Johnson County, Iowa

The Johnson County Courthouse in Iowa City, listed on the NRHP since 1975
administration
US state :	Iowa
Administrative headquarters :	Iowa City
Address of the administrative headquarters:	County Administrative Building 913 S. Dubuque St. Iowa City, IA 52240-4273
Foundation :	December 21, 1837
Made up from:	Des Moines County, Wisconsin Territory
Area code :	001 319
Demographics
Residents :	130,882  (2010)
Population density :	82.3 inhabitants / km 2
geography
Total area :	1614 km²
Water surface :	23 km²
map
Website : www.johnson-county.com

The Johnson County is a county in the US -amerikanischen State Iowa . In 2010 , the county had 130,882 residents and a population density of 82.3 people per square kilometer. By 2013 the population increased to 139,155. The county seat is Iowa City , which was founded with this name as the capital of the Iowa Territory .

Johnson County is located in the north of the metropolitan area around the city of Iowa City.

geography

The county is located in east-east Iowa and has an area of ​​1,614 square kilometers, of which 23 square kilometers are water.

In the center it is traversed by the Iowa River , a right tributary of the Mississippi . The Cedar River , which flows into the Iowa River further southeast of the county, flows through the far northeast of the county.

The following neighboring counties border Johnson County:

Benton County	Linn County	Cedar County
Iowa County		Muscatine County
	Washington County	Louisa County

history

Johnson

Johnson County was formed on December 21, 1837 from former parts of Des Moines County in what was then Wisconsin Territory . It was named after Richard M. Johnson (1780-1850), the ninth Vice President of the USA (1837-1841).

population

Population development
Census	Residents		± in%
1840	1491		-
1850	4472		199.9%
1860	17,573		293%
1870	24,898		41.7%
1880	25,420		2.1%
1890	23,082		-9.2%
1900	24,817		7.5%
1910	25,914		4.4%
1920	26,462		2.1%
1930	30,276		14.4%
1940	33.191		9.6%
1950	45,756		37.9%
1960	53,663		17.3%
1970	72.127		34.4%
1980	81,717		13.3%
1990	96.119		17.6%
2000	111.006		15.5%
2010	130,882		17.9%
2013 estimate	139,155		6.3%
Before 1900 1900–1990 2000 2010–2013

According to the 2010 census , Johnson County had 130,882 people in 50,733 households. The population density was 82.3 inhabitants per square kilometer. Statistically, 2.31 people lived in 50,733 households.

The racial the population was composed of 85.6 percent white, 4.8 percent African American, 0.2 percent Native American, 5.2 percent Asian and other ethnic groups; 2.3 percent were descended from two or more races. Hispanic or Latino of any race was 4.7 percent of the population.

19.8 percent of the population were under 18 years old, 71.6 percent were between 18 and 64 and 8.6 percent were 65 years or older. 50.0 percent of the population was female.

The median income for a household was 48,955  USD . The per capita income was $ 26,987. 16.6 percent of the population lived below the poverty line.

Johnson County localities

Citys

Coralville Hills Iowa City Lone Tree

North Liberty Oxford Shueyville Solon

Swisher Tiffin University Heights West Branch 1

Census-designated place (CDP)

• Frytown

Other Unincorporated Communities

Amish Cosgrove Cou Falls Morse

Oakdale Oasis River Junction Sharon Center

Sutliff Twin View Heights Windham

^{1 - predominantly in Cedar County}

structure

Johnson County is divided into 21 townships :

Township Pop. (2010) FIPS Big Grove Township 3736    19-90240 Cedar Township 534    19-90543 Clear Creek Township 5294    19-90714 East Lucas Township 551    19-91119 Fremont Township 1743    19-91479 Graham Township 489    19-91599 Hardin Township 530    19-91836

Township Pop. (2010) FIPS Jefferson Township 4122    19-92229 Liberty Township 1104    19-92463 Lincoln Township 205    19-92562 Madison Township 3047    19-92766 Monroe Township 562    19-92973 Newport Township 2169    19-93093 Oxford Township 1670    19-93249

Township Pop. (2010) FIPS Penn Township 23,549    19-93285 Pleasant Valley Township 269    19-93417 Scott Township 2144    19-93789 Sharon Township 1291    19-93831 Union Township 659    19-94224 Washington Township 1200    19-94515 West Lucas Township 8152    19-94686

The city of Iowa City is not part of any township.

See also

• List of entries on the National Register of Historic Places in Johnson County, Iowa

Individual evidence

1. ↑ Extract from the National Register of Historic Places - No. 75000692. Retrieved April 4, 2012
2. ^ Johnson County in the United States Geological Survey's Geographic Names Information System.Retrieved February 26, 2011
3. ↑ ^{a b c} U.S. Census Bureau, State & County QuickFacts - Johnson County, IA ( July 12, 2011 memento on WebCite ) Retrieved September 30, 2014
4. ↑ ^{a b} National Association of Counties.Retrieved September 30, 2014
5. ^ US Census Bureau - Census of Population and Housing.Retrieved March 15, 2011
6. ^ Extract from Census.gov.Retrieved February 16, 2011
7. ↑ 2010 US Census Iowa Township and Other Subdivision Population. Retrieved July 23, 2019 . 

Web links

Commons : Johnson County, Iowa  - Collection of pictures, videos, and audio files

• Johnson County Iowa ( November 10, 2015 memento on the Internet Archive )
• city-data.com - Johnson County, Iowa

Coordinates: 41 ° 40 ′  N , 91 ° 35 ′  W