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

Counties in Iowa by deaths (July to June)

Polk County had the highest deaths (July to June) of 99 counties in 2021, at 4,289. Adams County had the lowest, at 53. The median was 205 and the figure for Iowa was 35,466. Source: the U.S. Census Bureau.

Highest4,289Polk County
Lowest53Adams County
Median20599 counties
Iowa35,466History

Top 40 counties, 2021

CSVChart (SVG)

Polk CountyPolk County: 4,289 count4,289Linn CountyLinn County: 2,208 count2,208Scott CountyScott County: 1,932 count1,932Black Hawk CountyBlack Hawk County: 1,526 count1,526Woodbury CountyWoodbury County: 1,219 count1,219Pottawattamie CountyPottawattamie County: 1,192 count1,192Dubuque CountyDubuque County: 1,033 count1,033Johnson CountyJohnson County: 890 count890Clinton CountyClinton County: 625 count625Dallas CountyDallas County: 614 count614Cerro Gordo CountyCerro Gordo County: 604 count604Story CountyStory County: 603 count603Marshall CountyMarshall County: 546 count546Warren CountyWarren County: 543 count543Webster CountyWebster County: 535 count535Des Moines CountyDes Moines County: 526 count526Muscatine CountyMuscatine County: 506 count506Lee CountyLee County: 480 count480Wapello CountyWapello County: 471 count471Jasper CountyJasper County: 449 count449Marion CountyMarion County: 391 count391Boone CountyBoone County: 345 count345Sioux CountySioux County: 313 count313Benton CountyBenton County: 293 count293Bremer CountyBremer County: 293 count293Plymouth CountyPlymouth County: 290 count290Fayette CountyFayette County: 288 count288Carroll CountyCarroll County: 285 count285Washington CountyWashington County: 284 count284Henry CountyHenry County: 281 count281Jackson CountyJackson County: 280 count280Hardin CountyHardin County: 277 count277Mahaska CountyMahaska County: 271 count271Jones CountyJones County: 258 count258Clayton CountyClayton County: 244 count244O'Brien CountyO'Brien County: 237 count237Dickinson CountyDickinson County: 236 count236Harrison CountyHarrison County: 236 count236Kossuth CountyKossuth County: 232 count232Buchanan CountyBuchanan County: 230 count230
count. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2021
count
1Polk County Estimated4,289
2Linn County Estimated2,208
3Scott County Estimated1,932
4Black Hawk County Estimated1,526
5Woodbury County Estimated1,219
6Pottawattamie County Estimated1,192
7Dubuque County Estimated1,033
8Johnson County Estimated890
9Clinton County Estimated625
10Dallas County Estimated614
11Cerro Gordo County Estimated604
12Story County Estimated603
13Marshall County Estimated546
14Warren County Estimated543
15Webster County Estimated535
16Des Moines County Estimated526
17Muscatine County Estimated506
18Lee County Estimated480
19Wapello County Estimated471
20Jasper County Estimated449
21Marion County Estimated391
22Boone County Estimated345
23Sioux County Estimated313
24Benton County Estimated293
24Bremer County Estimated293
26Plymouth County Estimated290
27Fayette County Estimated288
28Carroll County Estimated285
29Washington County Estimated284
30Henry County Estimated281
31Jackson County Estimated280
32Hardin County Estimated277
33Mahaska County Estimated271
34Jones County Estimated258
35Clayton County Estimated244
36O'Brien County Estimated237
37Dickinson County Estimated236
37Harrison County Estimated236
39Kossuth County Estimated232
40Buchanan County Estimated230
41Poweshiek County Estimated228
42Floyd County Estimated222
43Tama County Estimated221
44Appanoose County Estimated216
45Cass County Estimated215
46Cedar County Estimated213
47Iowa County Estimated212
48Page County Estimated208
49Winneshiek County Estimated207
50Hamilton County Estimated205
51Allamakee County Estimated203
52Jefferson County Estimated200
53Delaware County Estimated199
54Butler County Estimated198
55Clay County Estimated194
55Montgomery County Estimated194
57Crawford County Estimated191
58Buena Vista County Estimated188
59Monona County Estimated186
59Wright County Estimated186
61Union County Estimated179
62Cherokee County Estimated176
63Franklin County Estimated169
64Grundy County Estimated165
65Madison County Estimated162
66Mitchell County Estimated161
67Chickasaw County Estimated160
67Shelby County Estimated160
69Keokuk County Estimated159
70Clarke County Estimated156
71Mills County Estimated150
71Winnebago County Estimated150
73Hancock County Estimated146
74Emmet County Estimated144
75Sac County Estimated140
76Humboldt County Estimated139
77Guthrie County Estimated136
78Palo Alto County Estimated135
79Calhoun County Estimated134
80Ida County Estimated133
81Louisa County Estimated131
82Lyon County Estimated128
83Adair County Estimated127
83Howard County Estimated127
85Lucas County Estimated120
86Pocahontas County Estimated119
87Greene County Estimated118
88Monroe County Estimated117
89Davis County Estimated102
90Van Buren County Estimated100
91Ringgold County Estimated96
92Decatur County Estimated95
93Wayne County Estimated92
94Audubon County Estimated91
94Taylor County Estimated91
96Osceola County Estimated90
96Worth County Estimated90
98Fremont County Estimated84
99Adams County Estimated53

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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Questions

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

Polk County, with 4,289 in 2021, according to the U.S. Census Bureau.

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

Adams County, with 53 in 2021.

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