Map of Population Change for Counties in Iowa - 2010 to 2020

Iowa Population Change Map

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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%