Counties in Iowa by births (July to June)

Polk County had the highest births (July to June) of 99 counties in 2022, at 6,511. Ringgold County had the lowest, at 39. The median was 159 and the figure for Iowa was 36,774. Source: the U.S. Census Bureau.

Highest6,511Polk County
Median15999 counties
Iowa36,774History

Top 40 counties, 2022

CSVChart (SVG)

Polk CountyPolk County: 6,511 count6,511Linn CountyLinn County: 2,588 count2,588Scott CountyScott County: 1,937 count1,937Johnson CountyJohnson County: 1,669 count1,669Black Hawk CountyBlack Hawk County: 1,617 count1,617Woodbury CountyWoodbury County: 1,424 count1,424Dallas CountyDallas County: 1,387 count1,387Dubuque CountyDubuque County: 1,127 count1,127Pottawattamie CountyPottawattamie County: 975 count975Story CountyStory County: 834 count834Warren CountyWarren County: 594 count594Clinton CountyClinton County: 565 count565Sioux CountySioux County: 549 count549Marshall CountyMarshall County: 469 count469Wapello CountyWapello County: 463 count463Muscatine CountyMuscatine County: 454 count454Cerro Gordo CountyCerro Gordo County: 441 count441Des Moines CountyDes Moines County: 417 count417Webster CountyWebster County: 401 count401Jasper CountyJasper County: 388 count388Lee CountyLee County: 343 count343Marion CountyMarion County: 317 count317Plymouth CountyPlymouth County: 290 count290Buena Vista CountyBuena Vista County: 285 count285Benton CountyBenton County: 270 count270Boone CountyBoone County: 262 count262Washington CountyWashington County: 261 count261Buchanan CountyBuchanan County: 255 count255Bremer CountyBremer County: 247 count247Carroll CountyCarroll County: 247 count247Mahaska CountyMahaska County: 233 count233Crawford CountyCrawford County: 229 count229Fayette CountyFayette County: 213 count213Jackson CountyJackson County: 206 count206O'Brien CountyO'Brien County: 206 count206Hamilton CountyHamilton County: 203 count203Madison CountyMadison County: 203 count203Allamakee CountyAllamakee County: 201 count201Jones CountyJones County: 195 count195Delaware CountyDelaware County: 194 count194
count. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2022
count
Change on 2021
1Polk County Estimated6,511+3.2%
2Linn County Estimated2,588+2.3%
3Scott County Estimated1,937+4.4%
4Johnson County Estimated1,669+2.3%
5Black Hawk County Estimated1,617+0.6%
6Woodbury County Estimated1,424+2.7%
7Dallas County Estimated1,387+3.8%
8Dubuque County Estimated1,127+5.5%
9Pottawattamie County Estimated975+1.5%
10Story County Estimated834+7.6%
11Warren County Estimated594+3.8%
12Clinton County Estimated565+13.2%
13Sioux County Estimated549+12.5%
14Marshall County Estimated469-1.3%
15Wapello County Estimated463+3.3%
16Muscatine County Estimated454+0.9%
17Cerro Gordo County Estimated441+5.5%
18Des Moines County Estimated417+4%
19Webster County Estimated401-2.4%
20Jasper County Estimated3880%
21Lee County Estimated343-0.9%
22Marion County Estimated317-12.2%
23Plymouth County Estimated290-1.4%
24Buena Vista County Estimated285-7.8%
25Benton County Estimated270+1.1%
26Boone County Estimated262-0.4%
27Washington County Estimated261-16.3%
28Buchanan County Estimated255-6.9%
29Bremer County Estimated247+4.2%
29Carroll County Estimated247+9.3%
31Mahaska County Estimated233-2.5%
32Crawford County Estimated229+7%
33Fayette County Estimated213+17%
34Jackson County Estimated2060%
34O'Brien County Estimated206+16.4%
36Hamilton County Estimated203+32.7%
36Madison County Estimated203+15.3%
38Allamakee County Estimated201+6.3%
39Jones County Estimated195-2%
40Delaware County Estimated194-3.5%
41Henry County Estimated189+5.6%
42Tama County Estimated187-6.5%
42Winneshiek County Estimated1870%
44Iowa County Estimated186+12%
45Clayton County Estimated185-4.1%
45Poweshiek County Estimated185+0.5%
47Lyon County Estimated176+10%
48Cedar County Estimated1680%
49Butler County Estimated167+28.5%
50Wright County Estimated159+6%
51Harrison County Estimated156+2.6%
52Clay County Estimated154-9.9%
52Kossuth County Estimated154-6.7%
54Davis County Estimated153-5%
55Grundy County Estimated152+24.6%
56Hardin County Estimated148+10.4%
57Dickinson County Estimated147-14.5%
57Mills County Estimated147+8.1%
59Chickasaw County Estimated143+14.4%
60Floyd County Estimated141-15.1%
61Clarke County Estimated135+12.5%
62Cass County Estimated132+2.3%
63Jefferson County Estimated130-14.5%
63Mitchell County Estimated130+2.4%
65Appanoose County Estimated126-3.1%
65Page County Estimated126-9.4%
67Cherokee County Estimated124-5.3%
68Hancock County Estimated1220%
68Humboldt County Estimated122+11.9%
70Franklin County Estimated121-17.1%
71Lucas County Estimated120+11.1%
72Shelby County Estimated118+25.5%
73Louisa County Estimated116+20.8%
74Howard County Estimated114-11.6%
75Sac County Estimated111+3.7%
76Van Buren County Estimated104+8.3%
77Guthrie County Estimated103+22.6%
78Calhoun County Estimated100+31.6%
78Winnebago County Estimated1000%
80Montgomery County Estimated99-5.7%
81Keokuk County Estimated98+10.1%
81Union County Estimated98-17.6%
83Palo Alto County Estimated96-20%
84Emmet County Estimated95+4.4%
85Monona County Estimated89-12.7%
85Wayne County Estimated89+1.1%
87Adair County Estimated87+3.6%
88Greene County Estimated82-1.2%
89Worth County Estimated81+9.5%
90Decatur County Estimated80-5.9%
91Pocahontas County Estimated79+9.7%
92Monroe County Estimated78+5.4%
93Fremont County Estimated69+19%
93Ida County Estimated69-9.2%
95Taylor County Estimated67+6.3%
96Osceola County Estimated65-1.5%
97Audubon County Estimated61+15.1%
98Adams County Estimated45+4.7%
99Ringgold County Estimated39-20.4%

Other periods

About this ranking

Estimated live births to resident mothers from July 1 of the previous year through June 30 of the reported year.

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

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: births, 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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Questions

Which county has the highest births (July to June)?

Polk County, with 6,511 in 2022, according to the U.S. Census Bureau.

Which county has the lowest births (July to June)?

Ringgold County, with 39 in 2022.

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: births, July 1 of the previous year to June 30 of the reported year, nation, states and counties. Retrieved 2026-10-08.

Live births, July to June: other rankings

Counties in Iowa: more rankings