Ranking of Iowa Counties By Natural Population Increase in 2018
Updated on January 26, 2024.
Based on the US Census Vintage data estimates, in 2018, the Natural Population Increase for Iowa was 7.91K. Among all Iowa counties, Iowa had the highest natural population increase (7.91K), followed by Polk County (3.13K), and Johnson County (1.02K).
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.
Related Topics: Iowa Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2018 Census.
See this for other years:
Ranking of Iowa Counties By Natural Population Increase in 2018
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| Rank | County | Natural Pop. Increase |
|---|---|---|
| 1 | Iowa | 7911 |
| 2 | Polk County | 3130 |
| 3 | Johnson County | 1023 |
| 4 | Linn County | 956 |
| 5 | Dallas County | 721 |
| 6 | Scott County | 539 |
| 7 | Black Hawk County | 472 |
| 8 | Woodbury County | 470 |
| 9 | Story County | 283 |
| 10 | Sioux County | 236 |
| 11 | Dubuque County | 214 |
| 12 | Pottawattamie County | 184 |
| 13 | Warren County | 141 |
| 14 | Muscatine County | 128 |
| 15 | Buena Vista County | 107 |
| 16 | Lyon County | 83 |
| 17 | Davis County | 66 |
| 18 | Bremer County | 65 |
| 19 | Marshall County | 61 |
| 20 | Crawford County | 55 |
| 21 | Washington County | 53 |
| 22 | Buchanan County | 49 |
| 23 | Webster County | 48 |
| 24 | Delaware County | 47 |
| 25 | Des Moines County | 36 |
| 26 | Plymouth County | 29 |
| 27 | Chickasaw County | 28 |
| 28 | Clay County | 27 |
| 29 | Wapello County | 26 |
| 30 | Mills County | 24 |
| 31 | Louisa County | 18 |
| 31 | Mahaska County | 18 |
| 32 | Clarke County | 14 |
| 33 | Henry County | 13 |
| 34 | Lucas County | 10 |
| 35 | Keokuk County | 8 |
| 36 | Benton County | 7 |
| 36 | Van Buren County | 7 |
| 37 | Hancock County | 5 |
| 38 | Allamakee County | 4 |
| 38 | Decatur County | 4 |
| 39 | Taylor County | 1 |
| 40 | Fremont County | 0 |
| 41 | Carroll County | -1 |
| 41 | Cedar County | -1 |
| 41 | Howard County | -1 |
| 42 | Floyd County | -2 |
| 43 | Guthrie County | -3 |
| 43 | Jones County | -3 |
| 43 | Osceola County | -3 |
| 44 | Madison County | -5 |
| 44 | Marion County | -5 |
| 45 | Humboldt County | -8 |
| 46 | Worth County | -9 |
| 47 | Audubon County | -10 |
| 47 | Kossuth County | -10 |
| 48 | Winnebago County | -11 |
| 49 | Adair County | -14 |
| 49 | Hamilton County | -14 |
| 49 | Wayne County | -14 |
| 50 | Adams County | -15 |
| 50 | Palo Alto County | -15 |
| 51 | Greene County | -16 |
| 51 | Jasper County | -16 |
| 51 | Winneshiek County | -16 |
| 52 | Emmet County | -17 |
| 52 | Grundy County | -17 |
| 53 | Mitchell County | -18 |
| 54 | Jefferson County | -19 |
| 55 | Poweshiek County | -20 |
| 56 | Harrison County | -21 |
| 56 | Union County | -21 |
| 57 | Clayton County | -22 |
| 57 | Monroe County | -22 |
| 58 | Hardin County | -24 |
| 59 | Franklin County | -29 |
| 60 | Tama County | -30 |
| 61 | Wright County | -32 |
| 62 | Calhoun County | -33 |
| 63 | Lee County | -34 |
| 63 | Ringgold County | -34 |
| 64 | Appanoose County | -37 |
| 64 | Pocahontas County | -37 |
| 65 | Boone County | -38 |
| 65 | Jackson County | -38 |
| 66 | O'Brien County | -39 |
| 67 | Cherokee County | -40 |
| 68 | Ida County | -44 |
| 68 | Monona County | -44 |
| 69 | Dickinson County | -45 |
| 69 | Montgomery County | -45 |
| 70 | Cass County | -48 |
| 70 | Shelby County | -48 |
| 71 | Sac County | -56 |
| 72 | Fayette County | -62 |
| 73 | Clinton County | -63 |
| 74 | Page County | -64 |
| 75 | Butler County | -70 |
| 76 | Cerro Gordo County | -81 |