Facts
- Population
- 3,241,488 (2024)
- Change since 2020
- 1.6 %
- Natural change, 2023
- 3,496
- Unemployment rate
- 3.2 % (2024)
- Population base, April 2020
- 3,190,546 (2020)
- Births
- 36,475 (2023)
- Births per 1,000 residents, 2023
- 11.3
- Deaths
- 32,979 (2023)
- Deaths per 1,000 residents, 2023
- 10.2
- International migration
- 16,114 (2023)
- Domestic migration
- -3,674 (2023)
- Net migration
- 12,440 (2023)
- Net migration per 1,000, 2023
- 3.8
- Postal code
- IA
- FIPS code
- 19
Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS
Population estimates, 2020–2024
| Period | Value |
|---|---|
| 2024 | 3,241,488 |
| 2023 | 3,218,414 |
| 2022 | 3,202,820 |
| 2021 | 3,198,613 |
| 2020 | 3,191,141 |
Unemployment rate, annual average
| Period | Value |
|---|---|
| 2024 | 3.2 % |
| 2023 | 3.0 % |
| 2022 | 2.9 % |
| 2021 | 3.9 % |
| 2020 | 5.2 % |
Counties · 99
| # | County | Population | Change since 2020 | Unemployment rate |
|---|---|---|---|---|
| 1 | Polk County | 516,185 | 4.8 % | 3.7 % |
| 2 | Linn County | 231,762 | 0.6 % | 3.8 % |
| 3 | Scott County | 175,601 | 0.5 % | 4.3 % |
| 4 | Johnson County | 160,080 | 4.7 % | 2.7 % |
| 5 | Black Hawk County | 132,348 | 0.9 % | 4.1 % |
| 6 | Dallas County | 115,343 | 15.6 % | 3.1 % |
| 7 | Woodbury County | 107,257 | 1.2 % | 3.5 % |
| 8 | Story County | 102,498 | 4.0 % | 2.9 % |
| 9 | Dubuque County | 99,242 | -0.0 % | 3.5 % |
| 10 | Pottawattamie County | 93,529 | -0.1 % | 3.8 % |
| 11 | Warren County | 56,343 | 7.5 % | 3.2 % |
| 12 | Clinton County | 46,015 | -1.0 % | 4.5 % |
| 13 | Cerro Gordo County | 42,493 | -1.5 % | 3.4 % |
| 14 | Muscatine County | 42,132 | -2.6 % | 3.8 % |
| 15 | Marshall County | 40,392 | 0.7 % | 6.4 % |
| 16 | Des Moines County | 38,411 | -1.4 % | 4.2 % |
| 17 | Jasper County | 38,107 | 0.8 % | 3.6 % |
| 18 | Webster County | 36,909 | -0.2 % | 3.6 % |
| 19 | Sioux County | 36,554 | 1.9 % | 2.3 % |
| 20 | Wapello County | 35,681 | 0.7 % | 4.3 % |
| 21 | Marion County | 34,048 | 1.9 % | 2.8 % |
| 22 | Lee County | 32,376 | -3.5 % | 4.0 % |
| 23 | Boone County | 26,729 | 0.1 % | 3.1 % |
| 24 | Plymouth County | 25,825 | 0.5 % | 2.6 % |
| 25 | Benton County | 25,799 | 0.8 % | 3.3 % |
| 26 | Bremer County | 25,328 | 1.4 % | 3.3 % |
| 27 | Washington County | 22,631 | 0.3 % | 2.7 % |
| 28 | Mahaska County | 22,034 | -0.7 % | 2.8 % |
| 29 | Jones County | 21,116 | 2.3 % | 4.2 % |
| 30 | Buena Vista County | 20,816 | -0.0 % | 3.0 % |
| 31 | Buchanan County | 20,733 | 0.8 % | 3.5 % |
| 32 | Carroll County | 20,407 | -1.7 % | 2.4 % |
| 33 | Winneshiek County | 19,723 | -1.7 % | 3.2 % |
| 34 | Jackson County | 19,390 | -0.5 % | 4.1 % |
| 35 | Henry County | 19,361 | -5.5 % | 3.5 % |
| 36 | Fayette County | 19,152 | -1.9 % | 3.8 % |
| 37 | Poweshiek County | 18,454 | -1.1 % | 3.3 % |
| 38 | Cedar County | 18,231 | -1.4 % | 3.3 % |
| 39 | Dickinson County | 18,158 | 2.5 % | 3.4 % |
| 40 | Delaware County | 17,609 | 0.7 % | 3.1 % |
| 41 | Madison County | 17,161 | 3.7 % | 3.3 % |
| 42 | Clayton County | 16,931 | -0.7 % | 4.3 % |
| 43 | Tama County | 16,738 | -2.1 % | 4.8 % |
| 44 | Clay County | 16,474 | 0.6 % | 3.2 % |
| 45 | Hardin County | 16,464 | -2.4 % | 3.1 % |
| 46 | Iowa County | 16,423 | -1.4 % | 3.8 % |
| 47 | Crawford County | 16,378 | -0.9 % | 4.6 % |
| 48 | Jefferson County | 15,781 | 0.7 % | 3.6 % |
| 49 | Page County | 15,038 | -1.2 % | 2.9 % |
| 50 | Floyd County | 15,008 | -4.0 % | 3.9 % |
| 51 | Hamilton County | 14,856 | -1.2 % | 2.8 % |
| 52 | Mills County | 14,717 | 1.5 % | 3.6 % |
| 53 | Harrison County | 14,626 | 0.3 % | 2.8 % |
| 54 | Kossuth County | 14,408 | -2.8 % | 2.9 % |
| 55 | O'Brien County | 14,260 | 0.6 % | 2.7 % |
| 56 | Allamakee County | 14,184 | 0.9 % | 4.2 % |
| 57 | Butler County | 14,156 | -1.3 % | 3.9 % |
| 58 | Cass County | 13,024 | -0.8 % | 3.2 % |
| 59 | Wright County | 12,729 | -1.7 % | 2.9 % |
| 60 | Grundy County | 12,405 | 0.5 % | 3.2 % |
| 61 | Lyon County | 12,378 | 3.8 % | 2.6 % |
| 62 | Appanoose County | 12,106 | -1.7 % | 4.0 % |
| 63 | Union County | 11,955 | -1.5 % | 3.5 % |
| 64 | Shelby County | 11,821 | 0.6 % | 2.8 % |
| 65 | Chickasaw County | 11,719 | -2.4 % | 2.9 % |
| 66 | Cherokee County | 11,658 | 0.0 % | 2.6 % |
| 67 | Guthrie County | 10,774 | 1.4 % | 3.5 % |
| 68 | Mitchell County | 10,632 | 0.7 % | 2.8 % |
| 69 | Louisa County | 10,630 | -1.9 % | 3.8 % |
| 70 | Hancock County | 10,616 | -1.6 % | 3.1 % |
| 71 | Winnebago County | 10,383 | -2.7 % | 3.5 % |
| 72 | Montgomery County | 10,063 | -2.5 % | 2.9 % |
| 73 | Franklin County | 10,024 | 0.1 % | 3.5 % |
| 74 | Keokuk County | 9,855 | -1.8 % | 3.5 % |
| 75 | Calhoun County | 9,711 | -2.2 % | 3.1 % |
| 76 | Humboldt County | 9,617 | 0.2 % | 3.2 % |
| 77 | Sac County | 9,533 | -3.0 % | 3.2 % |
| 78 | Clarke County | 9,524 | -2.3 % | 3.2 % |
| 79 | Howard County | 9,360 | -1.2 % | 3.2 % |
| 80 | Davis County | 9,193 | 0.9 % | 3.3 % |
| 81 | Emmet County | 9,162 | -2.4 % | 3.8 % |
| 82 | Palo Alto County | 8,809 | -2.1 % | 2.7 % |
| 83 | Lucas County | 8,758 | 1.4 % | 3.8 % |
| 84 | Greene County | 8,662 | -1.1 % | 3.4 % |
| 85 | Monona County | 8,429 | -3.7 % | 3.0 % |
| 86 | Decatur County | 7,656 | -1.4 % | 3.3 % |
| 87 | Adair County | 7,431 | -0.8 % | 2.5 % |
| 88 | Monroe County | 7,373 | -2.6 % | 4.0 % |
| 89 | Worth County | 7,307 | -1.8 % | 3.0 % |
| 90 | Van Buren County | 7,217 | 0.2 % | 3.5 % |
| 91 | Pocahontas County | 7,006 | -1.0 % | 3.5 % |
| 92 | Ida County | 6,810 | -2.9 % | 3.0 % |
| 93 | Wayne County | 6,622 | 2.0 % | 3.1 % |
| 94 | Fremont County | 6,494 | -1.6 % | 3.5 % |
| 95 | Osceola County | 6,036 | -2.5 % | 2.3 % |
| 96 | Taylor County | 5,825 | -1.1 % | 2.4 % |
| 97 | Audubon County | 5,562 | -2.0 % | 2.8 % |
| 98 | Ringgold County | 4,608 | -1.2 % | 2.9 % |
| 99 | Adams County | 3,606 | -2.8 % | 2.7 % |