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Johnson County, Iowa
From Wikipedia, the free encyclopedia
| Johnson County, Iowa | |
| Map | |
 Location in the state of Iowa |
|
 Iowa's location in the USA |
|
| Statistics | |
| Founded | information needed |
|---|---|
| Seat | Iowa City |
| Area - Total - Land - Water |
1,614 km² (623 mi²) 1,592 km² (614 mi²) 23 km² (9 mi²), 1.42% |
| Population - (2000) - Density |
111,006 70/km² |
| Website: www.johnson-county.com | |
Johnson County is a county located in the U.S. state of Iowa. As of 2000, the population is 111,006. Its county seat is Iowa City6, also home of the University of Iowa. Johnson County is one of the two counties that make up the Iowa City, Iowa Metropolitan Statistical Area.[1] It is named for Richard Mentor Johnson, the ninth vice president of the United States.
Contents |
According to the U.S. Census Bureau, the county has a total area of 1,614 km² (623 mi²). 1,592 km² (614 mi²) of it is land and 23 km² (9 mi²) of it is water. The total area is 1.42% water.
- Linn County (north)
- Cedar County (northeast)
- Muscatine County & Louisa County (southeast)
- Washington County (southwest)
- Iowa County (west)
- Benton County (northwest)
| Historical populations | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1900 | 24,817 |
|
|
| 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% | |
| IA Counties 1900-1990 | |||
As of the census² of 2000, there were 111,006 people, 44,080 households, and 23,582 families residing in the county. The population density was 70/km² (181/mi²). There were 45,831 housing units at an average density of 29/km² (75/mi²). The racial makeup of the county was 90.13% White, 2.90% Black or African American, 0.28% Native American, 4.12% Asian, 0.04% Pacific Islander, 1.01% from other races, and 1.51% from two or more races. 2.51% of the population were Hispanic or Latino of any race.
There were 44,080 households out of which 26.50% had children under the age of 18 living with them, 43.90% were married couples living together, 6.80% had a female householder with no husband present, and 46.50% were non-families. 30.20% of all households were made up of individuals and 5.60% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.97.
In the county the population was spread out with 20.10% under the age of 18, 23.40% from 18 to 24, 30.80% from 25 to 44, 18.20% from 45 to 64, and 7.40% who were 65 years of age or older. The median age was 28 years. For every 100 females there were 99.10 males. For every 100 females age 18 and over, there were 97.30 males.
The median income for a household in the county was $40,060, and the median income for a family was $60,112. Males had a median income of $36,279 versus $29,793 for females. The per capita income for the county was $22,220. About 5.20% of families and 15.00% of the population were below the poverty line, including 8.10% of those under age 18 and 3.80% of those age 65 or over.
- John T. Struble (1831-1916) early builder and farmer.
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- ^ United States Office of Management and Budget. Update of Statistical Area Definitions and Guidance on Their Uses (PDF) 5, 36.. Retrieved on July 21, 2006.
