ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
Adams County4,029113860199
2
Ringgold County5,131132670199
3
Audubon County6,1191871120299
4
Taylor County6,317140600200
5
Wayne County6,403130700200
6
Osceola County6,4625638594
7
Ida County7,089106930199
8
Pocahontas County
7,3101989012288
9
Fremont County7,44112013515255
10
Van Buren County
7,570931060199
11
Worth County7,5981812180399
12
Monroe County7,97012913336262
13
Decatur County8,4571501414291
14
Davis County8,7531741260300
15
Lucas County8,8981801200300
16
Monona County9,2431801163296
17
Clarke County9,2862321680400
18
Greene County9,3362151840399
19
Palo Alto County9,4212131860399
20
Howard County9,5661842150399
21
Calhoun County9,6702002000400
22
Humboldt County
9,8151661330299
23
Emmet County10,3021681320300
24
Sac County10,3501651350300
25
Keokuk County10,51125014010390
26
Franklin County10,6802261684394
27
Montgomery County
10,7401081920300
28
Mitchell County10,7762601355395
29
Winnebago County
10,8661702300400
30
Guthrie County10,9542201800400
31
Hancock County11,3412401520392
32
Louisa County11,3872241688392
33
Lyon County11,581113800193
34
Cherokee County
12,0721812180399
35
Shelby County12,1671682320400
36
Chickasaw County
12,4393602336593
37
Grundy County12,4531862066392
38
Union County12,5342312680499
39
Appanoose County
12,8872732260499
40
Wright County13,3292732260499
41
Cass County13,95630019010490
42
Allamakee County
14,3303042960600
43
O'Brien County14,3981521415293
44
Butler County14,8672503500600
45
Harrison County14,9282262730499
46
Mills County15,0592552440499
47
Kossuth County15,54336021313573
48
Hamilton County15,6733532460599
49
Madison County15,6793202800600
50
Page County15,9321972020399
51
Floyd County16,3034533460799
52
Iowa County16,3553573430700
53
Clay County16,6672963030599
54
Dickinson County
16,6673413580699
55
Jefferson County
16,8432456540899
56
Crawford County17,09622520866433
57
Hardin County17,5344032960699
58
Delaware County17,76444034416784
59
Tama County17,7674764230899
60
Clayton County18,1293924080800
61
Cedar County18,4993544450799
62
Poweshiek County
18,9144754240899
63
Jackson County19,84845041436864
64
Henry County20,1453503500700
65
Buena Vista County
20,26029129117582
66
Jones County20,6384194800899
67
Carroll County20,8165042960800
68
Fayette County20,8805254680993
69
Buchanan County20,95852547501000
70
Winneshiek County
21,05648461601100
71
Washington County
21,7044844150899
72
Mahaska County22,3813933060699
73
Bremer County24,276640544161184
74
Plymouth County24,9863873120699
75
Benton County26,07667252801200
76
Boone County26,30658571501300
77
Marion County33,309650624261274
78
Sioux County33,7041922020394
79
Wapello County35,62581766771484
80
Lee County35,86292977001699
81
Jasper County36,842927810631737
82
Webster County38,013866720131586
83
Des Moines County
40,325933106601999
84
Marshall County40,64883996001799
85
Muscatine County
42,74582897201800
86
Cerro Gordo County
44,1511091110802199
87
Warren County46,2251217953292170
88
Clinton County49,1161165123402399
89
Dallas County66,13516671208242875
90
Story County89,5421862273704599
91
Pottawattamie County
93,1581519157303092
92
Dubuque County93,65325042276184780
93
Woodbury County
102,17216651920153585
94
Johnson County130,88237005473269173
95
Black Hawk County
131,09032203647166867
96
Scott County165,22440254144298169
97
Linn County211,226573363313512064
98
Polk County430,64012,12210,52615222,648
99
Totals3,038,7736964969236746138885
100
CountyPopulationClintonSandersO'MalleyTotal by county