Iowa Total Population in 2010 by County

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About this application: This application provides summary profiles showing frequently requested data items from various US Census Bureau programs. Profiles are available for the nation, states, and counties.
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Population, Census, April 1, 2010 - (Number)
County Value
Adair 7,682
Adams 4,029
Allamakee 14,330
Appanoose 12,887
Audubon 6,119
Benton 26,076
Black Hawk 131,090
Boone 26,306
Bremer 24,276
Buchanan 20,958
Buena Vista 20,260
Butler 14,867
Calhoun 9,670
Carroll 20,816
Cass 13,956
Cedar 18,499
Cerro Gordo 44,151
Cherokee 12,072
Chickasaw 12,439
Clarke 9,286
Clay 16,667
Clayton 18,129
Clinton 49,116
Crawford 17,096
Dallas 66,135
Davis 8,753
Decatur 8,457
Delaware 17,764
Des Moines 40,325
Dickinson 16,667
Dubuque 93,653
Emmet 10,302
Fayette 20,880
Floyd 16,303
Franklin 10,680
Fremont 7,441
Greene 9,336
Grundy 12,453
Guthrie 10,954
Hamilton 15,673
Hancock 11,341
Hardin 17,534
Harrison 14,928
Henry 20,145
Howard 9,566
Humboldt 9,815
Ida 7,089
Iowa 16,355
Jackson 19,848
Jasper 36,842
Jefferson 16,843
Johnson 130,882
Jones 20,638
Keokuk 10,511
Kossuth 15,543
Lee 35,862
Linn 211,226
Louisa 11,387
Lucas 8,898
Lyon 11,581
Madison 15,679
Mahaska 22,381
Marion 33,309
Marshall 40,648
Mills 15,059
Mitchell 10,776
Monona 9,243
Monroe 7,970
Montgomery 10,740
Muscatine 42,745
Osceola 6,462
Page 15,932
Palo Alto 9,421
Plymouth 24,986
Pocahontas 7,310
Polk 430,640
Pottawattamie 93,158
Poweshiek 18,914
Ringgold 5,131
Sac 10,350
Scott 165,224
Shelby 12,167
Sioux 33,704
Story 89,542
Tama 17,767
Taylor 6,317
Union 12,534
Van Buren 7,570
Wapello 35,625
Warren 46,225
Washington 21,704
Wayne 6,403
Webster 38,013
Winnebago 10,866
Winneshiek 21,056
Woodbury 102,172
Worth 7,598
Wright 13,229

Value for Iowa (Number): 3,046,355

Data item: Population, Census, April 1, 2010

Source: U.S. Census Bureau, 2010 Census of Population and Housing, updated every 10 years. Decennial Census Datasets

Definitions:

In Census 2010, people were counted at their "usual residence," a principle followed in each census since 1790. Usual residence has been defined as the place where the person lives and sleeps most of the time. This place is not necessarily the same as the person's voting residence or legal residence.

Noncitizens who are living in the United States are included, regardless of their immigration status.

Persons temporarily away from their usual residence, such as on vacation or on a business trip on Census Day, were counted at their usual residence. People who live at more than one residence during the week, month, or year were counted at the place where they live most of the year. People without a usual residence, however, were counted where they were staying on Census Day.

Scope and Methodology:

Place of residence was derived from answers to questions that were asked of all people in Census 2010.

The "April 1, 2010 estimates base" reflects corrections to the Census 2010 figures, where necessary, or adjustments to account for any boundary changes subsequent to the census.

For more information please read the 2010 Census Redistricting Data (Public Law 94-171) Summary File Technical documentation.