Iowa Immigrant or Foreign-Born Population By County in 2021 (ACS-5Yrs)
Based on the US Census ACS-5Yrs estimates, in 2021, the total immigrant or foreign-born population in Iowa was 173.86K which was 5.47% of Iowa's population. Among all Iowa counties, Polk had the highest immigrant population (46.13K) and immigrants constituted 9.44% of its population, followed by Johnson (pop: 16.45K, perc: 10.83%), and then Linn (pop: 11.40K, perc: 4.99%).
On the other hand, the counties with the least number of immigrant population were: Adams (pop: 11, perc: 0.30%), Ringgold (pop: 28, perc: 0.59%), and Monona (pop: 36, perc: 0.41%),
The chart and table below shows the immigrant or foreign-born population of each county and the percentage of each county's population that are immigrants.
You can see similar information for other states and by state for the United States.
| County | Immigrant Population | % of County Population |
|---|---|---|
| Adair | 96 | 1.29 |
| Adams | 11 | 0.30 |
| Allamakee | 748 | 5.32 |
| Appanoose | 103 | 0.84 |
| Audubon | 51 | 0.90 |
| Benton | 186 | 0.73 |
| Black Hawk | 8587 | 6.54 |
| Boone | 453 | 1.70 |
| Bremer | 486 | 1.96 |
| Buchanan | 290 | 1.41 |
| Buena Vista | 4266 | 20.59 |
| Butler | 224 | 1.55 |
| Calhoun | 134 | 1.35 |
| Carroll | 387 | 1.87 |
| Cass | 209 | 1.59 |
| Cedar | 302 | 1.63 |
| Cerro Gordo | 833 | 1.93 |
| Cherokee | 283 | 2.44 |
| Chickasaw | 157 | 1.31 |
| Clarke | 657 | 6.75 |
| Clay | 233 | 1.42 |
| Clayton | 300 | 1.75 |
| Clinton | 612 | 1.31 |
| Crawford | 2802 | 16.93 |
| Dallas | 8730 | 9.04 |
| Davis | 141 | 1.56 |
| Decatur | 165 | 2.14 |
| Delaware | 79 | 0.45 |
| Des Moines | 770 | 1.97 |
| Dickinson | 355 | 2.02 |
| Dubuque | 2742 | 2.78 |
| Emmet | 529 | 5.61 |
| Fayette | 295 | 1.51 |
| Floyd | 593 | 3.78 |
| Franklin | 505 | 5.02 |
| Fremont | 66 | 0.99 |
| Greene | 136 | 1.54 |
| Grundy | 195 | 1.58 |
| Guthrie | 177 | 1.67 |
| Hamilton | 548 | 3.64 |
| Hancock | 169 | 1.56 |
| Hardin | 540 | 3.18 |
| Harrison | 80 | 0.55 |
| Henry | 818 | 3.99 |
| Howard | 100 | 1.06 |
| Humboldt | 283 | 2.94 |
| Ida | 93 | 1.33 |
| Iowa | 165 | 0.99 |
| Jackson | 205 | 1.05 |
| Jasper | 854 | 2.27 |
| Jefferson | 1906 | 12.03 |
| Johnson | 16445 | 10.83 |
| Jones | 157 | 0.76 |
| Keokuk | 98 | 0.98 |
| Kossuth | 273 | 1.84 |
| Lee | 550 | 1.63 |
| Linn | 11395 | 4.99 |
| Louisa | 1044 | 9.59 |
| Lucas | 245 | 2.83 |
| Lyon | 227 | 1.90 |
| Madison | 211 | 1.29 |
| Mahaska | 409 | 1.85 |
| Marion | 720 | 2.16 |
| Marshall | 5293 | 13.19 |
| Mills | 191 | 1.30 |
| Mitchell | 172 | 1.63 |
| Monona | 36 | 0.41 |
| Monroe | 100 | 1.32 |
| Montgomery | 67 | 0.65 |
| Muscatine | 2953 | 6.84 |
| O'Brien | 347 | 2.45 |
| Osceola | 323 | 5.24 |
| Page | 231 | 1.52 |
| Palo Alto | 215 | 2.39 |
| Plymouth | 931 | 3.65 |
| Pocahontas | 189 | 2.67 |
| Polk | 46131 | 9.44 |
| Pottawattamie | 3738 | 4.00 |
| Poweshiek | 495 | 2.66 |
| Ringgold | 28 | 0.59 |
| Sac | 167 | 1.70 |
| Scott | 7312 | 4.20 |
| Shelby | 232 | 1.97 |
| Sioux | 2080 | 5.84 |
| Story | 9064 | 9.24 |
| Tama | 929 | 5.44 |
| Taylor | 280 | 4.72 |
| Union | 237 | 1.94 |
| Van Buren | 97 | 1.35 |
| Wapello | 2605 | 7.37 |
| Warren | 849 | 1.64 |
| Washington | 808 | 3.59 |
| Wayne | 65 | 1.00 |
| Webster | 973 | 2.62 |
| Winnebago | 334 | 3.11 |
| Winneshiek | 439 | 2.18 |
| Woodbury | 9946 | 9.46 |
| Worth | 54 | 0.73 |
| Wright | 530 | 4.08 |
