Ranking of Iowa Counties By Net Migration in 2021
Updated on June 21, 2025.
Based on the US Census Vintage data estimates, in 2021, the Net Migration for Iowa was 5.65K. Among all Iowa counties, Dallas County had the highest net migration (3.01K), followed by Polk County (2.60K), and Johnson County (1.14K).
The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties.
You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.
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Related Topics: Iowa Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2021 Census.
See this for other years:
Ranking of Iowa Counties By Net Migration in 2021
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| Rank | County | Net Migration |
|---|---|---|
| 1 | Dallas County | 3014 |
| 2 | Polk County | 2603 |
| 3 | Johnson County | 1142 |
| 4 | Warren County | 867 |
| 5 | Story County | 775 |
| 6 | Webster County | 303 |
| 7 | Jones County | 232 |
| 8 | Benton County | 207 |
| 9 | Harrison County | 204 |
| 10 | Dickinson County | 167 |
| 11 | Bremer County | 155 |
| 12 | Clinton County | 150 |
| 13 | Madison County | 146 |
| 14 | Boone County | 141 |
| 15 | Clay County | 137 |
| 16 | Jefferson County | 125 |
| 17 | Shelby County | 106 |
| 18 | Jasper County | 105 |
| 18 | Lucas County | 105 |
| 19 | Page County | 96 |
| 20 | Delaware County | 83 |
| 21 | Butler County | 80 |
| 22 | Adair County | 76 |
| 22 | Mills County | 76 |
| 23 | Decatur County | 71 |
| 24 | Lyon County | 70 |
| 25 | Clayton County | 69 |
| 26 | Montgomery County | 68 |
| 27 | Appanoose County | 65 |
| 28 | Carroll County | 62 |
| 29 | Humboldt County | 61 |
| 30 | Grundy County | 60 |
| 31 | Calhoun County | 55 |
| 32 | Clarke County | 50 |
| 33 | Buchanan County | 47 |
| 33 | Cass County | 47 |
| 34 | Marion County | 46 |
| 35 | Winnebago County | 45 |
| 36 | Fremont County | 43 |
| 37 | Ringgold County | 40 |
| 38 | Van Buren County | 37 |
| 39 | Emmet County | 35 |
| 40 | Taylor County | 32 |
| 41 | Poweshiek County | 31 |
| 42 | Henry County | 30 |
| 43 | Monroe County | 28 |
| 44 | Plymouth County | 26 |
| 45 | Guthrie County | 23 |
| 46 | Wayne County | 16 |
| 47 | Hardin County | 15 |
| 47 | Pocahontas County | 15 |
| 48 | Jackson County | 8 |
| 49 | Howard County | 7 |
| 50 | Greene County | 4 |
| 51 | Sac County | 3 |
| 52 | Ida County | 2 |
| 53 | Mitchell County | -1 |
| 54 | Osceola County | -4 |
| 55 | Audubon County | -6 |
| 56 | Cedar County | -19 |
| 57 | Wapello County | -21 |
| 58 | Davis County | -28 |
| 58 | Iowa County | -28 |
| 59 | Franklin County | -30 |
| 60 | Union County | -31 |
| 61 | Keokuk County | -33 |
| 62 | Worth County | -40 |
| 63 | Fayette County | -47 |
| 64 | Palo Alto County | -48 |
| 65 | O'Brien County | -49 |
| 66 | Hancock County | -51 |
| 67 | Washington County | -59 |
| 68 | Louisa County | -60 |
| 68 | Monona County | -60 |
| 69 | Adams County | -61 |
| 70 | Wright County | -64 |
| 71 | Chickasaw County | -67 |
| 72 | Cherokee County | -74 |
| 73 | Floyd County | -85 |
| 74 | Allamakee County | -88 |
| 75 | Pottawattamie County | -90 |
| 76 | Hamilton County | -92 |
| 77 | Winneshiek County | -94 |
| 78 | Cerro Gordo County | -95 |
| 79 | Sioux County | -104 |
| 80 | Marshall County | -123 |
| 81 | Buena Vista County | -139 |
| 82 | Lee County | -150 |
| 83 | Tama County | -155 |
| 84 | Mahaska County | -156 |
| 85 | Des Moines County | -207 |
| 86 | Kossuth County | -210 |
| 87 | Crawford County | -268 |
| 88 | Woodbury County | -383 |
| 89 | Muscatine County | -405 |
| 90 | Scott County | -406 |
| 91 | Dubuque County | -534 |
| 92 | Black Hawk County | -630 |
| 93 | Linn County | -1366 |
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