Iowa Counties

County Name	Population
Adair County	7,152
Adams County	3,602
Allamakee County	13,687
Appanoose County	12,426
Audubon County	5,496
Benton County	25,645
Black Hawk County	131,228
Boone County	26,234
Bremer County	25,062
Buchanan County	21,175
Buena Vista County	19,620
Butler County	14,439
Calhoun County	9,668
Carroll County	20,165
Cass County	12,836
Cedar County	18,627
Cerro Gordo County	42,450
Cherokee County	11,235
Chickasaw County	11,933
Clarke County	9,395
Clay County	16,016
Clayton County	17,549
Clinton County	46,429
Crawford County	16,820
Dallas County	93,453
Davis County	9,000
Decatur County	7,870
Delaware County	17,011
Des Moines County	38,967
Dickinson County	17,258
Dubuque County	97,311
Emmet County	9,208
Fayette County	19,650
Floyd County	15,642
Franklin County	10,070
Fremont County	6,960
Greene County	8,888
Grundy County	12,232
Guthrie County	10,689
Hamilton County	14,773
Hancock County	10,630
Hardin County	16,846
Harrison County	14,049
Henry County	19,954
Howard County	9,158
Humboldt County	9,558
Ida County	6,860
Iowa County	16,184
Jackson County	19,439
Jasper County	37,185
Jefferson County	18,295
Johnson County	151,140
Jones County	20,681
Keokuk County	10,246
Kossuth County	14,813
Lee County	33,657
Linn County	226,706
Louisa County	11,035
Lucas County	8,600
Lyon County	11,755
Madison County	16,338
Mahaska County	22,095
Marion County	33,253
Marshall County	39,369
Mills County	15,109
Mitchell County	10,586
Monona County	8,615
Monroe County	7,707
Montgomery County	9,917
Muscatine County	42,664
O'Brien County	13,753
Osceola County	5,958
Page County	15,107
Palo Alto County	8,886
Plymouth County	25,177
Pocahontas County	6,619
Polk County	490,161
Pottawattamie County	93,206
Poweshiek County	18,504
Ringgold County	4,894
Sac County	9,721
Scott County	172,943
Shelby County	11,454
Sioux County	34,855
Story County	97,117
Tama County	16,854
Taylor County	6,121
Union County	12,241
Van Buren County	7,044
Wapello County	34,969
Warren County	51,466
Washington County	21,965
Wayne County	6,441
Webster County	35,904
Winnebago County	10,354
Winneshiek County	19,991
Woodbury County	103,107
Worth County	7,381
Wright County	12,562