Johnson County, Indiana

From Wikipedia, the free encyclopedia

Johnson County, Indiana
Map
Map of Indiana highlighting Johnson County
Location in the state of Indiana
Map of the U.S. highlighting Indiana
Indiana's location in the U.S.
Statistics
Founded 1823
Seat Franklin
Area
 - Total
 - Land
 - Water

322 sq mi (834 km²)
320 sq mi (829 km²)
1 sq mi (3 km²), 0.42%
Population
 - (2000)
 - Density

115,209
360/sq mi (139/km²)
Website: www.co.johnson.in.us

Johnson County is a county located in the U.S. state of Indiana. As of 2000, the population was 115,209 (128,436 at the 2005 annual update). The county seat is Franklin[1].

Contents

[edit] Geography

According to the U.S. Census Bureau, the county has a total area of 322 square miles (833 km²), of which 320 square miles (829 km²) is land and 1 square mile (4 km²) (0.42%) is water.

[edit] Adjacent counties

[edit] History

Johnson County was formed in 1823. It was named for John Johnson, a judge of the Indiana Supreme Court. This is probably John Johnson of Knox County, delegate to the State constitutional convention, appointed to the Supreme Court in 1816.

[edit] Demographics

Johnson County
Population by year

2000 115,209
1990 88,109
1980 77,240
1970 61,138
1960 43,704
1950 26,183
1940 22,493
1930 21,706
1920 20,739
1910 20,394
1900 20,223
1890 19,561
1880 19,537
1870 18,366
1860 14,854
1850 12,101
1840 9,352
1830 4,019

As of the census[2] of 2000, there were 115,209 people, 42,434 households, and 31,613 families residing in the county. The population density was 360 people per square mile (139/km²). There were 45,095 housing units at an average density of 141 per square mile (54/km²). The racial makeup of the county was 97.04% White, 0.79% Black or African American, 0.18% Native American, 0.84% Asian, 0.03% Pacific Islander, 0.48% from other races, and 0.65% from two or more races. 1.38% of the population were Hispanic or Latino of any race. 26.5% were of German, 19.6% American, 12.4% English and 10.9% Irish ancestry according to Census 2000.

There were 42,434 households out of which 37.40% had children under the age of 18 living with them, 62.00% were married couples living together, 9.00% had a female householder with no husband present, and 25.50% were non-families. 21.20% of all households were made up of individuals and 7.30% had someone living alone who was 65 years of age or older. The average household size was 2.63 and the average family size was 3.06.

In the county the population was spread out with 27.20% under the age of 18, 8.70% from 18 to 24, 30.80% from 25 to 44, 22.30% from 45 to 64, and 11.00% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 96.00 males. For every 100 females age 18 and over, there were 92.80 males.

The median income for a household in the county was $52,693, and the median income for a family was $60,571. Males had a median income of $42,272 versus $28,181 for females. The per capita income for the county was $22,976. About 3.30% of families and 5.60% of the population were below the poverty line, including 5.70% of those under age 18 and 7.70% of those age 65 or over.

[edit] Cities and towns

Johnson County Courthouse, Franklin, Indiana
Johnson County Courthouse, Franklin, Indiana

[edit] Extinct

[edit] Townships

The south end of the county is also home to the Camp Atterbury military installation.

[edit] External references

[edit] References

  • Forstall, Richard L. (editor) (1996). Population of states and counties of the United States: 1790 to 1990 : from the twenty-one decennial censuses. United States Department of Commerce, Bureau of the Census, Population Division. ISBN 0-934213-48-8. 

Coordinates: 39°29′N 86°06′W / 39.49, -86.10