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Iowa Population Change Map
Map of Population Change for Counties in Iowa - 2010 to 2020
Iowa Population Change Map
< -15%
-15% to -5%
-5% to 0%
0% to 5%
5% to 15%
> 15%
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List of Counties in Iowa With Population Percentage Change
Map Key
Name
Population Change
Adair County
-2.42%
Adams County
-8.07%
Allamakee County
-1.88%
Appanoose County
-4.42%
Audubon County
-7.27%
Benton County
-1.92%
Black Hawk County
0.04%
Boone County
1.55%
Bremer County
2.93%
Buchanan County
-1.88%
Buena Vista County
2.78%
Butler County
-3.59%
Calhoun County
2.66%
Carroll County
-0.27%
Cass County
-5.94%
Cedar County
0.03%
Cerro Gordo County
-2.32%
Cherokee County
-3.43%
Chickasaw County
-3.43%
Clarke County
4.98%
Clay County
-1.7%
Clayton County
-5.99%
Clinton County
-5.41%
Crawford County
-3.34%
Dallas County
50.72%
Davis County
4.08%
Decatur County
-9.6%
Delaware County
-1.55%
Des Moines County
-3.51%
Dickinson County
6.22%
Dubuque County
5.99%
Emmet County
-8.87%
Fayette County
-6.57%
Floyd County
-4.15%
Franklin County
-6.19%
Fremont County
-11.24%
Greene County
-6.05%
Grundy County
-1%
Guthrie County
-3.02%
Hamilton County
-4.05%
Hancock County
-4.81%
Hardin County
-3.74%
Harrison County
-2.32%
Henry County
1.67%
Howard County
-1.01%
Humboldt County
-2.22%
Ida County
-1.18%
Iowa County
1.88%
Jackson County
-1.83%
Jasper County
2.64%
Jefferson County
-7.01%
Johnson County
16.79%
Jones County
0.04%
Keokuk County
-4.55%
Kossuth County
-4.6%
Lee County
-6.43%
Linn County
9.03%
Louisa County
-4.83%
Lucas County
-2.97%
Lyon County
3.05%
Madison County
5.54%
Mahaska County
-0.85%
Marion County
0.32%
Marshall County
-1.34%
Mills County
-3.82%
Mitchell County
-1.96%
Monona County
-5.32%
Monroe County
-4.93%
Montgomery County
-3.82%
Muscatine County
1.15%
Obrien County
-1.5%
Osceola County
-4.18%
Page County
-4.53%
Palo Alto County
-4.51%
Plymouth County
2.85%
Pocahontas County
-3.17%
Polk County
14.34%
Pottawattamie County
0.55%
Poweshiek County
-1.33%
Ringgold County
-9.12%
Sac County
-5.18%
Scott County
5.72%
Shelby County
-3.46%
Sioux County
6.43%
Story County
10.05%
Tama County
-3.56%
Taylor County
-6.66%
Union County
-3.16%
Van Buren County
-4.85%
Wapello County
-0.53%
Warren County
13.37%
Washington County
3.97%
Wayne County
1.47%
Webster County
-2.67%
Winnebago County
-1.72%
Winneshiek County
-4.68%
Woodbury County
3.69%
Worth County
-2.04%
Wright County
-2.16%
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