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Polk County, Iowa Facts

Facts
State Iowa
Land area 573.8 square miles
Population Density 750.5 persons per square mile.
Population
Population (2013) 451,677
Population change 4.9%
Under 5 years of age 7.2%
Under 18 25.3%
65 and over 11.4%
Females 50.8%
White 87
Hispanic or Latino of any race 8
Asian 3.9%
Two or more races 2.2%
Black or African American 6.5%
Native American 0.4%
Pacific Islander 0.1%
Had graduated from high school 92%
Had a bachelor’s degree or higher 34.9%
Veterans 26,762
Households and Housing
Households 173,164
Persons per household 2.5
Living in the same house for one year or more 82.2%
Median household income $59,018
The per capita income $30,442
Live below the poverty line. 11.8%
housing units 188,671
Multi-unit structures 24%
The median value of owner-occupied housing $154,400
Residents owning their homes. 69.2%
Business Facts
Total number of firms 37,950
Women-owned firms 28%
Asian-owned firms 2.1%
Hispanic-owned firms 1.8%
Black-owned firms 1.9%
Native American-owned firms 0.3%
Pacific Islander-owned firms 0.1%
Retail sales $6,714,418
Retail sales per capita $16,130
Manufacturers shipments $7,519,907
Merchant wholesaler sales $6,697,167