Iowa Natural Population Increase By County in 2020
Updated on June 30, 2022.
According to the US Census Bureau estimates, in 2020, the natural population increase for Iowa was 6,211, and the top three counties that had the highest natural population increase were:
- Iowa: 6,211
- Polk County: 2,558
- Johnson County: 884
On the other hand, the top 3 counties that had the lowest natural population increase were:
- Lee County: -134
- Cerro Gordo County: -79
- Page County: -75
Use the interactive visualization and the table below to explore the natural population increase for each Iowa county in 2020. You can also find links to the historical natural population increase for each county below.
Natural Population Increase refers to the number of births minuse the number of deaths.
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Related Topics: Iowa Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
Iowa Natural Population Increase By County in 2020
See this information for other years:
Iowa Natural Population Increase By County in 2020
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| County | Natural Pop. Increase |
|---|---|
| Adair | 2 |
| Adams | -3 |
| Allamakee | -18 |
| Appanoose | -29 |
| Audubon | -16 |
| Benton | 25 |
| Black Hawk | 312 |
| Boone | -56 |
| Bremer | 25 |
| Buchanan | 71 |
| Buena Vista | 141 |
| Butler | -40 |
| Calhoun | -39 |
| Carroll | -17 |
| Cass | -48 |
| Cedar | -23 |
| Cerro Gordo | -79 |
| Cherokee | -56 |
| Chickasaw | 8 |
| Clarke | 10 |
| Clay | -5 |
| Clayton | -34 |
| Clinton | -13 |
| Crawford | 60 |
| Dallas | 771 |
| Davis | 74 |
| Decatur | 12 |
| Delaware | -1 |
| Des Moines | -30 |
| Dickinson | -34 |
| Dubuque | 226 |
| Emmet | -7 |
| Fayette | -31 |
| Floyd | -5 |
| Franklin | -6 |
| Fremont | -32 |
| Greene | -20 |
| Grundy | -13 |
| Guthrie | -32 |
| Hamilton | -2 |
| Hancock | -9 |
| Hardin | -74 |
| Harrison | -33 |
| Henry | -9 |
| Howard | -5 |
| Humboldt | -19 |
| Ida | -40 |
| Iowa | 6211 |
| Jackson | -31 |
| Jasper | -1 |
| Jefferson | -50 |
| Johnson | 884 |
| Jones | -32 |
| Keokuk | -9 |
| Kossuth | -5 |
| Lee | -134 |
| Linn | 753 |
| Louisa | -2 |
| Lucas | 4 |
| Lyon | 66 |
| Madison | 17 |
| Mahaska | 13 |
| Marion | -29 |
| Marshall | 14 |
| Mills | -16 |
| Mitchell | 2 |
| Monona | -55 |
| Monroe | 8 |
| Montgomery | -43 |
| Muscatine | 120 |
| O'Brien | -21 |
| Osceola | -12 |
| Page | -75 |
| Palo Alto | -25 |
| Plymouth | 41 |
| Pocahontas | -14 |
| Polk | 2558 |
| Pottawattamie | 16 |
| Poweshiek | -60 |
| Ringgold | -19 |
| Sac | -11 |
| Scott | 475 |
| Shelby | -12 |
| Sioux | 237 |
| Story | 262 |
| Tama | 12 |
| Taylor | -4 |
| Union | -18 |
| Van Buren | -1 |
| Wapello | 30 |
| Warren | 115 |
| Washington | 59 |
| Wayne | -2 |
| Webster | -13 |
| Winnebago | -31 |
| Winneshiek | -11 |
| Woodbury | 453 |
| Worth | 14 |
| Wright | -16 |
Historical Natural Population Increase for Counties in Iowa
Use the links below to find the historical natural population increase for each county in Iowa.