth | 189 | 186 | 178 | o |
| Westgate | City | Fayette | 234 | 225 | 214 | o |
| Westphalia | City | Shelby | 160 | 147 | 139 | o |
| Westside | City | Crawford | 327 | 325 | 321 | o |
| Westwood | City | Henry | 127 | 124 | 237 | o |
| What Cheer | City | Keokuk | 678 | 643 | 622 | o |
| Wheatland | City | Clinton | 772 | 759 | 742 | o |
| Whiting | City | Monona | 801 | 750 | 702 | o |
| Whittemore | City | Kossuth | 530 | 487 | 466 | o |
| Whitten | City | Hardin | 160 | 138 | 132 | o |
| Willey | City | Carroll | 103 | 98 | 100 | o |
| Williams | City | Hamilton | 427 | 401 | 376 | o |
| Williamsburg | City | Iowa | 2,634 | 2,746 | 2,820 | o |
| Williamson | City | Lucas | 163 | 164 | 157 | o |
| Wilton | City | 2,824 | 2,797 | 2,839 | o | |
| Windsor Heights | City | Polk | 4,886 | 4,595 | 4,627 | o |
| Winfield | City | Henry | 1,135 | 1,094 | 1,059 | o |
| Winterset | City | Madison | 4,770 | 4,794 | 4,830 | o |
| Winthrop | City | Buchanan | 774 | 758 | 763 | o |
| Wiota | City | Cass | 149 | 144 | 141 | o |
| Woden | City | Hancock | 243 | 227 | 214 | o |
| Woodbine | City | Harrison | 1,571 | 1,568 | 1,539 | o |
| Woodburn | City | Clarke | 244 | 240 | 238 | o |
| Woodward | City | Dallas | 1,202 | 1,332 | 1,387 | o |
| Woolstock | City | Wright | 204 | 197 | 186 | o |
| Worthington | City | Dubuque | 381 | 369 | 370 | o |
| Wyoming | City | Jones | 626 | 614 | 589 | o |
| Yale | City | Guthrie | 287 | 271 | 256 | o |
| Yetter | City | Calhoun | 36 | 30 | 28 | o |
| Yorktown | City | Page | 82 | 79 | 74 | o |
| Zearing | City | Story | 617 | 560 | 566 | o |
| Zwingle | City | 100 | 110 | 107 | o |
Source: US Census Bureau (web).
2010-11-23WWW.CITYPOPULATION.DE