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Counties
Counties in Iowa
99 counties · Population, income, elections, and more
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Population
Income
Name
99 counties
County
Population
Median Income
Polk County
497,441
$81,621
Linn County
229,463
$76,421
Scott County
174,302
$76,363
Johnson County
154,881
$74,721
Black Hawk County
130,693
$64,581
Woodbury County
105,760
$70,147
Dallas County
104,136
$102,349
Dubuque County
98,948
$75,919
Story County
98,592
$69,006
Pottawattamie County
93,407
$71,446
Warren County
53,484
$92,990
Clinton County
46,383
$65,177
Cerro Gordo County
42,785
$65,537
Muscatine County
42,735
$69,512
Marshall County
39,971
$72,785
Des Moines County
38,597
$60,662
Jasper County
37,864
$70,128
Webster County
36,848
$68,054
Sioux County
35,984
$84,736
Wapello County
35,265
$60,034
Marion County
33,551
$78,059
Lee County
33,175
$59,803
Boone County
26,669
$79,741
Plymouth County
25,699
$81,600
Benton County
25,698
$84,742
Bremer County
25,118
$83,343
Washington County
22,539
$71,339
Mahaska County
22,045
$69,019
Jones County
20,799
$73,071
Buena Vista County
20,684
$66,564
Carroll County
20,677
$68,528
Buchanan County
20,645
$78,430
Henry County
20,228
$64,604
Winneshiek County
19,972
$75,652
Jackson County
19,429
$71,605
Fayette County
19,393
$58,764
Poweshiek County
18,582
$64,837
Cedar County
18,427
$79,080
Dickinson County
17,844
$74,570
Delaware County
17,549
$76,205
Clayton County
17,069
$62,326
Tama County
16,982
$67,955
Madison County
16,760
$89,542
Hardin County
16,729
$64,906
Iowa County
16,547
$72,185
Clay County
16,446
$64,082
Crawford County
16,289
$65,039
Jefferson County
15,676
$56,824
Floyd County
15,502
$64,500
Page County
15,168
$57,752
Hamilton County
14,893
$71,750
Harrison County
14,645
$77,027
Kossuth County
14,610
$65,656
Mills County
14,563
$87,810
Butler County
14,301
$69,651
O'Brien County
14,103
$68,216
Allamakee County
14,038
$66,000
Cass County
13,115
$61,657
Wright County
12,817
$64,033
Grundy County
12,352
$83,617
Appanoose County
12,242
$51,146
Lyon County
12,087
$72,881
Union County
12,038
$56,813
Chickasaw County
11,868
$73,421
Shelby County
11,757
$67,690
Cherokee County
11,587
$64,478
Hancock County
10,718
$70,212
Louisa County
10,710
$80,223
Winnebago County
10,648
$63,719
Guthrie County
10,646
$79,981
Mitchell County
10,548
$68,704
Montgomery County
10,254
$63,190
Franklin County
9,977
$63,648
Keokuk County
9,964
$60,856
Calhoun County
9,858
$66,875
Sac County
9,759
$70,991
Clarke County
9,690
$66,821
Humboldt County
9,573
$66,994
Howard County
9,459
$67,336
Emmet County
9,316
$65,181
Davis County
9,127
$79,505
Palo Alto County
8,902
$68,963
Greene County
8,722
$59,159
Lucas County
8,685
$67,921
Monona County
8,619
$62,944
Decatur County
7,669
$57,146
Monroe County
7,546
$72,518
Adair County
7,471
$66,176
Worth County
7,380
$76,875
Van Buren County
7,236
$60,183
Pocahontas County
7,040
$63,423
Ida County
6,944
$62,841
Fremont County
6,570
$73,750
Wayne County
6,518
$59,118
Osceola County
6,114
$69,138
Taylor County
5,901
$67,279
Audubon County
5,622
$54,152
Ringgold County
4,664
$69,821
Adams County
3,641
$68,828