Ranking of Iowa Counties By Birth Rate per 1K in 2015
Updated on June 21, 2025.
Based on the US Census Vintage data estimates, in 2015, the Birth Rate per 1K for Iowa was 12.74. Among all Iowa counties, Dallas County had the highest birth rate (15.87), followed by Davis County (15.63), and Woodbury County (15.08).
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), 2015 Census.
See this for other years:
Ranking of Iowa Counties By Birth Rate per 1K in 2015
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| Rank | County | Birth Rate |
|---|---|---|
| 1 | Dallas County | 15.87 |
| 2 | Davis County | 15.63 |
| 3 | Woodbury County | 15.08 |
| 4 | Polk County | 15.01 |
| 5 | Buena Vista County | 14.64 |
| 6 | Washington County | 14.62 |
| 7 | Sioux County | 14.52 |
| 8 | Lyon County | 13.89 |
| 9 | Osceola County | 13.88 |
| 10 | Taylor County | 13.85 |
| 11 | Louisa County | 13.75 |
| 12 | Clarke County | 13.69 |
| 13 | Howard County | 13.6 |
| 14 | Buchanan County | 13.59 |
| 15 | Carroll County | 13.49 |
| 16 | Tama County | 13.32 |
| 17 | Black Hawk County | 13.3 |
| 18 | Delaware County | 13.22 |
| 19 | Linn County | 13.19 |
| 19 | Wayne County | 13.19 |
| 20 | Scott County | 13.16 |
| 21 | Mahaska County | 13.15 |
| 22 | Allamakee County | 12.95 |
| 23 | Clay County | 12.86 |
| 23 | Pottawattamie County | 12.86 |
| 24 | Johnson County | 12.83 |
| 25 | Palo Alto County | 12.82 |
| 26 | O'Brien County | 12.8 |
| 27 | Dubuque County | 12.79 |
| 28 | Marshall County | 12.73 |
| 29 | Hamilton County | 12.48 |
| 30 | Benton County | 12.45 |
| 31 | Wright County | 12.43 |
| 32 | Wapello County | 12.39 |
| 33 | Montgomery County | 12.37 |
| 34 | Clinton County | 12.35 |
| 35 | Floyd County | 12.34 |
| 36 | Crawford County | 12.27 |
| 37 | Lee County | 12.26 |
| 38 | Webster County | 12.24 |
| 39 | Pocahontas County | 12.23 |
| 40 | Plymouth County | 12.2 |
| 41 | Muscatine County | 12.13 |
| 42 | Calhoun County | 12.11 |
| 43 | Lucas County | 12.06 |
| 44 | Henry County | 11.99 |
| 45 | Franklin County | 11.86 |
| 46 | Audubon County | 11.85 |
| 47 | Kossuth County | 11.72 |
| 48 | Humboldt County | 11.67 |
| 49 | Greene County | 11.62 |
| 50 | Iowa County | 11.59 |
| 51 | Appanoose County | 11.48 |
| 51 | Fremont County | 11.48 |
| 52 | Ringgold County | 11.47 |
| 53 | Decatur County | 11.37 |
| 54 | Jasper County | 11.35 |
| 55 | Page County | 11.31 |
| 56 | Cerro Gordo County | 11.25 |
| 57 | Shelby County | 11.23 |
| 58 | Mills County | 11.2 |
| 59 | Cherokee County | 11.16 |
| 59 | Emmet County | 11.16 |
| 60 | Warren County | 11.11 |
| 61 | Des Moines County | 11.1 |
| 62 | Marion County | 10.93 |
| 63 | Boone County | 10.92 |
| 64 | Mitchell County | 10.86 |
| 64 | Winnebago County | 10.86 |
| 65 | Sac County | 10.8 |
| 66 | Hancock County | 10.78 |
| 67 | Bremer County | 10.76 |
| 68 | Adams County | 10.75 |
| 69 | Cedar County | 10.73 |
| 70 | Monroe County | 10.71 |
| 71 | Hardin County | 10.7 |
| 71 | Harrison County | 10.7 |
| 71 | Monona County | 10.7 |
| 72 | Guthrie County | 10.68 |
| 73 | Clayton County | 10.65 |
| 74 | Van Buren County | 10.62 |
| 75 | Butler County | 10.52 |
| 75 | Jackson County | 10.52 |
| 76 | Chickasaw County | 10.41 |
| 77 | Fayette County | 10.39 |
| 78 | Keokuk County | 10.37 |
| 79 | Ida County | 10.33 |
| 80 | Jones County | 10.3 |
| 81 | Dickinson County | 10.22 |
| 82 | Madison County | 10.15 |
| 83 | Poweshiek County | 10.05 |
| 84 | Grundy County | 9.92 |
| 85 | Cass County | 9.87 |
| 86 | Jefferson County | 9.63 |
| 87 | Worth County | 9.43 |
| 88 | Story County | 9.27 |
| 89 | Union County | 9.18 |
| 90 | Adair County | 8.69 |
| 91 | Winneshiek County | 8.49 |