The graph below ranks each Iowa County by total residents according to the 2006 census estimates.
Iowa total population by county
County | Total Population |
Polk | 408,888 |
Linn | 201,853 |
Scott | 162,621 |
Black Hawk | 126,106 |
Johnson | 118,038 |
Woodbury | 102,972 |
Dubuque | 92,384 |
Pottawattamie | 90,218 |
Story | 80,145 |
Dallas | 54,525 |
Clinton | 49,782 |
Cerro Gordo | 44,384 |
Warren | 43,926 |
Muscatine | 42,883 |
Des Moines | 40,885 |
Marshall | 39,555 |
Webster | 38,960 |
Jasper | 37,409 |
Lee | 36,338 |
Wapello | 36,010 |
Marion | 32,987 |
Sioux | 32,525 |
Benton | 26,962 |
Boone | 26,584 |
Plymouth | 24,906 |
Bremer | 23,837 |
Mahaska | 22,298 |
Washington | 21,529 |
Winneshiek | 21,263 |
Buchanan | 21,045 |
Fayette | 20,996 |
Carroll | 20,963 |
Jones | 20,505 |
Henry | 20,405 |
Jackson | 20,290 |
Buena Vista | 20,091 |
Poweshiek | 19,007 |
Cedar | 18,326 |
Clayton | 18,251 |
Tama | 17,890 |
Delaware | 17,848 |
Hardin | 17,791 |
Crawford | 16,948 |
Dickinson | 16,924 |
Clay | 16,801 |
Floyd | 16,441 |
Page | 16,263 |
Iowa | 16,140 |
Hamilton | 16,087 |
Kossuth | 16,011 |
Jefferson | 15,945 |
Harrison | 15,745 |
Mills | 15,595 |
Madison | 15,547 |
Butler | 15,073 |
Allamakee | 14,796 |
O'Brien | 14,409 |
Cass | 14,124 |
Appanoose | 13,422 |
Wright | 13,419 |
Shelby | 12,489 |
Chickasaw | 12,412 |
Grundy | 12,320 |
Cherokee | 12,094 |
Union | 12,093 |
Louisa | 11,858 |
Hancock | 11,680 |
Lyon | 11,636 |
Montgomery | 11,365 |
Guthrie | 11,344 |
Winnebago | 11,216 |
Keokuk | 11,081 |
Mitchell | 10,856 |
Franklin | 10,708 |
Sac | 10,682 |
Emmet | 10,479 |
Calhoun | 10,437 |
Humboldt | 9,975 |
Greene | 9,809 |
Howard | 9,677 |
Palo Alto | 9,549 |
Lucas | 9,543 |
Monona | 9,343 |
Clarke | 9,156 |
Decatur | 8,656 |
Davis | 8,602 |
Van Buren | 7,836 |
Pocahontas | 7,794 |
Fremont | 7,737 |
Monroe | 7,725 |
Adair | 7,714 |
Worth | 7,698 |
Ida | 7,180 |
Osceola | 6,629 |
Wayne | 6,542 |
Taylor | 6,540 |
Audubon | 6,278 |
Ringgold | 5,289 |
Adams | 4,192 |