Black Hawk County, Iowa facts for kids
Quick facts for kids
Black Hawk County
Black Hawk County Courthouse in Waterloo
Location within the U.S. state of Iowa
Iowa's location within the U.S.
|Named for||Black Hawk|
|• Total||573 sq mi (1,480 km2)|
|• Land||566 sq mi (1,470 km2)|
|• Water||6.9 sq mi (18 km2) 1.2%%|
|• Density||232/sq mi (90/km2)|
|Time zone||UTC−6 (Central)|
|• Summer (DST)||UTC−5 (CDT)|
Black Hawk County is a county in the northeastern part of U.S. state of Iowa. As of the 2010 census, the population was 131,090, making it Iowa's fourth-most populous county. The county seat is Waterloo.
Black Hawk County is part of the Waterloo-Cedar Falls, IA Metropolitan Statistical Area.
According to the U.S. Census Bureau, the county has an area of 573 square miles (1,480 km2), of which 566 square miles (1,470 km2) is land and 6.9 square miles (18 km2) (1.2%) is water.
- Bremer County (north)
- Buchanan County (east)
- Benton County (southeast)
- Tama County (southwest)
- Grundy County (west)
- Butler County (northwest)
- Fayette County (northeast)
|U.S. Decennial Census
The 2010 census recorded a population of 131,090 in the county, with a population density of 231.20/sq mi (89.27/km2). There were 55,887 housing units, of which 52,470 were occupied.
As of the census of 2000, there were 128,012 people, 49,683 households, and 31,946 families residing in the county. The population density was 226 people per square mile (87/km²). There were 51,759 housing units at an average density of 91 per square mile (35/km²). The racial makeup of the county was 88.42% White, 7.95% Black or African American, 0.18% Native American, 0.98% Asian, 0.04% Pacific Islander, 0.93% from other races, and 1.49% from two or more races. 1.84% of the population were Hispanic or Latino of any race.
There were 49,683 households out of which 29.50% had children under the age of 18 living with them, 50.20% were married couples living together, 10.80% had a female householder with no husband present, and 35.70% were non-families. 27.10% of all households were made up of individuals and 10.90% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.97.
Age spread: 23.10% under the age of 18, 15.70% from 18 to 24, 25.20% from 25 to 44, 22.00% from 45 to 64, and 14.00% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 92.30 males. For every 100 females age 18 and over, there were 88.80 males.
The median income for a household in the county was $37,266, and the median income for a family was $47,398. Males had a median income of $33,138 versus $23,394 for females. The per capita income for the county was $18,885. About 7.90% of families and 13.10% of the population were below the poverty line, including 14.40% of those under age 18 and 8.90% of those age 65 or over.
Other unincorporated communities
Black Hawk County is divided into seventeen townships:
- Big Creek
- Black Hawk
- Cedar Falls
- East Waterloo
- Mount Vernon
- Spring Creek
The population ranking of the following table is based on the 2010 census of Black Hawk County.
† county seat
|Rank||City/Town/etc.||Municipal type||Population (2010 Census)|
|4||Jesup (mostly in Buchanan County)||City||2,520|
|5||La Porte City||City||2,285|
|7||Elk Run Heights||City||1,117|
|8||Janesville (mostly in Bremer County)||City||930|
Black Hawk County, Iowa Facts for Kids. Kiddle Encyclopedia.