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About the map

Iowa Map Extent

This Iowa county map displays its 99 counties. Despite having a relatively small population, Iowa has the ninth most counties out of all other states in America.

Polk County is the most populated in Iowa holding the state capital of Des Moines. Next, Linn, Scott, and Johnson counties have populations all over 150,000 people.

In terms of size, Kossuth County stands out occupying an area of 974.2 square miles. But the smallest county is Osceola County in northwest Iowa. Counties in Iowa have a very rectangular shape boundary and appearance.

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Iowa county list

County Name Population (2020 est) County Map Area (sq mi) Locator Map FIPS Code
Adair County 7,059
Adair County Map Iowa
Adair County
570.3
Adair County Map Iowa Locator
Adair County Map
19001
Adams County 3,588
Adams County Map Iowa
Adams County
425.5
Adams County Map Iowa Locator
Adams County Map
19003
Allamakee County 13,642
Allamakee County Map Iowa
Allamakee County
658.8
Allamakee County Map Iowa Locator
Allamakee County Map
19005
Appanoose County 12,430
Appanoose County Map Iowa
Appanoose County
516.2
Appanoose County Map Iowa Locator
Appanoose County Map
19007
Audubon County 5,481
Audubon County Map Iowa
Audubon County
443.4
Audubon County Map Iowa Locator
Audubon County Map
19009
Benton County 25,414
Benton County Map Iowa
Benton County
718.5
Benton County Map Iowa Locator
Benton County Map
19011
Black Hawk County 130,786
Black Hawk County Map Iowa
Black Hawk County
572.7
Black Hawk County Map Iowa Locator
Black Hawk County Map
19013
Boone County 26,277
Boone County Map Iowa
Boone County
573.6
Boone County Map Iowa Locator
Boone County Map
19015
Bremer County 25,311
Bremer County Map Iowa
Bremer County
439.6
Bremer County Map Iowa Locator
Bremer County Map
19017
Buchanan County 21,287
Buchanan County Map Iowa
Buchanan County
573.1
Buchanan County Map Iowa Locator
Buchanan County Map
19019
Buena Vista County 19,772
Buena Vista County Map Iowa
Buena Vista County
580.3
Buena Vista County Map Iowa Locator
Buena Vista County Map
19021
Butler County 14,333
Butler County Map Iowa
Butler County
581.5
Butler County Map Iowa Locator
Butler County Map
19023
Calhoun County 9,473
Calhoun County Map Iowa
Calhoun County
572.1
Calhoun County Map Iowa Locator
Calhoun County Map
19025
Carroll County 19,914
Carroll County Map Iowa
Carroll County
570.1
Carroll County Map Iowa Locator
Carroll County Map
19027
Cass County 12,817
Cass County Map Iowa
Cass County
564.9
Cass County Map Iowa Locator
Cass County Map
19029
Cedar County 18,485
Cedar County Map Iowa
Cedar County
581.9
Cedar County Map Iowa Locator
Cedar County Map
19031
Cerro Gordo County 42,103
Cerro Gordo County Map Iowa
Cerro Gordo County
575.1
Cerro Gordo County Map Iowa Locator
Cerro Gordo County Map
19033
Cherokee County 11,190
Cherokee County Map Iowa
Cherokee County
577.1
Cherokee County Map Iowa Locator
Cherokee County Map
19035
Chickasaw County 11,834
Chickasaw County Map Iowa
Chickasaw County
505.7
Chickasaw County Map Iowa Locator
Chickasaw County Map
19037
Clarke County 9,353
Clarke County Map Iowa
Clarke County
431.7
Clarke County Map Iowa Locator
Clarke County Map
19039
Clay County 15,976
Clay County Map Iowa
Clay County
572.6
Clay County Map Iowa Locator
Clay County Map
19041
Clayton County 17,321
Clayton County Map Iowa
Clayton County
792.8
Clayton County Map Iowa Locator
Clayton County Map
19043
Clinton County 46,392
Clinton County Map Iowa
Clinton County
709.7
Clinton County Map Iowa Locator
Clinton County Map
19045
Crawford County 16,834
Crawford County Map Iowa
Crawford County
715
Crawford County Map Iowa Locator
Crawford County Map
19047
Dallas County 96,963
Dallas County Map Iowa
Dallas County
591.7
Dallas County Map Iowa Locator
Dallas County Map
19049
Davis County 9,051
Davis County Map Iowa
Davis County
504.9
Davis County Map Iowa Locator
Davis County Map
19051
Decatur County 7,769
Decatur County Map Iowa
Decatur County
533.5
Decatur County Map Iowa Locator
Decatur County Map
19053
Delaware County 16,937
Delaware County Map Iowa
Delaware County
578.9
Delaware County Map Iowa Locator
Delaware County Map
19055
Des Moines County 38,708
Des Moines County Map Iowa
Des Moines County
429.6
Des Moines County Map Iowa Locator
Des Moines County Map
19057
Dickinson County 17,549
Dickinson County Map Iowa
Dickinson County
403.7
Dickinson County Map Iowa Locator
Dickinson County Map
19059
Dubuque County 97,590
Dubuque County Map Iowa
Dubuque County
616.6
Dubuque County Map Iowa Locator
Dubuque County Map
19061
Emmet County 9,095
Emmet County Map Iowa
Emmet County
402.3
Emmet County Map Iowa Locator
Emmet County Map
19063
Fayette County 19,258
Fayette County Map Iowa
Fayette County
731.3
Fayette County Map Iowa Locator
Fayette County Map
19065
Floyd County 15,480
Floyd County Map Iowa
Floyd County
501.4
Floyd County Map Iowa Locator
Floyd County Map
19067
Franklin County 9,971
Franklin County Map Iowa
Franklin County
582.6
Franklin County Map Iowa Locator
Franklin County Map
19069
Fremont County 6,729
Fremont County Map Iowa
Fremont County
516.6
Fremont County Map Iowa Locator
Fremont County Map
19071
Greene County 8,795
Greene County Map Iowa
Greene County
571.3
Greene County Map Iowa Locator
Greene County Map
19073
Grundy County 12,217
Grundy County Map Iowa
Grundy County
501.9
Grundy County Map Iowa Locator
Grundy County Map
19075
Guthrie County 10,737
Guthrie County Map Iowa
Guthrie County
593.1
Guthrie County Map Iowa Locator
Guthrie County Map
19077
Hamilton County 14,716
Hamilton County Map Iowa
Hamilton County
577.3
Hamilton County Map Iowa Locator
Hamilton County Map
19079
Hancock County 10,507
Hancock County Map Iowa
Hancock County
573.1
Hancock County Map Iowa Locator
Hancock County Map
19081
Hardin County 16,575
Hardin County Map Iowa
Hardin County
570.1
Hardin County Map Iowa Locator
Hardin County Map
19083
Harrison County 13,928
Harrison County Map Iowa
Harrison County
700.9
Harrison County Map Iowa Locator
Harrison County Map
19085
Henry County 19,697
Henry County Map Iowa
Henry County
436.6
Henry County Map Iowa Locator
Henry County Map
19087
Howard County 9,176
Howard County Map Iowa
Howard County
473.6
Howard County Map Iowa Locator
Howard County Map
19089
Humboldt County 9,473
Humboldt County Map Iowa
Humboldt County
435.7
Humboldt County Map Iowa Locator
Humboldt County Map
19091
Ida County 6,833
Ida County Map Iowa
Ida County
432
Ida County Map Iowa Locator
Ida County Map
19093
Iowa County 16,138
Iowa County Map Iowa
Iowa County
587.5
Iowa County Map Iowa Locator
Iowa County Map
19095
Jackson County 19,205
Jackson County Map Iowa
Jackson County
649.6
Jackson County Map Iowa Locator
Jackson County Map
19097
Jasper County 37,148
Jasper County Map Iowa
Jasper County
732.9
Jasper County Map Iowa Locator
Jasper County Map
19099
Jefferson County 18,347
Jefferson County Map Iowa
Jefferson County
436.9
Jefferson County Map Iowa Locator
Jefferson County Map
19101
Johnson County 153,740
Johnson County Map Iowa
Johnson County
623.3
Johnson County Map Iowa Locator
Johnson County Map
19103
Jones County 20,617
Jones County Map Iowa
Jones County
577
Jones County Map Iowa Locator
Jones County Map
19105
Keokuk County 10,085
Keokuk County Map Iowa
Keokuk County
579.9
Keokuk County Map Iowa Locator
Keokuk County Map
19107
Kossuth County 14,680
Kossuth County Map Iowa
Kossuth County
974.2
Kossuth County Map Iowa Locator
Kossuth County Map
19109
Lee County 33,480
Lee County Map Iowa
Lee County
539.8
Lee County Map Iowa Locator
Lee County Map
19111
Linn County 227,854
Linn County Map Iowa
Linn County
724.5
Linn County Map Iowa Locator
Linn County Map
19113
Louisa County 11,011
Louisa County Map Iowa
Louisa County
417.3
Louisa County Map Iowa Locator
Louisa County Map
19115
Lucas County 8,518
Lucas County Map Iowa
Lucas County
434.4
Lucas County Map Iowa Locator
Lucas County Map
19117
Lyon County 11,756
Lyon County Map Iowa
Lyon County
586.6
Lyon County Map Iowa Locator
Lyon County Map
19119
Madison County 16,521
Madison County Map Iowa
Madison County
562.2
Madison County Map Iowa Locator
Madison County Map
19121
Mahaska County 22,370
Mahaska County Map Iowa
Mahaska County
573.5
Mahaska County Map Iowa Locator
Mahaska County Map
19123
Marion County 33,168
Marion County Map Iowa
Marion County
570.5
Marion County Map Iowa Locator
Marion County Map
19125
Marshall County 39,495
Marshall County Map Iowa
Marshall County
573
Marshall County Map Iowa Locator
Marshall County Map
19127
Mills County 14,766
Mills County Map Iowa
Mills County
440.7
Mills County Map Iowa Locator
Mills County Map
19129
Mitchell County 10,647
Mitchell County Map Iowa
Mitchell County
469.5
Mitchell County Map Iowa Locator
Mitchell County Map
19131
Monona County 8,598
Monona County Map Iowa
Monona County
698.9
Monona County Map Iowa Locator
Monona County Map
19133
Monroe County 7,770
Monroe County Map Iowa
Monroe County
434.2
Monroe County Map Iowa Locator
Monroe County Map
19135
Montgomery County 9,935
Montgomery County Map Iowa
Montgomery County
425
Montgomery County Map Iowa Locator
Montgomery County Map
19137
Muscatine County 42,394
Muscatine County Map Iowa
Muscatine County
449.2
Muscatine County Map Iowa Locator
Muscatine County Map
19139
O’Brien County 13,679
OBrien County Map Iowa
OBrien County
573.2
OBrien County Map Iowa Locator
OBrien County Map
19141
Osceola County 5,987
Osceola County Map Iowa
Osceola County
399.7
Osceola County Map Iowa Locator
Osceola County Map
19143
Page County 15,073
Page County Map Iowa
Page County
535.5
Page County Map Iowa Locator
Page County Map
19145
Palo Alto County 8,845
Palo Alto County Map Iowa
Palo Alto County
569.4
Palo Alto County Map Iowa Locator
Palo Alto County Map
19147
Plymouth County 25,219
Plymouth County Map Iowa
Plymouth County
861.7
Plymouth County Map Iowa Locator
Plymouth County Map
19149
Pocahontas County 6,607
Pocahontas County Map Iowa
Pocahontas County
578.7
Pocahontas County Map Iowa Locator
Pocahontas County Map
19151
Polk County 494,281
Polk County Map Iowa
Polk County
591.5
Polk County Map Iowa Locator
Polk County Map
19153
Pottawattamie County 93,328
Pottawattamie County Map Iowa
Pottawattamie County
959.1
Pottawattamie County Map Iowa Locator
Pottawattamie County Map
19155
Poweshiek County 18,381
Poweshiek County Map Iowa
Poweshiek County
586.1
Poweshiek County Map Iowa Locator
Poweshiek County Map
19157
Ringgold County 4,801
Ringgold County Map Iowa
Ringgold County
538.9
Ringgold County Map Iowa Locator
Ringgold County Map
19159
Sac County 9,603
Sac County Map Iowa
Sac County
578.3
Sac County Map Iowa Locator
Sac County Map
19161
Scott County 173,216
Scott County Map Iowa
Scott County
468.6
Scott County Map Iowa Locator
Scott County Map
19163
Shelby County 11,430
Shelby County Map Iowa
Shelby County
591.4
Shelby County Map Iowa Locator
Shelby County Map
19165
Sioux County 35,043
Sioux County Map Iowa
Sioux County
768.6
Sioux County Map Iowa Locator
Sioux County Map
19167
Story County 98,237
Story County Map Iowa
Story County
573.6
Story County Map Iowa Locator
Story County Map
19169
Tama County 16,801
Tama County Map Iowa
Tama County
722.3
Tama County Map Iowa Locator
Tama County Map
19171
Taylor County 6,092
Taylor County Map Iowa
Taylor County
534.7
Taylor County Map Iowa Locator
Taylor County Map
19173
Union County 12,157
Union County Map Iowa
Union County
425.8
Union County Map Iowa Locator
Union County Map
19175
Van Buren County 7,069
Van Buren County Map Iowa
Van Buren County
490.5
Van Buren County Map Iowa Locator
Van Buren County Map
19177
Wapello County 34,985
Wapello County Map Iowa
Wapello County
436
Wapello County Map Iowa Locator
Wapello County Map
19179
Warren County 52,265
Warren County Map Iowa
Warren County
573.3
Warren County Map Iowa Locator
Warren County Map
19181
Washington County 21,992
Washington County Map Iowa
Washington County
570.8
Washington County Map Iowa Locator
Washington County Map
19183
Wayne County 6,415
Wayne County Map Iowa
Wayne County
527.1
Wayne County Map Iowa Locator
Wayne County Map
19185
Webster County 35,934
Webster County Map Iowa
Webster County
718.4
Webster County Map Iowa Locator
Webster County Map
19187
Winnebago County 10,277
Winnebago County Map Iowa
Winnebago County
401.6
Winnebago County Map Iowa Locator
Winnebago County Map
19189
Winneshiek County 19,862
Winneshiek County Map Iowa
Winneshiek County
690.1
Winneshiek County Map Iowa Locator
Winneshiek County Map
19191
Woodbury County 103,138
Woodbury County Map Iowa
Woodbury County
878.1
Woodbury County Map Iowa Locator
Woodbury County Map
19193
Worth County 7,359
Worth County Map Iowa
Worth County
402
Worth County Map Iowa Locator
Worth County Map
19195
Wright County 12,416
Wright County Map Iowa
Wright County
582.3
Wright County Map Iowa Locator
Wright County Map
19197

References

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