All counties in the State of Iowa.
| Name | Status | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|
| Adair | County | 8,252 | 7,682 | 7,572 | o |
| Adams | County | 4,479 | 4,029 | 4,001 | o |
| Allamakee | County | 14,687 | 14,330 | 14,253 | o |
| Appanoose | County | 13,715 | 12,887 | 12,874 | o |
| Audubon | County | 6,826 | 6,119 | 6,027 | o |
| Benton | County | 25,312 | 26,076 | 26,113 | o |
| Black Hawk | County | 127,990 | 131,090 | 131,394 | o |
| Boone | County | 26,206 | 26,306 | 26,329 | o |
| Bremer | County | 23,361 | 24,276 | 24,372 | o |
| Buchanan | County | 21,092 | 20,958 | 20,883 | o |
| Buena Vista | County | 20,415 | 20,260 | 20,294 | o |
| Butler | County | 15,307 | 14,867 | 14,951 | o |
| Calhoun | County | 11,114 | 10,177 | 10,067 | o |
| Carroll | County | 21,433 | 20,816 | 20,829 | o |
| Cass | County | 14,689 | 13,956 | 13,783 | o |
| Cedar | County | 18,181 | 18,499 | 18,407 | o |
| Cerro Gordo | County | 46,454 | 44,151 | 43,994 | o |
| Cherokee | County | 13,032 | 12,072 | 12,029 | o |
| Chickasaw | County | 13,095 | 12,439 | 12,412 | o |
| Clarke | County | 9,131 | 9,286 | 9,312 | o |
| Clay | County | 17,369 | 16,667 | 16,611 | o |
| Clayton | County | 18,667 | 18,129 | 17,964 | o |
| Clinton | County | 50,159 | 49,116 | 49,086 | o |
| Crawford | County | 16,945 | 17,096 | 17,226 | o |
| Dallas | County | 41,109 | 66,135 | 69,714 | o |
| Davis | County | 8,541 | 8,753 | 8,750 | o |
| Decatur | County | 8,689 | 8,457 | 8,269 | o |
| Delaware | County | 18,422 | 17,764 | 17,662 | o |
| Des Moines | County | 42,359 | 40,325 | 40,119 | o |
| Dickinson | County | 16,429 | 16,667 | 16,899 | o |
| Dubuque | County | 89,133 | 93,653 | 94,436 | o |
| Emmet | County | 11,022 | 10,302 | 10,099 | o |
| Fayette | County | 22,020 | 20,880 | 20,976 | o |
| Floyd | County | 16,898 | 16,303 | 16,085 | o |
| Franklin | County | 10,700 | 10,680 | 10,674 | o |
| Fremont | County | 8,008 | 7,441 | 7,353 | o |
| Greene | County | 10,372 | 9,336 | 9,290 | o |
| Grundy | County | 12,370 | 12,453 | 12,453 | o |
| Guthrie | County | 11,348 | 10,954 | 10,875 | o |
| Hamilton | County | 16,435 | 15,673 | 15,479 | o |
| Hancock | County | 12,107 | 11,341 | 11,265 | o |
| Hardin | County | 18,806 | 17,534 | 17,349 | o |
| Harrison | County | 15,674 | 14,935 | 14,798 | o |
| Henry | County | 20,353 | 20,145 | 20,343 | o |
| Howard | County | 9,951 | 9,566 | 9,533 | o |
| Humboldt | County | 10,384 | 9,814 | 9,800 | o |
| Ida | County | 7,839 | 7,089 | 7,083 | o |
| Iowa | County | 15,680 | 16,355 | 16,340 | o |
| Jackson | County | 20,295 | 19,848 | 19,728 | o |
| Jasper | County | 37,229 | 36,842 | 36,706 | o |
| Jefferson | County | 16,180 | 16,843 | 16,893 | o |
| Johnson | County | 110,983 | 130,882 | 133,547 | o |
| Jones | County | 20,227 | 20,638 | 20,711 | o |
| Keokuk | County | 11,405 | 10,511 | 10,360 | o |
| Kossuth | County | 17,159 | 15,543 | 15,369 | o |
| Lee | County | 38,062 | 35,862 | 35,581 | o |
| Linn | County | 191,728 | 211,226 | 214,069 | o |
| Louisa | County | 12,188 | 11,387 | 11,361 | o |
| Lucas | County | 9,412 | 8,898 | 8,833 | o |
| Lyon | County | 11,763 | 11,581 | 11,689 | o |
| Madison | County | 14,012 | 15,679 | 15,740 | o |
| Mahaska | County | 22,319 | 22,381 | 22,484 | o |
| Marion | County | 32,048 | 33,309 | 33,288 | o |
| Marshall | County | 39,332 | 40,648 | 40,879 | o |
| Mills | County | 14,543 | 15,059 | 14,984 | o |
| Mitchell | County | 10,877 | 10,772 | 10,707 | o |
| Monona | County | 10,020 | 9,243 | 9,256 | o |
| Monroe | County | 8,012 | 7,970 | 8,031 | o |
| Montgomery | County | 11,775 | 10,740 | 10,661 | o |
| Muscatine | County | 41,723 | 42,745 | 42,744 | o |
| O'Brien | County | 15,096 | 14,398 | 14,201 | o |
| Osceola | County | 7,003 | 6,462 | 6,303 | o |
| Page | County | 16,982 | 15,932 | 15,902 | o |
| Palo Alto | County | 10,143 | 9,421 | 9,348 | o |
| Plymouth | County | 24,859 | 24,986 | 24,876 | o |
| Pocahontas | County | 8,664 | 7,310 | 7,206 | o |
| Polk | County | 374,258 | 430,640 | 437,764 | o |
| Pottawattamie | County | 87,825 | 93,151 | 93,470 | o |
| Poweshiek | County | 18,829 | 18,914 | 18,836 | o |
| Ringgold | County | 5,469 | 5,131 | 5,107 | o |
| Sac | County | 11,531 | 10,350 | 10,219 | o |
| Scott | County | 158,705 | 165,224 | 167,174 | o |
| Shelby | County | 13,064 | 12,167 | 12,051 | o |
| Sioux | County | 31,596 | 33,704 | 33,962 | o |
| Story | County | 79,988 | 89,542 | 90,816 | o |
| Tama | County | 18,099 | 17,767 | 17,643 | o |
| Taylor | County | 6,958 | 6,317 | 6,247 | o |
| Union | County | 12,312 | 12,534 | 12,545 | o |
| Van Buren | County | 7,800 | 7,570 | 7,497 | o |
| Wapello | County | 36,067 | 35,625 | 35,399 | o |
| Warren | County | 40,672 | 46,225 | 46,623 | o |
| Washington | County | 20,679 | 21,704 | 21,831 | o |
| Wayne | County | 6,732 | 6,403 | 6,359 | o |
| Webster | County | 40,230 | 38,013 | 37,738 | o |
| Winnebago | County | 11,717 | 10,866 | 10,720 | o |
| Winneshiek | County | 21,291 | 21,056 | 21,039 | o |
| Woodbury | County | 103,876 | 102,172 | 102,556 | o |
| Worth | County | 7,904 | 7,598 | 7,573 | o |
| Wright | County | 14,337 | 13,229 | 13,044 | o |
| Iowa | Federal State | 2,926,538 | 3,046,857 | 3,064,097 |
All incorporated places in the State of Iowa.
| Name | Status | County | Population census 2000-04-01 | Population census 2010-04-01 | Population estimate 2011-07-01 | |
|---|---|---|---|---|---|---|
| Ackley | City | 1,809 | 1,589 | 1,579 | o | |
| Ackworth | City | Warren | 85 | 83 | 85 | o |
| Adair | City | 839 | 781 | 766 | o | |
| Adel | City | Dallas | 3,435 | 3,682 | 3,864 | o |
| Afton | City | Union | 917 | 845 | 846 | o |
| Agency | City | Wapello | 622 | 638 | 635 | o |
| Ainsworth | City | Washington | 524 | 567 | 571 | o |
| Akron | City | Plymouth | 1,489 | 1,486 | 1,480 | o |
| Albert City | City | Buena Vista | 709 | 699 | 704 | o |
| Albia | City | Monroe | 3,770 | 3,766 | 3,805 | o |
| Albion | City | Marshall | 592 | 505 | 509 | o |
| Alburnett | City | Linn | 558 | 673 | 681 | o |
| Alden | City | Hardin | 904 | 787 | 782 | o |
| Alexander | City | Franklin | 165 | 175 | 176 | o |
| Algona | City | Kossuth | 5,741 | 5,560 | 5,508 | o |
| Alleman | City | Polk | 443 | 432 | 439 | o |
| Allerton | City | Wayne | 559 | 501 | 494 | o |
| Allison | City | Butler | 1,006 | 1,029 | 1,033 | o |
| Alta | City | Buena Vista | 1,865 | 1,883 | 1,897 | o |
| Alta Vista | City | Chickasaw | 286 | 266 | 266 | o |
| Alton | City | Sioux | 1,111 | 1,216 | 1,224 | o |
| Altoona | City | Polk | 10,416 | 14,541 | 14,773 | o |
| Alvord | City | Lyon | 187 | 196 | 198 | o |
| Ames | City | Story | 50,855 | 58,965 | 59,042 | o |
| Anamosa | City | Jones | 5,506 | 5,533 | 5,526 | o |
| Andover | City | Clinton | 87 | 103 | 103 | o |
| Andrew | City | Jackson | 460 | 434 | 433 | o |
| Anita | City | Cass | 1,051 | 972 | 963 | o |
| Ankeny | City | Polk | 27,545 | 45,582 | 46,302 | o |
| Anthon | City | Woodbury | 649 | 565 | 566 | o |
| Aplington | City | Butler | 1,058 | 1,128 | 1,133 | o |
| Arcadia | City | Carroll | 443 | 484 | 485 | o |
| Archer | City | O'Brien | 126 | 131 | 129 | o |
| Aredale | City | Butler | 89 | 74 | 74 | o |
| Arion | City | Crawford | 136 | 108 | 110 | o |
| Arispe | City | Union | 89 | 100 | 101 | o |
| Arlington | City | Fayette | 490 | 429 | 431 | o |
| Armstrong | City | Emmet | 979 | 926 | 908 | o |
| Arnolds Park | City | Dickinson | 1,194 | 1,126 | 1,142 | o |
| Arthur | City | Ida | 245 | 206 | 205 | o |
| Asbury | City | Dubuque | 2,449 | 4,192 | 4,238 | o |
| Ashton | City | Osceola | 461 | 458 | 451 | o |
| Aspinwall | City | Crawford | 60 | 40 | 41 | o |
| Atalissa | City | Muscatine | 311 | 311 | 312 | o |
| Atkins | City | Benton | 986 | 1,670 | 1,673 | o |
| Atlantic | City | Cass | 7,257 | 7,112 | 7,041 | o |
| Auburn | City | Sac | 296 | 322 | 318 | o |
| Audubon | City | Audubon | 2,386 | 2,176 | 2,147 | o |
| Aurelia | City | Cherokee | 1,064 | 1,036 | 1,035 | o |
| Aurora | City | Buchanan | 194 | 185 | 185 | o |
| Avoca | City | Pottawattamie | 1,609 | 1,506 | 1,514 | o |
| Ayrshire | City | Palo Alto | 202 | 143 | 144 | o |
| Badger | City | Webster | 610 | 561 | 555 | o |
| Bagley | City | Guthrie | 354 | 303 | 302 | o |
| Baldwin | City | Jackson | 127 | 109 | 109 | o |
| Balltown | City | Dubuque | 79 | 68 | 68 | o |
| Bancroft | City | Kossuth | 808 | 732 | 724 | o |
| Bankston | City | Dubuque | 27 | 25 | 25 | o |
| Barnes City | City | 201 | 176 | 177 | o | |
| Barnum | City | Webster | 198 | 191 | 190 | o |
| Bassett | City | Chickasaw | 74 | 66 | 66 | o |
| Batavia | City | Jefferson | 500 | 499 | 497 | o |
| Battle Creek | City | Ida | 743 | 713 | 713 | o |
| Baxter | City | Jasper | 1,052 | 1,101 | 1,093 | o |
| Bayard | City | Guthrie | 536 | 471 | 468 | o |
| Beacon | City | Mahaska | 524 | 494 | 498 | o |
| Beaconsfield | City | Ringgold | 11 | 15 | 15 | o |
| Beaman | City | Grundy | 210 | 191 | 192 | o |
| Beaver | City | Boone | 53 | 48 | 48 | o |
| Bedford | City | Taylor | 1,620 | 1,440 | 1,436 | o |
| Belle Plaine | City | Benton | 2,878 | 2,534 | 2,537 | o |
| Bellevue | City | Jackson | 2,382 | 2,191 | 2,186 | o |
| Belmond | City | Wright | 2,560 | 2,376 | 2,348 | o |
| Bennett | City | Cedar | 393 | 405 | 402 | o |
| Benton | City | Ringgold | 40 | 41 | 41 | o |
| Berkley | City | Boone | 24 | 32 | 32 | o |
| Bernard | City | Dubuque | 102 | 112 | 114 | o |
| Bertram | City | Linn | 267 | 294 | 297 | o |
| Bettendorf | City | Scott | 31,258 | 33,217 | 33,599 | o |
| Bevington | City | 61 | 63 | 63 | o | |
| Birmingham | City | Van Buren | 423 | 448 | 443 | o |
| Blairsburg | City | Hamilton | 235 | 215 | 214 | o |
| Blairstown | City | Benton | 683 | 692 | 692 | o |
| Blakesburg | City | Wapello | 372 | 296 | 294 | o |
| Blanchard | City | Page | 61 | 38 | 38 | o |
| Blencoe | City | Monona | 231 | 224 | 224 | o |
| Blockton | City | Taylor | 192 | 192 | 191 | o |
| Bloomfield | City | Davis | 2,605 | 2,639 | 2,648 | o |
| Blue Grass | City | Scott | 1,171 | 1,452 | 1,470 | o |
| Bode | City | Humboldt | 327 | 302 | 301 | o |
| Bonaparte | City | Van Buren | 458 | 433 | 430 | o |
| Bondurant | City | Polk | 1,880 | 3,860 | 3,922 | o |
| Boone | City | Boone | 12,813 | 12,661 | 12,635 | o |
| Bouton | City | Dallas | 136 | 129 | 136 | o |
| Boxholm | City | Boone | 215 | 195 | 194 | o |
| Boyden | City | Sioux | 697 | 707 | 711 | o |
| Braddyville | City | Page | 176 | 159 | 160 | o |
| Bradgate | City | Humboldt | 101 | 86 | 86 | o |
| Brandon | City | Buchanan | 311 | 309 | 307 | o |
| Brayton | City | Audubon | 145 | 128 | 125 | o |
| Breda | City | Carroll | 482 | 483 | 484 | o |
| Bridgewater | City | Adair | 175 | 182 | 177 | o |
| Brighton | City | Washington | 687 | 652 | 655 | o |
| Bristow | City | Butler | 202 | 160 | 160 | o |
| Britt | City | Hancock | 2,052 | 2,069 | 2,058 | o |
| Bronson | City | Woodbury | 269 | 322 | 324 | o |
| Brooklyn | City | Poweshiek | 1,367 | 1,468 | 1,460 | o |
| Brunsville | City | Plymouth | 146 | 151 | 150 | o |
| Buck Grove | City | Crawford | 49 | 43 | 44 | o |
| Buckeye | City | Hardin | 110 | 108 | 108 | o |
| Buffalo | City | Scott | 1,387 | 1,270 | 1,284 | o |
| Buffalo Center | City | Winnebago | 962 | 905 | 898 | o |
| Burlington | City | Des Moines | 26,848 | 25,663 | 25,564 | o |
| Burt | City | Kossuth | 556 | 533 | 529 | o |
| Bussey | City | Marion | 450 | 422 | 422 | o |
| Calamus | City | Clinton | 394 | 439 | 437 | o |
| Callender | City | Webster | 430 | 376 | 371 | o |
| Calmar | City | Winneshiek | 1,058 | 978 | 976 | o |
| Calumet | City | O'Brien | 181 | 170 | 168 | o |
| Camanche | City | Clinton | 4,215 | 4,448 | 4,440 | o |
| Cambridge | City | Story | 825 | 827 | 829 | o |
| Cantril | City | Van Buren | 257 | 222 | 221 | o |
| Carbon | City | Adams | 28 | 34 | 34 | o |
| Carlisle | City | 3,566 | 3,876 | 3,918 | o | |
| Carpenter | City | Mitchell | 130 | 109 | 109 | o |
| Carroll | City | Carroll | 10,098 | 10,103 | 10,126 | o |
| Carson | City | Pottawattamie | 668 | 812 | 815 | o |
| Carter Lake | City | Pottawattamie | 3,248 | 3,785 | 3,801 | o |
| Cascade | City | 1,973 | 2,159 | 2,178 | o | |
| Casey | City | 478 | 426 | 423 | o | |
| Castalia | City | Winneshiek | 156 | 173 | 172 | o |
| Castana | City | Monona | 178 | 147 | 147 | o |
| Cedar Falls | City | Black Hawk | 36,142 | 39,260 | 39,387 | o |
| Cedar Rapids | City | Linn | 121,482 | 126,326 | 127,905 | o |
| Center Junction | City | Jones | 135 | 111 | 110 | o |
| Center Point | City | Linn | 2,006 | 2,421 | 2,452 | o |
| Centerville | City | Appanoose | 5,930 | 5,530 | 5,492 | o |
| Central City | City | Linn | 1,167 | 1,257 | 1,272 | o |
| Centralia | City | Dubuque | 101 | 134 | 134 | o |
| Chariton | City | Lucas | 4,601 | 4,321 | 4,295 | o |
| Charles City | City | Floyd | 7,812 | 7,652 | 7,544 | o |
| Charlotte | City | Clinton | 421 | 394 | 392 | o |
| Charter Oak | City | Crawford | 530 | 502 | 508 | o |
| Chatsworth | City | Sioux | 89 | 79 | 79 | o |
| Chelsea | City | Tama | 287 | 265 | 264 | o |
| Cherokee | City | Cherokee | 5,369 | 5,253 | 5,252 | o |
| Chester | City | Howard | 151 | 127 | 128 | o |
| Chillicothe | City | Wapello | 91 | 97 | 97 | o |
| Churdan | City | Greene | 418 | 386 | 384 | o |
| Cincinnati | City | Appanoose | 428 | 357 | 354 | o |
| Clare | City | Webster | 190 | 146 | 145 | o |
| Clarence | City | Cedar | 1,008 | 974 | 970 | o |
| Clarinda | City | Page | 5,690 | 5,572 | 5,588 | o |
| Clarion | City | Wright | 2,969 | 2,850 | 2,815 | o |
| Clarksville | City | Butler | 1,441 | 1,439 | 1,447 | o |
| Clayton | City | Clayton | 55 | 43 | 43 | o |
| Clear Lake | City | Cerro Gordo | 8,173 | 7,777 | 7,740 | o |
| Clearfield | City | 375 | 363 | 362 | o | |
| Cleghorn | City | Cherokee | 250 | 240 | 241 | o |
| Clemons | City | Marshall | 148 | 148 | 150 | o |
| Clermont | City | Fayette | 717 | 632 | 636 | o |
| Clinton | City | Clinton | 27,772 | 26,885 | 26,830 | o |
| Clio | City | Wayne | 91 | 80 | 80 | o |
| Clive | City | 12,796 | 15,447 | 15,858 | o | |
| Clutier | City | Tama | 229 | 213 | 212 | o |
| Coburg | City | Montgomery | 31 | 42 | 42 | o |
| Coggon | City | Linn | 749 | 658 | 667 | o |
| Coin | City | Page | 252 | 193 | 193 | o |
| Colesburg | City | Delaware | 412 | 404 | 401 | o |
| Colfax | City | Jasper | 2,257 | 2,093 | 2,075 | o |
| College Springs | City | Page | 246 | 214 | 216 | o |
| Collins | City | Story | 499 | 495 | 496 | o |
| Colo | City | Story | 886 | 876 | 877 | o |
| Columbus City | City | Louisa | 376 | 391 | 390 | o |
| Columbus Junction | City | Louisa | 1,900 | 1,899 | 1,896 | o |
| Colwell | City | Floyd | 76 | 73 | 72 | o |
| Conesville | City | Muscatine | 424 | 432 | 433 | o |
| Conrad | City | Grundy | 1,055 | 1,108 | 1,109 | o |
| Conway | City | Taylor | 63 | 41 | 41 | o |
| Coon Rapids | City | 1,305 | 1,305 | 1,308 | o | |
| Coppock | City | 57 | 47 | 47 | o | |
| Coralville | City | Johnson | 15,182 | 18,907 | 19,219 | o |
| Corning | City | Adams | 1,787 | 1,635 | 1,625 | o |
| Correctionville | City | Woodbury | 851 | 821 | 824 | o |
| Corwith | City | Hancock | 350 | 309 | 308 | o |
| Corydon | City | Wayne | 1,591 | 1,585 | 1,562 | o |
| Cotter | City | Louisa | 48 | 48 | 48 | o |
| Coulter | City | Franklin | 262 | 281 | 282 | o |
| Council Bluffs | City | Pottawattamie | 58,194 | 62,228 | 62,466 | o |
| Craig | City | Plymouth | 102 | 89 | 89 | o |
| Crawfordsville | City | Washington | 295 | 264 | 266 | o |
| Crescent | City | Pottawattamie | 520 | 617 | 619 | o |
| Cresco | City | Howard | 3,910 | 3,868 | 3,868 | o |
| Creston | City | Union | 7,597 | 7,834 | 7,841 | o |
| Cromwell | City | Union | 120 | 107 | 106 | o |
| Crystal Lake | City | Hancock | 285 | 250 | 249 | o |
| Cumberland | City | Cass | 281 | 262 | 259 | o |
| Cumming | City | Warren | 160 | 351 | 356 | o |
| Curlew | City | Palo Alto | 62 | 58 | 58 | o |
| Cushing | City | Woodbury | 246 | 220 | 221 | o |
| Cylinder | City | Palo Alto | 110 | 88 | 88 | o |
| Dakota City | City | Humboldt | 911 | 843 | 843 | o |
| Dallas Center | City | Dallas | 1,604 | 1,623 | 1,702 | o |
| Dana | City | Greene | 84 | 71 | 71 | o |
| Danbury | City | Woodbury | 384 | 348 | 348 | o |
| Danville | City | Des Moines | 914 | 934 | 931 | o |
| Davenport | City | Scott | 98,359 | 99,685 | 100,802 | o |
| Davis City | City | Decatur | 275 | 204 | 198 | o |
| Dawson | City | Dallas | 155 | 131 | 138 | o |
| Dayton | City | Webster | 887 | 837 | 830 | o |
| De Soto | City | Dallas | 1,009 | 1,050 | 1,102 | o |
| De Witt | City | Clinton | 5,056 | 5,322 | 5,310 | o |
| Decatur City | City | Decatur | 199 | 197 | 193 | o |
| Decorah | City | Winneshiek | 8,182 | 8,127 | 8,118 | o |
| Dedham | City | Carroll | 280 | 266 | 266 | o |
| Deep River | City | Poweshiek | 288 | 279 | 277 | o |
| Defiance | City | Shelby | 346 | 284 | 280 | o |
| Delaware | City | Delaware | 188 | 159 | 158 | o |
| Delhi | City | Delaware | 458 | 460 | 457 | o |
| Delmar | City | Clinton | 514 | 525 | 524 | o |
| Deloit | City | Crawford | 288 | 264 | 268 | o |
| Delphos | City | Ringgold | 25 | 25 | 25 | o |
| Delta | City | Keokuk | 410 | 328 | 323 | o |
| Denison | City | Crawford | 7,342 | 8,298 | 8,383 | o |
| Denver | City | Bremer | 1,642 | 1,780 | 1,780 | o |
| Derby | City | Lucas | 131 | 115 | 115 | o |
| Des Moines | City | Polk | 199,007 | 203,433 | 206,599 | o |
| Dexter | City | Dallas | 694 | 611 | 641 | o |
| Diagonal | City | Ringgold | 312 | 330 | 330 | o |
| Dickens | City | Clay | 202 | 185 | 184 | o |
| Dike | City | Grundy | 952 | 1,209 | 1,210 | o |
| Dixon | City | Scott | 268 | 247 | 251 | o |
| Dolliver | City | Emmet | 77 | 66 | 65 | o |
| Donahue | City | Scott | 293 | 346 | 351 | o |
| Donnellson | City | Lee | 981 | 912 | 905 | o |
| Doon | City | Lyon | 533 | 577 | 580 | o |
| Dougherty | City | Cerro Gordo | 80 | 58 | 58 | o |
| Dow City | City | Crawford | 503 | 510 | 515 | o |
| Dows | City | 675 | 538 | 532 | o | |
| Drakesville | City | Davis | 185 | 184 | 185 | o |
| Dubuque | City | Dubuque | 57,771 | 57,637 | 58,234 | o |
| Dumont | City | Butler | 676 | 637 | 640 | o |
| Duncombe | City | Webster | 474 | 410 | 405 | o |
| Dundee | City | Delaware | 179 | 174 | 173 | o |
| Dunkerton | City | Black Hawk | 752 | 852 | 857 | o |
| Dunlap | City | Harrison | 1,139 | 1,042 | 1,036 | o |
| Durango | City | Dubuque | 24 | 22 | 22 | o |
| Durant | City | 1,677 | 1,832 | 1,822 | o | |
| Dyersville | City | 4,051 | 4,058 | 4,099 | o | |
| Dysart | City | Tama | 1,303 | 1,379 | 1,373 | o |
| Eagle Grove | City | Wright | 3,712 | 3,583 | 3,539 | o |
| Earlham | City | Madison | 1,298 | 1,450 | 1,459 | o |
| Earling | City | Shelby | 471 | 437 | 434 | o |
| Earlville | City | Delaware | 900 | 812 | 809 | o |
| Early | City | Sac | 605 | 557 | 552 | o |
| East Peru | City | Madison | 153 | 125 | 125 | o |
| Eddyville | City | 1,064 | 1,024 | 1,020 | o | |
| Edgewood | City | 923 | 864 | 858 | o | |
| Elberon | City | Tama | 245 | 196 | 195 | o |
| Eldon | City | Wapello | 999 | 927 | 922 | o |
| Eldora | City | Hardin | 3,035 | 2,732 | 2,715 | o |
| Eldridge | City | Scott | 4,169 | 5,651 | 5,717 | o |
| Elgin | City | Fayette | 676 | 683 | 687 | o |
| Elk Horn | City | Shelby | 649 | 662 | 656 | o |
| Elk Run Heights | City | Black Hawk | 1,121 | 1,117 | 1,121 | o |
| Elkader | City | Clayton | 1,465 | 1,273 | 1,266 | o |
| Elkhart | City | Polk | 368 | 683 | 693 | o |
| Elkport | City | Clayton | 113 | 37 | 37 | o |
| Elliott | City | Montgomery | 402 | 350 | 347 | o |
| Ellston | City | Ringgold | 57 | 43 | 44 | o |
| Ellsworth | City | Hamilton | 532 | 531 | 526 | o |
| Elma | City | Howard | 598 | 546 | 546 | o |
| Ely | City | Linn | 1,146 | 1,776 | 1,798 | o |
| Emerson | City | Mills | 480 | 438 | 437 | o |
| Emmetsburg | City | Palo Alto | 3,904 | 3,904 | 3,903 | o |
| Epworth | City | Dubuque | 1,451 | 1,860 | 1,878 | o |
| Essex | City | Page | 884 | 798 | 800 | o |
| Estherville | City | Emmet | 6,657 | 6,360 | 6,239 | o |
| Evansdale | City | Black Hawk | 4,526 | 4,751 | 4,769 | o |
| Everly | City | Clay | 644 | 603 | 601 | o |
| Exira | City | Audubon | 810 | 840 | 830 | o |
| Exline | City | Appanoose | 191 | 160 | 157 | o |
| Fairbank | City | 1,043 | 1,113 | 1,112 | o | |
| Fairfax | City | Linn | 925 | 2,123 | 2,151 | o |
| Fairfield | City | Jefferson | 9,615 | 9,464 | 9,447 | o |
| Farley | City | Dubuque | 1,342 | 1,537 | 1,555 | o |
| Farmersburg | City | Clayton | 300 | 302 | 299 | o |
| Farmington | City | Van Buren | 756 | 664 | 658 | o |
| Farnhamville | City | 430 | 371 | 369 | o | |
| Farragut | City | Fremont | 523 | 485 | 479 | o |
| Fayette | City | Fayette | 1,351 | 1,338 | 1,342 | o |
| Fenton | City | Kossuth | 317 | 279 | 276 | o |
| Ferguson | City | Marshall | 126 | 126 | 128 | o |
| Fertile | City | Worth | 360 | 370 | 368 | o |
| Floris | City | Davis | 153 | 138 | 139 | o |
| Floyd | City | Floyd | 361 | 335 | 330 | o |
| Fonda | City | Pocahontas | 648 | 631 | 619 | o |
| Fontanelle | City | Adair | 689 | 672 | 658 | o |
| Forest City | City | 4,389 | 4,151 | 4,125 | o | |
| Fort Atkinson | City | Winneshiek | 389 | 349 | 348 | o |
| Fort Dodge | City | Webster | 26,344 | 25,206 | 24,981 | o |
| Fort Madison | City | Lee | 11,682 | 11,051 | 10,980 | o |
| Fostoria | City | Clay | 230 | 231 | 230 | o |
| Franklin | City | Lee | 136 | 143 | 143 | o |
| Fraser | City | Boone | 137 | 102 | 102 | o |
| Fredericksburg | City | Chickasaw | 984 | 931 | 933 | o |
| Frederika | City | Bremer | 199 | 183 | 183 | o |
| Fredonia | City | Louisa | 254 | 244 | 245 | o |
| Fremont | City | Mahaska | 727 | 743 | 749 | o |
| Fruitland | City | Muscatine | 701 | 977 | 977 | o |
| Galt | City | Wright | 30 | 32 | 32 | o |
| Galva | City | Ida | 368 | 434 | 434 | o |
| Garber | City | Clayton | 103 | 88 | 87 | o |
| Garden Grove | City | Decatur | 250 | 211 | 207 | o |
| Garnavillo | City | Clayton | 754 | 745 | 741 | o |
| Garner | City | Hancock | 2,922 | 3,129 | 3,114 | o |
| Garrison | City | Benton | 413 | 371 | 371 | o |
| Garwin | City | Tama | 565 | 527 | 526 | o |
| Geneva | City | Franklin | 171 | 165 | 166 | o |
| George | City | Lyon | 1,051 | 1,080 | 1,089 | o |
| Gibson | City | Keokuk | 92 | 61 | 61 | o |
| Gilbert | City | Story | 987 | 1,082 | 1,083 | o |
| Gilbertville | City | Black Hawk | 767 | 712 | 714 | o |
| Gillett Grove | City | Clay | 55 | 49 | 49 | o |
| Gilman | City | Marshall | 600 | 509 | 513 | o |
| Gilmore City | City | 556 | 504 | 499 | o | |
| Gladbrook | City | Tama | 1,015 | 945 | 941 | o |
| Glenwood | City | Mills | 5,396 | 5,269 | 5,248 | o |
| Glidden | City | Carroll | 1,253 | 1,146 | 1,149 | o |
| Goldfield | City | Wright | 680 | 635 | 627 | o |
| Goodell | City | Hancock | 174 | 139 | 138 | o |
| Goose Lake | City | Clinton | 232 | 240 | 240 | o |
| Gowrie | City | Webster | 1,038 | 1,037 | 1,026 | o |
| Graettinger | City | Palo Alto | 900 | 844 | 844 | o |
| Graf | City | Dubuque | 73 | 79 | 79 | o |
| Grafton | City | Worth | 290 | 252 | 251 | o |
| Grand Junction | City | Greene | 964 | 824 | 819 | o |
| Grand Mound | City | Clinton | 676 | 642 | 641 | o |
| Grand River | City | Decatur | 225 | 236 | 230 | o |
| Grandview | City | Louisa | 612 | 556 | 555 | o |
| Granger | City | Dallas | 594 | 1,244 | 1,294 | o |
| Grant | City | Montgomery | 102 | 92 | 92 | o |
| Granville | City | Sioux | 325 | 312 | 313 | o |
| Gravity | City | Taylor | 218 | 188 | 189 | o |
| Gray | City | Audubon | 82 | 63 | 62 | o |
| Greeley | City | Delaware | 276 | 256 | 254 | o |
| Greene | City | Butler | 1,104 | 1,130 | 1,135 | o |
| Greenfield | City | Adair | 2,129 | 1,982 | 1,943 | o |
| Greenville | City | Clay | 93 | 75 | 75 | o |
| Grimes | City | 5,123 | 8,246 | 8,378 | o | |
| Grinnell | City | Poweshiek | 9,122 | 9,218 | 9,169 | o |
| Griswold | City | Cass | 1,039 | 1,036 | 1,027 | o |
| Grundy Center | City | Grundy | 2,596 | 2,706 | 2,707 | o |
| Gruver | City | Emmet | 106 | 94 | 93 | o |
| Guernsey | City | Poweshiek | 70 | 63 | 63 | o |
| Guthrie Center | City | Guthrie | 1,668 | 1,569 | 1,561 | o |
| Guttenberg | City | Clayton | 1,992 | 1,919 | 1,908 | o |
| Halbur | City | Carroll | 213 | 246 | 246 | o |
| Hamburg | City | Fremont | 1,227 | 1,187 | 1,174 | o |
| Hamilton | City | Marion | 144 | 130 | 130 | o |
| Hampton | City | Franklin | 4,218 | 4,461 | 4,482 | o |
| Hancock | City | Pottawattamie | 207 | 196 | 197 | o |
| Hanlontown | City | Worth | 229 | 226 | 225 | o |
| Hansell | City | Franklin | 96 | 98 | 98 | o |
| Harcourt | City | Webster | 340 | 303 | 299 | o |
| Hardy | City | Humboldt | 57 | 47 | 47 | o |
| Harlan | City | Shelby | 5,282 | 5,106 | 5,053 | o |
| Harper | City | Keokuk | 134 | 114 | 113 | o |
| Harpers Ferry | City | Allamakee | 330 | 328 | 327 | o |
| Harris | City | Osceola | 200 | 170 | 167 | o |
| Hartford | City | Warren | 759 | 771 | 778 | o |
| Hartley | City | O'Brien | 1,733 | 1,672 | 1,650 | o |
| Hartwick | City | Poweshiek | 83 | 86 | 86 | o |
| Harvey | City | Marion | 277 | 235 | 235 | o |
| Hastings | City | Mills | 214 | 152 | 151 | o |
| Havelock | City | Pocahontas | 177 | 138 | 135 | o |
| Haverhill | City | Marshall | 170 | 173 | 175 | o |
| Hawarden | City | Sioux | 2,478 | 2,546 | 2,562 | o |
| Hawkeye | City | Fayette | 489 | 449 | 451 | o |
| Hayesville | City | Keokuk | 64 | 50 | 50 | o |
| Hazleton | City | Buchanan | 950 | 823 | 822 | o |
| Hedrick | City | Keokuk | 837 | 765 | 755 | o |
| Henderson | City | Mills | 171 | 185 | 184 | o |
| Hepburn | City | Page | 39 | 23 | 23 | o |
| Hiawatha | City | Linn | 6,514 | 7,024 | 7,113 | o |
| Hills | City | Johnson | 678 | 703 | 715 | o |
| Hillsboro | City | Henry | 205 | 180 | 182 | o |
| Hinton | City | Plymouth | 808 | 928 | 924 | o |
| Holland | City | Grundy | 250 | 282 | 281 | o |
| Holstein | City | Ida | 1,473 | 1,396 | 1,396 | o |
| Holy Cross | City | Dubuque | 341 | 374 | 377 | o |
| Hopkinton | City | Delaware | 681 | 628 | 624 | o |
| Hornick | City | Woodbury | 253 | 225 | 226 | o |
| Hospers | City | Sioux | 670 | 698 | 702 | o |
| Houghton | City | Lee | 130 | 146 | 146 | o |
| Hubbard | City | Hardin | 885 | 845 | 840 | o |
| Hudson | City | Black Hawk | 2,117 | 2,282 | 2,290 | o |
| Hull | City | Sioux | 1,960 | 2,175 | 2,189 | o |
| Humboldt | City | Humboldt | 4,452 | 4,689 | 4,683 | o |
| Humeston | City | Wayne | 545 | 494 | 486 | o |
| Huxley | City | Story | 2,329 | 3,317 | 3,323 | o |
| Ida Grove | City | Ida | 2,350 | 2,142 | 2,140 | o |
| Imogene | City | Fremont | 66 | 72 | 71 | o |
| Independence | City | Buchanan | 6,067 | 5,966 | 5,957 | o |
| Indianola | City | Warren | 13,178 | 14,782 | 14,932 | o |
| Inwood | City | Lyon | 875 | 814 | 820 | o |
| Ionia | City | Chickasaw | 277 | 291 | 291 | o |
| Iowa City | City | Johnson | 62,422 | 67,873 | 68,947 | o |
| Iowa Falls | City | Hardin | 5,198 | 5,238 | 5,207 | o |
| Ireton | City | Sioux | 585 | 609 | 613 | o |
| Irwin | City | Shelby | 372 | 341 | 337 | o |
| Jackson Junction | City | Winneshiek | 60 | 58 | 58 | o |
| Jamaica | City | Guthrie | 237 | 224 | 223 | o |
| Janesville | City | 829 | 930 | 930 | o | |
| Jefferson | City | Greene | 4,626 | 4,345 | 4,323 | o |
| Jesup | City | 2,212 | 2,520 | 2,517 | o | |
| Jewell Junction | City | Hamilton | 1,239 | 1,215 | 1,204 | o |
| Johnston | City | Polk | 8,935 | 17,278 | 17,552 | o |
| Joice | City | Worth | 231 | 222 | 221 | o |
| Jolley | City | Calhoun | 54 | 41 | 41 | o |
| Kalona | City | Washington | 2,293 | 2,363 | 2,380 | o |
| Kamrar | City | Hamilton | 227 | 199 | 198 | o |
| Kanawha | City | Hancock | 739 | 651 | 648 | o |
| Kellerton | City | Ringgold | 372 | 315 | 315 | o |
| Kelley | City | Story | 311 | 309 | 309 | o |
| Kellogg | City | Jasper | 606 | 599 | 594 | o |
| Kensett | City | Worth | 280 | 266 | 264 | o |
| Keokuk | City | Lee | 11,427 | 10,780 | 10,706 | o |
| Keomah Village | City | Mahaska | 97 | 84 | 84 | o |
| Keosauqua | City | Van Buren | 1,068 | 1,006 | 999 | o |
| Keota | City | Keokuk | 1,025 | 1,009 | 997 | o |
| Keswick | City | Keokuk | 295 | 246 | 242 | o |
| Keystone | City | Benton | 687 | 622 | 622 | o |
| Kimballton | City | Audubon | 342 | 322 | 317 | o |
| Kingsley | City | Plymouth | 1,250 | 1,411 | 1,405 | o |
| Kinross | City | Keokuk | 80 | 73 | 72 | o |
| Kirkman | City | Shelby | 76 | 64 | 63 | o |
| Kirkville | City | Wapello | 214 | 167 | 167 | o |
| Kiron | City | Crawford | 273 | 279 | 281 | o |
| Klemme | City | Hancock | 593 | 508 | 506 | o |
| Knierim | City | Calhoun | 70 | 60 | 60 | o |
| Knoxville | City | Marion | 7,746 | 7,313 | 7,319 | o |
| La Motte | City | Jackson | 272 | 260 | 259 | o |
| La Porte City | City | Black Hawk | 2,321 | 2,285 | 2,293 | o |
| Lacona | City | Warren | 361 | 361 | 365 | o |
| Ladora | City | Iowa | 287 | 283 | 282 | o |
| Lake City | City | Calhoun | 1,827 | 1,727 | 1,719 | o |
| Lake Mills | City | Winnebago | 2,140 | 2,100 | 2,085 | o |
| Lake Park | City | Dickinson | 1,034 | 1,105 | 1,120 | o |
| Lake View | City | Sac | 1,317 | 1,142 | 1,130 | o |
| Lakeside | City | Buena Vista | 484 | 596 | 601 | o |
| Lakota | City | Kossuth | 255 | 294 | 291 | o |
| Lambs Grove | City | Jasper | 225 | 172 | 170 | o |
| Lamoni | City | Decatur | 2,454 | 2,324 | 2,285 | o |
| Lamont | City | Buchanan | 503 | 461 | 460 | o |
| Lanesboro | City | Carroll | 152 | 121 | 121 | o |
| Lansing | City | Allamakee | 1,012 | 999 | 995 | o |
| Larchwood | City | Lyon | 788 | 866 | 873 | o |
| Larrabee | City | Cherokee | 146 | 132 | 133 | o |
| Latimer | City | Franklin | 535 | 507 | 509 | o |
| Laurel | City | Marshall | 266 | 239 | 240 | o |
| Laurens | City | Pocahontas | 1,476 | 1,258 | 1,236 | o |
| Lawler | City | Chickasaw | 461 | 439 | 440 | o |
| Lawton | City | Woodbury | 701 | 908 | 911 | o |
| Le Claire | City | Scott | 2,890 | 3,765 | 3,809 | o |
| Le Grand | City | 883 | 938 | 945 | o | |
| Le Mars | City | Plymouth | 9,252 | 9,826 | 9,791 | o |
| Le Roy | City | Decatur | 13 | 15 | 15 | o |
| Ledyard | City | Kossuth | 147 | 130 | 129 | o |
| Lehigh | City | Webster | 497 | 416 | 412 | o |
| Leighton | City | Mahaska | 157 | 162 | 163 | o |
| Leland | City | Winnebago | 256 | 289 | 287 | o |
| Lenox | City | 1,401 | 1,407 | 1,405 | o | |
| Leon | City | Decatur | 1,983 | 1,977 | 1,934 | o |
| Lester | City | Lyon | 251 | 294 | 297 | o |
| Letts | City | Louisa | 392 | 384 | 382 | o |
| Lewis | City | Cass | 438 | 433 | 428 | o |
| Libertyville | City | Jefferson | 325 | 315 | 315 | o |
| Lidderdale | City | Carroll | 186 | 180 | 180 | o |
| Lime Springs | City | Howard | 496 | 505 | 505 | o |
| Lincoln | City | Tama | 182 | 162 | 162 | o |
| Linden | City | Dallas | 226 | 199 | 210 | o |
| Lineville | City | Wayne | 273 | 217 | 214 | o |
| Linn Grove | City | Buena Vista | 211 | 154 | 155 | o |
| Lisbon | City | Linn | 1,898 | 2,152 | 2,179 | o |
| Liscomb | City | Marshall | 272 | 301 | 302 | o |
| Little Rock | City | Lyon | 489 | 459 | 462 | o |
| Little Sioux | City | Harrison | 217 | 170 | 168 | o |
| Livermore | City | Humboldt | 431 | 384 | 383 | o |
| Lockridge | City | Jefferson | 275 | 268 | 268 | o |
| Logan | City | Harrison | 1,546 | 1,534 | 1,524 | o |
| Lohrville | City | Calhoun | 426 | 368 | 366 | o |
| Lone Rock | City | Kossuth | 157 | 146 | 145 | o |
| Lone Tree | City | Johnson | 1,163 | 1,300 | 1,322 | o |
| Long Grove | City | Scott | 603 | 808 | 818 | o |
| Lorimor | City | Union | 427 | 360 | 360 | o |
| Lost Nation | City | Clinton | 497 | 446 | 445 | o |
| Lovilia | City | Monroe | 580 | 538 | 544 | o |
| Low Moor | City | Clinton | 240 | 288 | 288 | o |
| Lowden | City | Cedar | 797 | 789 | 786 | o |
| Lu Verne | City | 299 | 261 | 259 | o | |
| Luana | City | Clayton | 249 | 269 | 267 | o |
| Lucas | City | Lucas | 243 | 216 | 215 | o |
| Luther | City | Boone | 158 | 122 | 122 | o |
| Luxemburg | City | Dubuque | 246 | 240 | 243 | o |
| Luzerne | City | Benton | 105 | 96 | 96 | o |
| Lynnville | City | Jasper | 377 | 379 | 376 | o |
| Lytton | City | 305 | 315 | 311 | o | |
| Macedonia | City | Pottawattamie | 325 | 246 | 247 | o |
| Macksburg | City | Madison | 142 | 113 | 113 | o |
| Madrid | City | Boone | 2,425 | 2,543 | 2,539 | o |
| Magnolia | City | Harrison | 199 | 183 | 183 | o |
| Maharishi Vedic City | City | 71 | 259 | 258 | o | |
| Malcom | City | Poweshiek | 352 | 287 | 285 | o |
| Mallard | City | Palo Alto | 298 | 274 | 273 | o |
| Maloy | City | Ringgold | 28 | 29 | 29 | o |
| Malvern | City | Mills | 1,256 | 1,142 | 1,138 | o |
| Manchester | City | Delaware | 5,279 | 5,179 | 5,148 | o |
| Manilla | City | Crawford | 841 | 776 | 785 | o |
| Manly | City | Worth | 1,342 | 1,323 | 1,313 | o |
| Manning | City | Carroll | 1,493 | 1,500 | 1,503 | o |
| Manson | City | Calhoun | 1,893 | 1,690 | 1,682 | o |
| Mapleton | City | Monona | 1,322 | 1,224 | 1,224 | o |
| Maquoketa | City | Jackson | 6,135 | 6,141 | 6,124 | o |
| Marathon | City | Buena Vista | 302 | 237 | 239 | o |
| Marble Rock | City | Floyd | 326 | 307 | 303 | o |
| Marcus | City | Cherokee | 1,139 | 1,117 | 1,117 | o |
| Marengo | City | Iowa | 2,535 | 2,528 | 2,523 | o |
| Marion | City | Linn | 26,475 | 34,768 | 35,212 | o |
| Marne | City | Cass | 149 | 120 | 119 | o |
| Marquette | City | Clayton | 484 | 375 | 373 | o |
| Marshalltown | City | Marshall | 26,023 | 27,552 | 27,775 | o |
| Martelle | City | Jones | 280 | 255 | 255 | o |
| Martensdale | City | Warren | 467 | 465 | 471 | o |
| Martinsburg | City | Keokuk | 126 | 112 | 111 | o |
| Marysville | City | Marion | 54 | 66 | 66 | o |
| Mason City | City | Cerro Gordo | 29,279 | 28,079 | 27,944 | o |
| Masonville | City | Delaware | 104 | 127 | 126 | o |
| Massena | City | Cass | 414 | 355 | 351 | o |
| Matlock | City | Sioux | 83 | 87 | 87 | o |
| Maurice | City | Sioux | 254 | 275 | 277 | o |
| Maxwell | City | Story | 812 | 920 | 921 | o |
| Maynard | City | Fayette | 500 | 518 | 520 | o |
| Maysville | City | Scott | 163 | 176 | 177 | o |
| McCallsburg | City | Story | 318 | 333 | 333 | o |
| McCausland | City | Scott | 299 | 291 | 295 | o |
| McClelland | City | Pottawattamie | 129 | 151 | 152 | o |
| McGregor | City | Clayton | 871 | 871 | 865 | o |
| McIntire | City | Mitchell | 173 | 122 | 122 | o |
| Mechanicsville | City | Cedar | 1,173 | 1,146 | 1,141 | o |
| Mediapolis | City | Des Moines | 1,644 | 1,560 | 1,553 | o |
| Melbourne | City | Marshall | 794 | 830 | 838 | o |
| Melcher-Dallas | City | Marion | 1,298 | 1,288 | 1,289 | o |
| Melrose | City | Monroe | 130 | 112 | 114 | o |
| Melvin | City | Osceola | 243 | 214 | 211 | o |
| Menlo | City | Guthrie | 365 | 353 | 352 | o |
| Meriden | City | Cherokee | 184 | 159 | 160 | o |
| Merrill | City | Plymouth | 754 | 755 | 752 | o |
| Meservey | City | Cerro Gordo | 252 | 256 | 254 | o |
| Middletown | City | Des Moines | 535 | 318 | 318 | o |
| Miles | City | Jackson | 462 | 445 | 444 | o |
| Milford | City | Dickinson | 2,476 | 2,898 | 2,938 | o |
| Millersburg | City | Iowa | 184 | 159 | 157 | o |
| Millerton | City | Wayne | 48 | 45 | 45 | o |
| Millville | City | Clayton | 23 | 30 | 30 | o |
| Milo | City | Warren | 839 | 775 | 784 | o |
| Milton | City | Van Buren | 550 | 443 | 440 | o |
| Minburn | City | Dallas | 391 | 365 | 384 | o |
| Minden | City | Pottawattamie | 564 | 599 | 601 | o |
| Mingo | City | Jasper | 269 | 302 | 300 | o |
| Missouri Valley | City | Harrison | 2,992 | 2,838 | 2,820 | o |
| Mitchell | City | Mitchell | 155 | 138 | 137 | o |
| Mitchellville | City | 2,037 | 2,254 | 2,280 | o | |
| Modale | City | Harrison | 303 | 283 | 280 | o |
| Mondamin | City | Harrison | 423 | 402 | 399 | o |
| Monmouth | City | Jackson | 180 | 153 | 153 | o |
| Monona | City | Clayton | 1,550 | 1,549 | 1,540 | o |
| Monroe | City | Jasper | 1,808 | 1,830 | 1,814 | o |
| Montezuma | City | Poweshiek | 1,457 | 1,462 | 1,452 | o |
| Monticello | City | Jones | 3,670 | 3,796 | 3,791 | o |
| Montour | City | Tama | 285 | 249 | 248 | o |
| Montrose | City | Lee | 957 | 898 | 891 | o |
| Moorhead | City | Monona | 232 | 226 | 226 | o |
| Moorland | City | Webster | 201 | 169 | 168 | o |
| Moravia | City | Appanoose | 693 | 665 | 659 | o |
| Morley | City | Jones | 88 | 115 | 114 | o |
| Morning Sun | City | Louisa | 872 | 836 | 836 | o |
| Morrison | City | Grundy | 98 | 94 | 94 | o |
| Moulton | City | Appanoose | 658 | 605 | 601 | o |
| Mount Auburn | City | Benton | 160 | 150 | 150 | o |
| Mount Ayr | City | Ringgold | 1,893 | 1,691 | 1,687 | o |
| Mount Pleasant | City | Henry | 8,759 | 8,668 | 8,722 | o |
| Mount Sterling | City | Van Buren | 40 | 36 | 36 | o |
| Mount Union | City | Henry | 132 | 107 | 108 | o |
| Mount Vernon | City | Linn | 3,810 | 4,506 | 4,549 | o |
| Moville | City | Woodbury | 1,583 | 1,618 | 1,622 | o |
| Murray | City | Clarke | 766 | 756 | 762 | o |
| Muscatine | City | Muscatine | 22,714 | 22,886 | 22,924 | o |
| Mystic | City | Appanoose | 588 | 425 | 422 | o |
| Nashua | City | Chickasaw | 1,624 | 1,663 | 1,664 | o |
| Nemaha | City | Sac | 99 | 85 | 84 | o |
| Neola | City | Pottawattamie | 852 | 845 | 848 | o |
| Nevada | City | Story | 6,667 | 6,798 | 6,807 | o |
| New Albin | City | Allamakee | 527 | 522 | 519 | o |
| New Hampton | City | Chickasaw | 3,704 | 3,571 | 3,573 | o |
| New Hartford | City | Butler | 659 | 516 | 520 | o |
| New Liberty | City | Scott | 121 | 137 | 138 | o |
| New London | City | Henry | 1,934 | 1,897 | 1,910 | o |
| New Market | City | Taylor | 456 | 415 | 414 | o |
| New Providence | City | Hardin | 227 | 228 | 226 | o |
| New Sharon | City | Mahaska | 1,304 | 1,293 | 1,301 | o |
| New Vienna | City | Dubuque | 394 | 407 | 413 | o |
| New Virginia | City | Warren | 469 | 489 | 495 | o |
| Newell | City | Buena Vista | 887 | 876 | 881 | o |
| Newhall | City | Benton | 886 | 875 | 875 | o |
| Newton | City | Jasper | 15,612 | 15,254 | 15,130 | o |
| Nichols | City | Muscatine | 377 | 374 | 375 | o |
| Nodaway | City | Adams | 132 | 114 | 114 | o |
| Nora Springs | City | 1,532 | 1,431 | 1,411 | o | |
| North Buena Vista | City | Clayton | 124 | 121 | 120 | o |
| North English | City | 991 | 1,041 | 1,038 | o | |
| North Liberty | City | Johnson | 5,371 | 13,374 | 13,608 | o |
| North Washington | City | Chickasaw | 118 | 117 | 117 | o |
| Northboro | City | Page | 60 | 58 | 59 | o |
| Northwood | City | Worth | 2,050 | 1,989 | 1,974 | o |
| Norwalk | City | Warren | 7,055 | 8,945 | 9,044 | o |
| Norway | City | Benton | 601 | 545 | 545 | o |
| Numa | City | Appanoose | 111 | 92 | 92 | o |
| Oakland | City | Pottawattamie | 1,487 | 1,527 | 1,533 | o |
| Oakland Acres | City | Jasper | 165 | 156 | 155 | o |
| Oakville | City | Louisa | 439 | 173 | 173 | o |
| Ocheyedan | City | Osceola | 536 | 490 | 482 | o |
| Odebolt | City | Sac | 1,153 | 1,013 | 1,004 | o |
| Oelwein | City | Fayette | 6,692 | 6,415 | 6,444 | o |
| Ogden | City | Boone | 2,023 | 2,044 | 2,041 | o |
| Okoboji | City | Dickinson | 849 | 807 | 818 | o |
| Olds | City | Henry | 249 | 229 | 230 | o |
| Olin | City | Jones | 716 | 698 | 698 | o |
| Ollie | City | Keokuk | 224 | 215 | 211 | o |
| Onawa | City | Monona | 3,105 | 2,998 | 2,997 | o |
| Onslow | City | Jones | 223 | 197 | 197 | o |
| Orange City | City | Sioux | 5,630 | 6,004 | 6,035 | o |
| Orchard | City | Mitchell | 88 | 71 | 71 | o |
| Orient | City | Adair | 402 | 408 | 400 | o |
| Orleans | City | Dickinson | 623 | 608 | 617 | o |
| Osage | City | Mitchell | 3,463 | 3,619 | 3,622 | o |
| Osceola | City | Clarke | 4,744 | 4,929 | 4,966 | o |
| Oskaloosa | City | Mahaska | 11,073 | 11,463 | 11,538 | o |
| Ossian | City | Winneshiek | 853 | 845 | 844 | o |
| Osterdock | City | Clayton | 50 | 59 | 59 | o |
| Otho | City | Webster | 571 | 542 | 536 | o |
| Oto | City | Woodbury | 145 | 108 | 109 | o |
| Ottosen | City | Humboldt | 61 | 55 | 55 | o |
| Ottumwa | City | Wapello | 24,996 | 25,023 | 24,881 | o |
| Owasa | City | Hardin | 38 | 43 | 43 | o |
| Oxford | City | Johnson | 711 | 807 | 822 | o |
| Oxford Junction | City | Jones | 573 | 496 | 495 | o |
| Oyens | City | Plymouth | 132 | 103 | 103 | o |
| Pacific Junction | City | Mills | 507 | 471 | 469 | o |
| Packwood | City | Jefferson | 223 | 204 | 204 | o |
| Palmer | City | Pocahontas | 214 | 165 | 162 | o |
| Palo | City | Linn | 616 | 1,026 | 1,040 | o |
| Panama | City | Shelby | 212 | 221 | 218 | o |
| Panora | City | Guthrie | 1,175 | 1,124 | 1,119 | o |
| Panorama Park | City | Scott | 131 | 129 | 130 | o |
| Parkersburg | City | Butler | 1,889 | 1,870 | 1,879 | o |
| Parnell | City | Iowa | 220 | 193 | 193 | o |
| Paton | City | Greene | 265 | 236 | 234 | o |
| Patterson | City | Madison | 126 | 130 | 131 | o |
| Paullina | City | O'Brien | 1,126 | 1,056 | 1,042 | o |
| Pella | City | Marion | 9,933 | 10,352 | 10,360 | o |
| Peosta | City | Dubuque | 654 | 1,377 | 1,393 | o |
| Perry | City | Dallas | 7,635 | 7,702 | 8,083 | o |
| Persia | City | Harrison | 363 | 319 | 316 | o |
| Peterson | City | Clay | 372 | 334 | 333 | o |
| Pierson | City | Woodbury | 371 | 366 | 368 | o |
| Pilot Mound | City | Boone | 214 | 173 | 172 | o |
| Pioneer | City | Humboldt | 21 | 23 | 23 | o |
| Pisgah | City | Harrison | 316 | 251 | 249 | o |
| Plainfield | City | Bremer | 438 | 436 | 435 | o |
| Plano | City | Appanoose | 58 | 70 | 70 | o |
| Pleasant Hill | City | Polk | 5,194 | 8,785 | 8,925 | o |
| Pleasant Plain | City | Jefferson | 131 | 93 | 93 | o |
| Pleasanton | City | Decatur | 37 | 49 | 48 | o |
| Pleasantville | City | Marion | 1,568 | 1,694 | 1,695 | o |
| Plover | City | Pocahontas | 95 | 77 | 76 | o |
| Plymouth | City | Cerro Gordo | 429 | 382 | 381 | o |
| Pocahontas | City | Pocahontas | 1,970 | 1,789 | 1,757 | o |
| Polk City | City | Polk | 2,349 | 3,418 | 3,472 | o |
| Pomeroy | City | Calhoun | 710 | 662 | 660 | o |
| Popejoy | City | Franklin | 78 | 79 | 79 | o |
| Portsmouth | City | Shelby | 225 | 195 | 193 | o |
| Postville | City | 2,273 | 2,227 | 2,218 | o | |
| Prairie City | City | Jasper | 1,365 | 1,680 | 1,665 | o |
| Prairieburg | City | Linn | 172 | 178 | 181 | o |
| Prescott | City | Adams | 266 | 257 | 254 | o |
| Preston | City | Jackson | 949 | 1,012 | 1,009 | o |
| Primghar | City | O'Brien | 891 | 909 | 898 | o |
| Princeton | City | Scott | 946 | 886 | 895 | o |
| Promise City | City | Wayne | 105 | 111 | 108 | o |
| Protivin | City | 317 | 283 | 282 | o | |
| Pulaski | City | Davis | 252 | 260 | 262 | o |
| Quasqueton | City | Buchanan | 574 | 554 | 553 | o |
| Quimby | City | Cherokee | 368 | 319 | 318 | o |
| Radcliffe | City | Hardin | 607 | 545 | 542 | o |
| Rake | City | Winnebago | 228 | 225 | 224 | o |
| Ralston | City | 98 | 79 | 79 | o | |
| Randalia | City | Fayette | 84 | 68 | 69 | o |
| Randall | City | Hamilton | 143 | 173 | 172 | o |
| Randolph | City | Fremont | 209 | 168 | 167 | o |
| Rathbun | City | Appanoose | 88 | 89 | 89 | o |
| Raymond | City | Black Hawk | 537 | 788 | 790 | o |
| Readlyn | City | Bremer | 786 | 808 | 808 | o |
| Reasnor | City | Jasper | 194 | 152 | 151 | o |
| Red Oak | City | Montgomery | 6,209 | 5,742 | 5,688 | o |
| Redding | City | Ringgold | 78 | 82 | 81 | o |
| Redfield | City | Dallas | 833 | 835 | 877 | o |
| Reinbeck | City | Grundy | 1,751 | 1,664 | 1,665 | o |
| Rembrandt | City | Buena Vista | 228 | 203 | 205 | o |
| Remsen | City | Plymouth | 1,762 | 1,663 | 1,659 | o |
| Renwick | City | Humboldt | 306 | 242 | 241 | o |
| Rhodes | City | Marshall | 294 | 305 | 307 | o |
| Riceville | City | 840 | 785 | 785 | o | |
| Richland | City | Keokuk | 584 | 584 | 577 | o |
| Rickardsville | City | Dubuque | 193 | 182 | 185 | o |
| Ricketts | City | Crawford | 144 | 145 | 147 | o |
| Ridgeway | City | Winneshiek | 293 | 315 | 314 | o |
| Rinard | City | Calhoun | 72 | 52 | 52 | o |
| Ringsted | City | Emmet | 437 | 422 | 413 | o |
| Rippey | City | Greene | 319 | 292 | 289 | o |
| Riverdale | City | Scott | 651 | 405 | 409 | o |
| Riverside | City | Washington | 947 | 993 | 999 | o |
| Riverton | City | Fremont | 304 | 304 | 302 | o |
| Robins | City | Linn | 1,853 | 3,142 | 3,182 | o |
| Rock Falls | City | Cerro Gordo | 170 | 155 | 154 | o |
| Rock Rapids | City | Lyon | 2,573 | 2,549 | 2,569 | o |
| Rock Valley | City | Sioux | 2,905 | 3,354 | 3,374 | o |
| Rockford | City | Floyd | 907 | 860 | 848 | o |
| Rockwell | City | Cerro Gordo | 989 | 1,039 | 1,033 | o |
| Rockwell City | City | Calhoun | ... | 2,216 | 2,208 | o |
| Rodman | City | Palo Alto | 56 | 45 | 45 | o |
| Rodney | City | Monona | 74 | 60 | 60 | o |
| Roland | City | Story | 1,324 | 1,284 | 1,285 | o |
| Rolfe | City | Pocahontas | 675 | 584 | 575 | o |
| Rome | City | Henry | 116 | 117 | 118 | o |
| Rose Hill | City | Mahaska | 205 | 168 | 169 | o |
| Rossie | City | Clay | 58 | 70 | 70 | o |
| Rowan | City | Wright | 218 | 158 | 157 | o |
| Rowley | City | Buchanan | 290 | 264 | 262 | o |
| Royal | City | Clay | 482 | 446 | 444 | o |
| Rudd | City | Floyd | 431 | 369 | 364 | o |
| Runnells | City | Polk | 342 | 507 | 515 | o |
| Russell | City | Lucas | 559 | 554 | 550 | o |
| Ruthven | City | Palo Alto | 767 | 737 | 736 | o |
| Rutland | City | Humboldt | 145 | 126 | 126 | o |
| Ryan | City | Delaware | 405 | 361 | 358 | o |
| Sabula | City | Jackson | 670 | 576 | 574 | o |
| Sac City | City | Sac | 2,368 | 2,220 | 2,197 | o |
| Sageville | City | Dubuque | 224 | 122 | 125 | o |
| Salem | City | Henry | 464 | 383 | 386 | o |
| Salix | City | Woodbury | 397 | 363 | 365 | o |
| Sanborn | City | O'Brien | 1,357 | 1,404 | 1,386 | o |
| Sandyville | City | Warren | 61 | 51 | 52 | o |
| Scarville | City | Winnebago | 97 | 72 | 72 | o |
| Schaller | City | Sac | 779 | 772 | 763 | o |
| Schleswig | City | Crawford | 833 | 882 | 891 | o |
| Scranton | City | Greene | 604 | 557 | 554 | o |
| Searsboro | City | Poweshiek | 159 | 148 | 147 | o |
| Sergeant Bluff | City | Woodbury | 3,326 | 4,227 | 4,240 | o |
| Seymour | City | Wayne | 810 | 701 | 691 | o |
| Shambaugh | City | Page | 188 | 191 | 191 | o |
| Shannon City | City | 77 | 71 | 71 | o | |
| Sharpsburg | City | Taylor | 98 | 89 | 89 | o |
| Sheffield | City | Franklin | 930 | 1,172 | 1,178 | o |
| Shelby | City | 696 | 641 | 635 | o | |
| Sheldahl | City | 336 | 319 | 322 | o | |
| Sheldon | City | 5,023 | 5,188 | 5,124 | o | |
| Shell Rock | City | Butler | 1,298 | 1,296 | 1,303 | o |
| Shellsburg | City | Benton | 938 | 983 | 983 | o |
| Shenandoah | City | 5,546 | 5,150 | 5,169 | o | |
| Sherrill | City | Dubuque | 197 | 177 | 180 | o |
| Shueyville | City | Johnson | 338 | 577 | 586 | o |
| Sibley | City | Osceola | 2,796 | 2,798 | 2,753 | o |
| Sidney | City | Fremont | 1,300 | 1,138 | 1,127 | o |
| Sigourney | City | Keokuk | 2,209 | 2,059 | 2,033 | o |
| Silver City | City | Mills | 259 | 245 | 243 | o |
| Sioux Center | City | Sioux | 6,057 | 7,048 | 7,087 | o |
| Sioux City | City | 85,060 | 82,695 | 82,967 | o | |
| Sioux Rapids | City | Buena Vista | 720 | 775 | 781 | o |
| Slater | City | Story | 1,306 | 1,489 | 1,491 | o |
| Sloan | City | Woodbury | 1,033 | 973 | 976 | o |
| Smithland | City | Woodbury | 221 | 224 | 225 | o |
| Soldier | City | Monona | 207 | 174 | 174 | o |
| Solon | City | Johnson | 1,206 | 2,037 | 2,071 | o |
| Somers | City | Calhoun | 165 | 113 | 113 | o |
| South English | City | Keokuk | 213 | 212 | 210 | o |
| Spencer | City | Clay | 11,330 | 11,233 | 11,181 | o |
| Spillville | City | Winneshiek | 386 | 367 | 366 | o |
| Spirit Lake | City | Dickinson | 4,273 | 4,840 | 4,907 | o |
| Spragueville | City | Jackson | 89 | 81 | 81 | o |
| Spring Hill | City | Warren | 92 | 63 | 65 | o |
| Springbrook | City | Jackson | 181 | 144 | 144 | o |
| Springville | City | Linn | 1,096 | 1,074 | 1,089 | o |
| St. Ansgar | City | Mitchell | 1,032 | 1,107 | 1,109 | o |
| St. Anthony | City | Marshall | 109 | 102 | 103 | o |
| St. Charles | City | Madison | 621 | 653 | 658 | o |
| St. Donatus | City | Jackson | 140 | 135 | 135 | o |
| St. Lucas | City | Fayette | 178 | 143 | 144 | o |
| St. Marys | City | Warren | 134 | 127 | 129 | o |
| St. Olaf | City | Clayton | 136 | 108 | 107 | o |
| St. Paul | City | Lee | 118 | 129 | 129 | o |
| Stacyville | City | Mitchell | 471 | 490 | 491 | o |
| Stanhope | City | Hamilton | 488 | 422 | 418 | o |
| Stanley | City | 128 | 125 | 125 | o | |
| Stanton | City | Montgomery | 714 | 689 | 682 | o |
| Stanwood | City | Cedar | 680 | 684 | 679 | o |
| State Center | City | Marshall | 1,349 | 1,468 | 1,481 | o |
| Steamboat Rock | City | Hardin | 336 | 310 | 308 | o |
| Stockport | City | Van Buren | 284 | 296 | 294 | o |
| Stockton | City | Muscatine | 186 | 197 | 197 | o |
| Storm Lake | City | Buena Vista | 10,075 | 10,600 | 10,674 | o |
| Story City | City | Story | 3,236 | 3,431 | 3,436 | o |
| Stout | City | Grundy | 217 | 224 | 225 | o |
| Stratford | City | 746 | 743 | 738 | o | |
| Strawberry Point | City | Clayton | 1,386 | 1,279 | 1,270 | o |
| Struble | City | Plymouth | 85 | 78 | 78 | o |
| Stuart | City | 1,715 | 1,648 | 1,629 | o | |
| Sully | City | Jasper | 908 | 821 | 815 | o |
| Sumner | City | 2,106 | 2,028 | 2,029 | o | |
| Superior | City | Dickinson | 142 | 130 | 132 | o |
| Sutherland | City | O'Brien | 707 | 649 | 641 | o |
| Swaledale | City | Cerro Gordo | 172 | 165 | 164 | o |
| Swan | City | Marion | 121 | 72 | 72 | o |
| Swea City | City | Kossuth | 642 | 536 | 531 | o |
| Swisher | City | Johnson | 825 | 879 | 895 | o |
| Tabor | City | 993 | 1,040 | 1,030 | o | |
| Tama | City | Tama | 2,731 | 2,877 | 2,864 | o |
| Templeton | City | Carroll | 334 | 362 | 362 | o |
| Tennant | City | Shelby | 73 | 68 | 67 | o |
| Terril | City | Dickinson | 404 | 367 | 372 | o |
| Thayer | City | Union | 66 | 59 | 59 | o |
| Thompson | City | Winnebago | 596 | 502 | 498 | o |
| Thor | City | Humboldt | 174 | 186 | 187 | o |
| Thornburg | City | Keokuk | 84 | 67 | 66 | o |
| Thornton | City | Cerro Gordo | 422 | 422 | 421 | o |
| Thurman | City | Fremont | 236 | 229 | 227 | o |
| Tiffin | City | Johnson | 1,062 | 1,947 | 1,981 | o |
| Tingley | City | Ringgold | 171 | 184 | 182 | o |
| Tipton | City | Cedar | 3,154 | 3,221 | 3,203 | o |
| Titonka | City | Kossuth | 584 | 476 | 472 | o |
| Toledo | City | Tama | 2,539 | 2,341 | 2,333 | o |
| Toronto | City | Clinton | 134 | 124 | 124 | o |
| Traer | City | Tama | 1,594 | 1,703 | 1,696 | o |
| Treynor | City | Pottawattamie | 941 | 919 | 922 | o |
| Tripoli | City | Bremer | 1,310 | 1,313 | 1,314 | o |
| Truesdale | City | Buena Vista | 91 | 81 | 82 | o |
| Truro | City | Madison | 427 | 485 | 490 | o |
| Turin | City | Monona | 75 | 68 | 68 | o |
| Udell | City | Appanoose | 58 | 47 | 47 | o |
| Underwood | City | Pottawattamie | 692 | 917 | 920 | o |
| Union | City | Hardin | 427 | 397 | 394 | o |
| Unionville | City | Appanoose | 127 | 102 | 102 | o |
| University Heights | City | Johnson | 987 | 1,051 | 1,070 | o |
| University Park | City | Mahaska | 536 | 487 | 491 | o |
| Urbana | City | Benton | 1,027 | 1,458 | 1,458 | o |
| Urbandale | City | 29,262 | 39,463 | 40,311 | o | |
| Ute | City | Monona | 378 | 374 | 373 | o |
| Vail | City | Crawford | 452 | 436 | 440 | o |
| Valeria | City | Jasper | 62 | 57 | 56 | o |
| Van Horne | City | Benton | 716 | 682 | 682 | o |
| Van Meter | City | Dallas | 942 | 1,016 | 1,067 | o |
| Van Wert | City | Decatur | 231 | 230 | 226 | o |
| Varina | City | Pocahontas | 90 | 71 | 70 | o |
| Ventura | City | Cerro Gordo | 671 | 717 | 713 | o |
| Victor | City | 952 | 893 | 891 | o | |
| Villisca | City | Montgomery | 1,344 | 1,252 | 1,240 | o |
| Vincent | City | Webster | 158 | 174 | 173 | o |
| Vining | City | Tama | 70 | 50 | 50 | o |
| Vinton | City | Benton | 5,109 | 5,257 | 5,260 | o |
| Volga | City | Clayton | 247 | 208 | 206 | o |
| Wadena | City | Fayette | 243 | 262 | 262 | o |
| Wahpeton | City | Dickinson | 462 | 341 | 346 | o |
| Walcott | City | 1,528 | 1,629 | 1,648 | o | |
| Walford | City | 1,215 | 1,463 | 1,467 | o | |
| Walker | City | Linn | 753 | 791 | 801 | o |
| Wall Lake | City | Sac | 848 | 819 | 811 | o |
| Wallingford | City | Emmet | 210 | 197 | 192 | o |
| Walnut | City | Pottawattamie | 877 | 785 | 788 | o |
| Wapello | City | Louisa | 2,127 | 2,067 | 2,063 | o |
| Washington | City | Washington | 7,047 | 7,266 | 7,315 | o |
| Washta | City | Cherokee | 282 | 248 | 247 | o |
| Waterloo | City | Black Hawk | 68,756 | 68,406 | 68,653 | o |
| Waterville | City | Allamakee | 141 | 144 | 144 | o |
| Waucoma | City | Fayette | 298 | 257 | 257 | o |
| Waukee | City | Dallas | 5,451 | 13,790 | 14,484 | o |
| Waukon | City | Allamakee | 4,135 | 3,897 | 3,882 | o |
| Waverly | City | Bremer | 8,968 | 9,874 | 9,876 | o |
| Wayland | City | Henry | 948 | 966 | 973 | o |
| Webb | City | Clay | 165 | 141 | 140 | o |
| Webster | City | Keokuk | 111 | 88 | 87 | o |
| Webster City | City | Hamilton | 8,180 | 8,070 | 8,000 | o |
| Weldon | City | Decatur | 145 | 125 | 123 | o |
| Wellman | City | Washington | 1,425 | 1,408 | 1,418 | o |
| Wellsburg | City | Grundy | 722 | 707 | 706 | o |
| Welton | City | Clinton | 163 | 165 | 165 | o |
| Wesley | City | Kossuth | 467 | 390 | 387 | o |
| West Bend | City | 834 | 785 | 785 | o | |
| West Branch | City | 2,191 | 2,322 | 2,310 | o | |
| West Burlington | City | Des Moines | 3,161 | 2,968 | 2,956 | o |
| West Chester | City | Washington | 159 | 146 | 148 | o |
| West Des Moines | City | 47,189 | 56,609 | 57,909 | o | |
| West Liberty | City | Muscatine | 3,329 | 3,736 | 3,742 | o |
| West Okoboji | City | Dickinson | 432 | 289 | 293 | o |
| West Point | City | Lee | 980 | 966 | 959 | o |
| West Union | City | Fayette | 2,549 | 2,486 | 2,497 | o |
| Westfield | City | Plymouth | 189 | 132 | 131 | o |
| Westgate | City | Fayette | 234 | 211 | 213 | o |
| Westphalia | City | Shelby | 160 | 127 | 125 | o |
| Westside | City | Crawford | 327 | 299 | 301 | o |
| Westwood | City | Henry | 127 | 112 | 113 | o |
| What Cheer | City | Keokuk | 678 | 646 | 637 | o |
| Wheatland | City | Clinton | 772 | 764 | 763 | o |
| Whiting | City | Monona | 801 | 762 | 761 | o |
| Whittemore | City | Kossuth | 530 | 504 | 499 | o |
| Whitten | City | Hardin | 160 | 149 | 149 | o |
| Willey | City | Carroll | 103 | 88 | 88 | o |
| Williams | City | Hamilton | 427 | 344 | 341 | o |
| Williamsburg | City | Iowa | 2,634 | 3,068 | 3,062 | o |
| Williamson | City | Lucas | 163 | 152 | 152 | o |
| Wilton | City | 2,824 | 2,802 | 2,807 | o | |
| Windsor Heights | City | Polk | 4,886 | 4,860 | 4,938 | o |
| Winfield | City | Henry | 1,135 | 1,134 | 1,143 | o |
| Winterset | City | Madison | 4,770 | 5,190 | 5,222 | o |
| Winthrop | City | Buchanan | 774 | 850 | 849 | o |
| Wiota | City | Cass | 149 | 116 | 115 | o |
| Woden | City | Hancock | 243 | 229 | 228 | o |
| Woodbine | City | Harrison | 1,571 | 1,459 | 1,450 | o |
| Woodburn | City | Clarke | 244 | 202 | 204 | o |
| Woodward | City | Dallas | 1,202 | 1,024 | 1,076 | o |
| Woolstock | City | Wright | 204 | 168 | 167 | o |
| Worthington | City | Dubuque | 381 | 401 | 405 | o |
| Wyoming | City | Jones | 626 | 515 | 514 | o |
| Yale | City | Guthrie | 287 | 246 | 245 | o |
| Yetter | City | Calhoun | 36 | 34 | 34 | o |
| Yorktown | City | Page | 82 | 85 | 86 | o |
| Zearing | City | Story | 617 | 554 | 555 | o |
| Zwingle | City | 100 | 91 | 91 | o |
Source: US Census Bureau (web).
2012-07-02WWW.CITYPOPULATION.DE