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 2023, at 16.17 per 1,000 inhabitants. Page County had the lowest, at 8.09 per 1,000 inhabitants. The median was 11.18 per 1,000 inhabitants and the figure for Iowa was 11.35 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Highest16.17Davis County
Lowest8.09Page County
Median11.1899 counties
Iowa11.35History

Top 40 counties, 2023

CSVChart (SVG)

Davis CountyDavis County: 16.17 per 1,000 inhabitants16.17Wright CountyWright County: 16.03 per 1,000 inhabitants16.03Wayne CountyWayne County: 15.21 per 1,000 inhabitants15.21Palo Alto CountyPalo Alto County: 14.53 per 1,000 inhabitants14.53Crawford CountyCrawford County: 14.13 per 1,000 inhabitants14.13Lyon CountyLyon County: 13.88 per 1,000 inhabitants13.88Buena Vista CountyBuena Vista County: 13.79 per 1,000 inhabitants13.79Woodbury CountyWoodbury County: 13.69 per 1,000 inhabitants13.69Taylor CountyTaylor County: 13.57 per 1,000 inhabitants13.57Sioux CountySioux County: 13.47 per 1,000 inhabitants13.47Buchanan CountyBuchanan County: 12.99 per 1,000 inhabitants12.99O'Brien CountyO'Brien County: 12.72 per 1,000 inhabitants12.72Hamilton CountyHamilton County: 12.69 per 1,000 inhabitants12.69Emmet CountyEmmet County: 12.65 per 1,000 inhabitants12.65Franklin CountyFranklin County: 12.62 per 1,000 inhabitants12.62Polk CountyPolk County: 12.48 per 1,000 inhabitants12.48Wapello CountyWapello County: 12.46 per 1,000 inhabitants12.46Dallas CountyDallas County: 12.44 per 1,000 inhabitants12.44Osceola CountyOsceola County: 12.41 per 1,000 inhabitants12.41Sac CountySac County: 12.39 per 1,000 inhabitants12.39Howard CountyHoward County: 12.38 per 1,000 inhabitants12.38Washington CountyWashington County: 12.37 per 1,000 inhabitants12.37Marshall CountyMarshall County: 12.21 per 1,000 inhabitants12.21Webster CountyWebster County: 12.16 per 1,000 inhabitants12.16Lucas CountyLucas County: 12.11 per 1,000 inhabitants12.11Black Hawk CountyBlack Hawk County: 12.03 per 1,000 inhabitants12.03Floyd CountyFloyd County: 12.02 per 1,000 inhabitants12.02Harrison CountyHarrison County: 11.96 per 1,000 inhabitants11.96Delaware CountyDelaware County: 11.94 per 1,000 inhabitants11.94Decatur CountyDecatur County: 11.94 per 1,000 inhabitants11.94Tama CountyTama County: 11.91 per 1,000 inhabitants11.91Van Buren CountyVan Buren County: 11.86 per 1,000 inhabitants11.86Clayton CountyClayton County: 11.75 per 1,000 inhabitants11.75Audubon CountyAudubon County: 11.72 per 1,000 inhabitants11.72Iowa CountyIowa County: 11.72 per 1,000 inhabitants11.72Plymouth CountyPlymouth County: 11.7 per 1,000 inhabitants11.7Adair CountyAdair County: 11.69 per 1,000 inhabitants11.69Allamakee CountyAllamakee County: 11.68 per 1,000 inhabitants11.68Mitchell CountyMitchell County: 11.66 per 1,000 inhabitants11.66Keokuk CountyKeokuk County: 11.61 per 1,000 inhabitants11.61
per 1,000 inhabitants. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2023
per 1,000 inhabitants		Change on 2022
1Davis County Estimated16.17-0.55 pts
2Wright County Estimated16.03+3.59 pts
3Wayne County Estimated15.21+1.51 pts
4Palo Alto County Estimated14.53+3.69 pts
5Crawford County Estimated14.13-0.01 pts
6Lyon County Estimated13.88-0.65 pts
7Buena Vista County Estimated13.79+0.04 pts
8Woodbury County Estimated13.69+0.23 pts
9Taylor County Estimated13.57+2.15 pts
10Sioux County Estimated13.47-1.73 pts
11Buchanan County Estimated12.99+0.67 pts
12O'Brien County Estimated12.72-1.92 pts
13Hamilton County Estimated12.69-0.96 pts
14Emmet County Estimated12.65+2.4 pts
15Franklin County Estimated12.62+0.44 pts
16Polk County Estimated12.48-0.56 pts
17Wapello County Estimated12.46-0.69 pts
18Dallas County Estimated12.44-0.63 pts
19Osceola County Estimated12.41+1.8 pts
20Sac County Estimated12.39+0.97 pts
21Howard County Estimated12.38+0.39 pts
22Washington County Estimated12.37+0.79 pts
23Marshall County Estimated12.21+0.45 pts
24Webster County Estimated12.16+1.3 pts
25Lucas County Estimated12.11-1.64 pts
26Black Hawk County Estimated12.03-0.38 pts
27Floyd County Estimated12.02+2.86 pts
28Harrison County Estimated11.96+1.31 pts
29Delaware County Estimated11.94+0.9 pts
30Decatur County Estimated11.94+1.68 pts
31Tama County Estimated11.91+0.85 pts
32Van Buren County Estimated11.86-2.47 pts
33Clayton County Estimated11.75+0.9 pts
34Audubon County Estimated11.72+0.83 pts
35Iowa County Estimated11.72+0.48 pts
36Plymouth County Estimated11.7+0.43 pts
37Adair County Estimated11.69+0.09 pts
38Allamakee County Estimated11.68-2.64 pts
39Mitchell County Estimated11.66-0.65 pts
40Keokuk County Estimated11.61+1.7 pts
41Warren County Estimated11.59+0.58 pts
42Kossuth County Estimated11.54+0.92 pts
43Clinton County Estimated11.45-0.73 pts
44Clarke County Estimated11.38-2.51 pts
45Fremont County Estimated11.29+0.73 pts
46Clay County Estimated11.26+1.92 pts
47Ida County Estimated11.25+1.28 pts
48Carroll County Estimated11.2-0.76 pts
49Dubuque County Estimated11.19-0.21 pts
50Monroe County Estimated11.18+0.87 pts
51Hancock County Estimated11.08-0.35 pts
52Jackson County Estimated11.07+0.43 pts
53Fayette County Estimated11.05+0.02 pts
54Humboldt County Estimated11.02-1.71 pts
55Shelby County Estimated10.98+0.93 pts
56Pocahontas County Estimated10.95-0.24 pts
57Worth County Estimated10.91-0.1 pts
58Monona County Estimated10.9+0.51 pts
59Linn County Estimated10.88-0.41 pts
60Pottawattamie County Estimated10.83+0.38 pts
61Johnson County Estimated10.81+0.11 pts
62Jasper County Estimated10.67+0.43 pts
63Muscatine County Estimated10.660 pts
64Des Moines County Estimated10.64-0.23 pts
65Montgomery County Estimated10.61+0.96 pts
66Louisa County Estimated10.58-0.27 pts
67Mahaska County Estimated10.57-0.04 pts
68Union County Estimated10.51+2.33 pts
69Chickasaw County Estimated10.48-1.61 pts
70Hardin County Estimated10.42+1.56 pts
71Scott County Estimated10.36-0.77 pts
72Lee County Estimated10.35-0.03 pts
73Adams County Estimated10.34-2.1 pts
74Greene County Estimated10.28+0.88 pts
75Ringgold County Estimated10.28+1.9 pts
76Marion County Estimated10.26+0.8 pts
77Bremer County Estimated10.16+0.36 pts
78Appanoose County Estimated10.14-0.19 pts
79Henry County Estimated10.08+0.79 pts
80Cherokee County Estimated9.97-0.81 pts
81Calhoun County Estimated9.95-0.24 pts
82Grundy County Estimated9.94-2.35 pts
83Cerro Gordo County Estimated9.9-0.45 pts
84Madison County Estimated9.86-2.13 pts
85Boone County Estimated9.86+0.04 pts
86Cass County Estimated9.83-0.24 pts
87Butler County Estimated9.77-1.9 pts
88Benton County Estimated9.74-0.74 pts
89Dickinson County Estimated9.46+1.28 pts
90Winneshiek County Estimated9.19-0.2 pts
91Poweshiek County Estimated9.18-0.77 pts
92Mills County Estimated8.91-1.21 pts
93Jones County Estimated8.64-0.69 pts
94Cedar County Estimated8.52-0.62 pts
95Guthrie County Estimated8.5-1.19 pts
96Winnebago County Estimated8.49-0.89 pts
97Jefferson County Estimated8.44+0.15 pts
98Story County Estimated8.23-0.13 pts
99Page County Estimated8.09-0.2 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 16.17 per 1,000 inhabitants in 2023, according to the U.S. Census Bureau.

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

Page County, with 8.09 per 1,000 inhabitants in 2023.

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