Data / Rankings / Crude birth rate, July to June / Counties in Iowa

Counties in Iowa by birth rate (July to June)

Davis County had the highest birth rate (July to June) of 99 counties in 2024, at 18.76 per 1,000 inhabitants. Story County had the lowest, at 7.99 per 1,000 inhabitants. The median was 10.84 per 1,000 inhabitants and the figure for Iowa was 11.26 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Highest18.76Davis County
Lowest7.99Story County
Median10.8499 counties
Iowa11.26History

Top 40 counties, 2024

CSVChart (SVG)

Davis CountyDavis County: 18.76 per 1,000 inhabitants18.76Wayne CountyWayne County: 16.99 per 1,000 inhabitants16.99Wright CountyWright County: 15.35 per 1,000 inhabitants15.35Palo Alto CountyPalo Alto County: 13.87 per 1,000 inhabitants13.87Buchanan CountyBuchanan County: 13.8 per 1,000 inhabitants13.8Clarke CountyClarke County: 13.72 per 1,000 inhabitants13.72Hamilton CountyHamilton County: 13.71 per 1,000 inhabitants13.71Sioux CountySioux County: 13.18 per 1,000 inhabitants13.18Wapello CountyWapello County: 13.16 per 1,000 inhabitants13.16Woodbury CountyWoodbury County: 13.11 per 1,000 inhabitants13.11Washington CountyWashington County: 13.06 per 1,000 inhabitants13.06Buena Vista CountyBuena Vista County: 12.97 per 1,000 inhabitants12.97O'Brien CountyO'Brien County: 12.75 per 1,000 inhabitants12.75Kossuth CountyKossuth County: 12.66 per 1,000 inhabitants12.66Van Buren CountyVan Buren County: 12.61 per 1,000 inhabitants12.61Crawford CountyCrawford County: 12.59 per 1,000 inhabitants12.59Howard CountyHoward County: 12.53 per 1,000 inhabitants12.53Polk CountyPolk County: 12.44 per 1,000 inhabitants12.44Sac CountySac County: 12.43 per 1,000 inhabitants12.43Tama CountyTama County: 12.37 per 1,000 inhabitants12.37Decatur CountyDecatur County: 12.3 per 1,000 inhabitants12.3Dallas CountyDallas County: 12.24 per 1,000 inhabitants12.24Webster CountyWebster County: 12.22 per 1,000 inhabitants12.22Marshall CountyMarshall County: 12.12 per 1,000 inhabitants12.12Lucas CountyLucas County: 12.04 per 1,000 inhabitants12.04Chickasaw CountyChickasaw County: 12.03 per 1,000 inhabitants12.03Black Hawk CountyBlack Hawk County: 11.96 per 1,000 inhabitants11.96Audubon CountyAudubon County: 11.92 per 1,000 inhabitants11.92Lyon CountyLyon County: 11.9 per 1,000 inhabitants11.9Franklin CountyFranklin County: 11.68 per 1,000 inhabitants11.68Worth CountyWorth County: 11.62 per 1,000 inhabitants11.62Emmet CountyEmmet County: 11.61 per 1,000 inhabitants11.61Monroe CountyMonroe County: 11.56 per 1,000 inhabitants11.56Delaware CountyDelaware County: 11.54 per 1,000 inhabitants11.54Floyd CountyFloyd County: 11.52 per 1,000 inhabitants11.52Iowa CountyIowa County: 11.49 per 1,000 inhabitants11.49Jasper CountyJasper County: 11.43 per 1,000 inhabitants11.43Taylor CountyTaylor County: 11.39 per 1,000 inhabitants11.39Adair CountyAdair County: 11.29 per 1,000 inhabitants11.29Allamakee CountyAllamakee County: 11.28 per 1,000 inhabitants11.28
per 1,000 inhabitants. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2024
per 1,000 inhabitants		Change on 2023
1Davis County Estimated18.76+2.59 pts
2Wayne County Estimated16.99+1.79 pts
3Wright County Estimated15.35-0.68 pts
4Palo Alto County Estimated13.87-0.66 pts
5Buchanan County Estimated13.8+0.82 pts
6Clarke County Estimated13.72+2.34 pts
7Hamilton County Estimated13.71+1.02 pts
8Sioux County Estimated13.18-0.29 pts
9Wapello County Estimated13.16+0.7 pts
10Woodbury County Estimated13.11-0.58 pts
11Washington County Estimated13.06+0.69 pts
12Buena Vista County Estimated12.97-0.83 pts
13O'Brien County Estimated12.75+0.03 pts
14Kossuth County Estimated12.66+1.12 pts
15Van Buren County Estimated12.61+0.75 pts
16Crawford County Estimated12.59-1.54 pts
17Howard County Estimated12.53+0.15 pts
18Polk County Estimated12.44-0.04 pts
19Sac County Estimated12.43+0.04 pts
20Tama County Estimated12.37+0.46 pts
21Decatur County Estimated12.3+0.36 pts
22Dallas County Estimated12.24-0.2 pts
23Webster County Estimated12.22+0.06 pts
24Marshall County Estimated12.12-0.09 pts
25Lucas County Estimated12.04-0.06 pts
26Chickasaw County Estimated12.03+1.55 pts
27Black Hawk County Estimated11.96-0.07 pts
28Audubon County Estimated11.92+0.2 pts
29Lyon County Estimated11.9-1.99 pts
30Franklin County Estimated11.68-0.94 pts
31Worth County Estimated11.62+0.71 pts
32Emmet County Estimated11.61-1.03 pts
33Monroe County Estimated11.56+0.37 pts
34Delaware County Estimated11.54-0.4 pts
35Floyd County Estimated11.52-0.5 pts
36Iowa County Estimated11.49-0.23 pts
37Jasper County Estimated11.43+0.76 pts
38Taylor County Estimated11.39-2.19 pts
39Adair County Estimated11.29-0.4 pts
40Allamakee County Estimated11.28-0.4 pts
41Dubuque County Estimated11.28+0.08 pts
42Fayette County Estimated11.27+0.21 pts
43Grundy County Estimated11.23+1.29 pts
44Linn County Estimated11.12+0.24 pts
45Warren County Estimated11.1-0.49 pts
46Plymouth County Estimated11.09-0.62 pts
47Lee County Estimated11.08+0.73 pts
48Monona County Estimated11.04+0.14 pts
49Benton County Estimated10.97+1.22 pts
50Carroll County Estimated10.84-0.36 pts
51Clinton County Estimated10.81-0.64 pts
52Muscatine County Estimated10.78+0.11 pts
53Cherokee County Estimated10.73+0.76 pts
54Mahaska County Estimated10.72+0.14 pts
55Johnson County Estimated10.7-0.11 pts
56Mitchell County Estimated10.69-0.97 pts
57Scott County Estimated10.69+0.33 pts
58Montgomery County Estimated10.59-0.02 pts
59Union County Estimated10.5-0.01 pts
60Pocahontas County Estimated10.49-0.45 pts
61Osceola County Estimated10.48-1.93 pts
62Harrison County Estimated10.46-1.49 pts
63Clayton County Estimated10.41-1.33 pts
64Appanoose County Estimated10.4+0.26 pts
65Jackson County Estimated10.34-0.73 pts
66Ida County Estimated10.31-0.94 pts
67Bremer County Estimated10.26+0.1 pts
68Hardin County Estimated10.25-0.18 pts
69Keokuk County Estimated10.24-1.37 pts
70Greene County Estimated10.2-0.08 pts
71Humboldt County Estimated10.2-0.82 pts
72Des Moines County Estimated10.18-0.46 pts
73Cass County Estimated10.11+0.28 pts
74Hancock County Estimated10.07-1.01 pts
75Marion County Estimated10.06-0.2 pts
76Butler County Estimated9.9+0.13 pts
77Fremont County Estimated9.88-1.41 pts
78Cedar County Estimated9.84+1.32 pts
79Adams County Estimated9.78-0.56 pts
80Shelby County Estimated9.76-1.22 pts
81Pottawattamie County Estimated9.74-1.09 pts
82Jones County Estimated9.6+0.96 pts
83Ringgold County Estimated9.45-0.83 pts
84Madison County Estimated9.42-0.43 pts
85Boone County Estimated9.42-0.44 pts
86Cerro Gordo County Estimated9.37-0.54 pts
87Louisa County Estimated9.29-1.29 pts
88Calhoun County Estimated9.27-0.68 pts
89Mills County Estimated9.26+0.35 pts
90Clay County Estimated9.26-2 pts
91Henry County Estimated9.13-0.94 pts
92Winnebago County Estimated8.9+0.41 pts
93Winneshiek County Estimated8.89-0.3 pts
94Poweshiek County Estimated8.89-0.3 pts
95Guthrie County Estimated8.87+0.37 pts
96Jefferson County Estimated8.42-0.02 pts
97Dickinson County Estimated8.41-1.06 pts
98Page County Estimated8-0.09 pts
99Story County Estimated7.99-0.24 pts

Other periods

About this ranking

Estimated live births from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.

Published Census population estimates rate. The year identifies the end of the July-to-June period. These estimates can be revised and differ from calendar-year birth rates.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Rank Counties in Iowa by birth rate (July to June) using official data, and cite the source.
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Questions

Which county has the highest birth rate (July to June)?

Davis County, with 18.76 per 1,000 inhabitants in 2024, according to the U.S. Census Bureau.

Which county has the lowest birth rate (July to June)?

Story County, with 7.99 per 1,000 inhabitants in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program: birth rate, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.

Crude birth rate, July to June: other rankings

Counties in Iowa: more rankings