Data / Rankings / Deaths, July to June / Counties in Iowa

Counties in Iowa by deaths (July to June), 2025

Polk County had the highest deaths (July to June) of 99 counties in 2025, at 4,241. Adams County had the lowest, at 46. The median was 193 and the figure for Iowa was 33,521. Source: the U.S. Census Bureau.

Highest4,241Polk County
Lowest46Adams County
Median19399 counties
Iowa33,521History

Top 40 counties, 2025

CSVChart (SVG)

Polk CountyPolk County: 4,241 count4,241Linn CountyLinn County: 2,208 count2,208Scott CountyScott County: 1,739 count1,739Black Hawk CountyBlack Hawk County: 1,415 count1,415Pottawattamie CountyPottawattamie County: 1,079 count1,079Dubuque CountyDubuque County: 1,053 count1,053Woodbury CountyWoodbury County: 1,019 count1,019Johnson CountyJohnson County: 893 count893Dallas CountyDallas County: 648 count648Story CountyStory County: 636 count636Clinton CountyClinton County: 617 count617Des Moines CountyDes Moines County: 544 count544Cerro Gordo CountyCerro Gordo County: 537 count537Warren CountyWarren County: 523 count523Marshall CountyMarshall County: 521 count521Lee CountyLee County: 491 count491Webster CountyWebster County: 488 count488Muscatine CountyMuscatine County: 477 count477Wapello CountyWapello County: 457 count457Marion CountyMarion County: 391 count391Jasper CountyJasper County: 384 count384Boone CountyBoone County: 327 count327Plymouth CountyPlymouth County: 290 count290Washington CountyWashington County: 277 count277Bremer CountyBremer County: 271 count271Sioux CountySioux County: 269 count269Mahaska CountyMahaska County: 261 count261Benton CountyBenton County: 258 count258Fayette CountyFayette County: 257 count257Dickinson CountyDickinson County: 253 count253Henry CountyHenry County: 245 count245Hardin CountyHardin County: 244 count244Buchanan CountyBuchanan County: 243 count243Carroll CountyCarroll County: 239 count239Jackson CountyJackson County: 231 count231Poweshiek CountyPoweshiek County: 222 count222Cass CountyCass County: 220 count220Cherokee CountyCherokee County: 220 count220Jones CountyJones County: 215 count215Clay CountyClay County: 214 count214
count. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2025
count		Change on 2024
1Polk County Estimated4,241+2.2%
2Linn County Estimated2,208+1.5%
3Scott County Estimated1,739+0.5%
4Black Hawk County Estimated1,415+1.4%
5Pottawattamie County Estimated1,079+0.7%
6Dubuque County Estimated1,053+1.3%
7Woodbury County Estimated1,019+1.1%
8Johnson County Estimated893+1.4%
9Dallas County Estimated648+1.7%
10Story County Estimated636+3.4%
11Clinton County Estimated617+2.8%
12Des Moines County Estimated544+1.5%
13Cerro Gordo County Estimated537+2.9%
14Warren County Estimated523+2.3%
15Marshall County Estimated521+1.4%
16Lee County Estimated491+1%
17Webster County Estimated488+3.6%
18Muscatine County Estimated477+2.6%
19Wapello County Estimated457+2.7%
20Marion County Estimated391+2.4%
21Jasper County Estimated384+2.4%
22Boone County Estimated327+3.5%
23Plymouth County Estimated290+3.6%
24Washington County Estimated277+3.7%
25Bremer County Estimated271+2.7%
26Sioux County Estimated269+3.9%
27Mahaska County Estimated261+3.2%
28Benton County Estimated258+2.4%
29Fayette County Estimated257+3.6%
30Dickinson County Estimated253+3.3%
31Henry County Estimated245+5.2%
32Hardin County Estimated244+7%
33Buchanan County Estimated243+5.2%
34Carroll County Estimated239+3%
35Jackson County Estimated231+2.7%
36Poweshiek County Estimated222+3.3%
37Cass County Estimated220+2.8%
37Cherokee County Estimated220+5.8%
39Jones County Estimated215+2.9%
40Clay County Estimated214+3.9%
41Delaware County Estimated210+7.1%
41Page County Estimated210+2.9%
43Clayton County Estimated209+4%
43Floyd County Estimated209+4.5%
45Cedar County Estimated204+3%
46Kossuth County Estimated201+3.1%
47O'Brien County Estimated199+2.6%
48Tama County Estimated196+1%
49Iowa County Estimated194+3.7%
50Butler County Estimated193+4.3%
51Appanoose County Estimated187+4.5%
52Hamilton County Estimated184+2.8%
52Harrison County Estimated184+0.5%
52Winneshiek County Estimated184+2.8%
55Jefferson County Estimated183+1.7%
56Union County Estimated182+5.2%
57Montgomery County Estimated176+3.5%
58Chickasaw County Estimated171+3%
58Wright County Estimated171+2.4%
60Buena Vista County Estimated165+5.1%
61Allamakee County Estimated164+1.9%
62Calhoun County Estimated161+7.3%
62Shelby County Estimated161+1.9%
64Crawford County Estimated159+3.9%
65Winnebago County Estimated157+2.6%
66Madison County Estimated155+3.3%
67Grundy County Estimated152+4.1%
68Franklin County Estimated149+5.7%
69Keokuk County Estimated139+5.3%
69Mills County Estimated139+1.5%
71Palo Alto County Estimated137+3%
72Mitchell County Estimated136+0.7%
73Guthrie County Estimated134+3.9%
74Lyon County Estimated130+3.2%
75Emmet County Estimated128+0.8%
75Greene County Estimated128+2.4%
77Monroe County Estimated126+2.4%
78Clarke County Estimated124+4.2%
79Sac County Estimated123+3.4%
80Hancock County Estimated118+4.4%
81Louisa County Estimated117+3.5%
82Lucas County Estimated112+5.7%
83Humboldt County Estimated109+0.9%
84Monona County Estimated107+2.9%
85Pocahontas County Estimated106+1%
86Howard County Estimated105+2.9%
87Adair County Estimated1030%
87Ida County Estimated1030%
89Decatur County Estimated99+1%
90Davis County Estimated95+2.2%
91Audubon County Estimated93+4.5%
91Van Buren County Estimated930%
91Wayne County Estimated93+3.3%
94Worth County Estimated88+1.1%
95Fremont County Estimated82+2.5%
96Osceola County Estimated81+2.5%
97Taylor County Estimated79+1.3%
98Ringgold County Estimated61-1.6%
99Adams County Estimated46+2.2%

Other periods

About this ranking

Estimated deaths of residents 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 death 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: deaths, 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 deaths (July to June) using official data, and cite the source.
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Questions

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

Polk County, with 4,241 in 2025, according to the U.S. Census Bureau.

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

Adams County, with 46 in 2025.

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

Deaths, July to June: other rankings

Counties in Iowa: more rankings