Iowa Net Migration By County in 2017
According to the US Census Bureau estimates, in 2017, the net migration for Iowa was 2,346. Polk County had the highest net migration (3,116) followed by Dallas County (2,122), and Johnson County (1,499). On the other hand, Black Hawk County had the lowest net migration (-1,232), followed by Woodbury County (-1,027), and Sioux County (-394).
Net migration for a county refers to the difference between the number of migrants, both domestic and international, moving to the county and those leaving the county. Or to put it simply, the net migration for a given county is the inbound migration minus the outbound migration for that county.
You can also see similar information for other states and also by state for the United States.
Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.
| County | Net Migration |
|---|---|
| Adair | 67 |
| Adams | -37 |
| Allamakee | -77 |
| Appanoose | -122 |
| Audubon | -45 |
| Benton | -69 |
| Black Hawk | -1232 |
| Boone | 67 |
| Bremer | 61 |
| Buchanan | 67 |
| Buena Vista | -325 |
| Butler | -51 |
| Calhoun | -32 |
| Carroll | -109 |
| Cass | 27 |
| Cedar | 125 |
| Cerro Gordo | -25 |
| Cherokee | -40 |
| Chickasaw | -81 |
| Clarke | 83 |
| Clay | -173 |
| Clayton | 8 |
| Clinton | -299 |
| Crawford | -86 |
| Dallas | 2122 |
| Davis | 0 |
| Decatur | -119 |
| Delaware | -158 |
| Des Moines | -233 |
| Dickinson | 119 |
| Dubuque | 88 |
| Emmet | -136 |
| Fayette | -134 |
| Floyd | -107 |
| Franklin | -37 |
| Fremont | -8 |
| Greene | -21 |
| Grundy | 42 |
| Guthrie | 27 |
| Hamilton | -34 |
| Hancock | -121 |
| Hardin | -78 |
| Harrison | 70 |
| Henry | 211 |
| Howard | -46 |
| Humboldt | 43 |
| Ida | -72 |
| Iowa | -78 |
| Jackson | -41 |
| Jasper | 295 |
| Jefferson | 137 |
| Johnson | 1499 |
| Jones | 195 |
| Keokuk | -19 |
| Kossuth | -153 |
| Lee | -197 |
| Linn | 1253 |
| Louisa | -31 |
| Lucas | -22 |
| Lyon | -55 |
| Madison | 191 |
| Mahaska | 97 |
| Marion | -71 |
| Marshall | -78 |
| Mills | 5 |
| Mitchell | -70 |
| Monona | -11 |
| Monroe | -8 |
| Montgomery | 4 |
| Muscatine | -226 |
| O'Brien | -106 |
| Osceola | -53 |
| Page | -41 |
| Palo Alto | 42 |
| Plymouth | -169 |
| Pocahontas | -2 |
| Polk | 3116 |
| Pottawattamie | -310 |
| Poweshiek | 119 |
| Ringgold | 53 |
| Sac | 5 |
| Scott | -247 |
| Shelby | -35 |
| Sioux | -394 |
| Story | -54 |
| Tama | -164 |
| Taylor | -73 |
| Union | 89 |
| Van Buren | -85 |
| Wapello | -300 |
| Warren | 608 |
| Washington | 95 |
| Wayne | 32 |
| Webster | -144 |
| Winnebago | -13 |
| Winneshiek | -267 |
| Woodbury | -1027 |
| Worth | -11 |
| Wright | -54 |