Oklahoma County, Oklahoma

Oklahoma County
	Oklahoma County, Oklahoma
	; Seal
	; Seal
	; Location in the state of Oklahoma
	; Oklahoma's location in the U.S.
Founded	1890
Seat	Oklahoma City
Area; - Total; - Land; - Water	; 718 sq mi (1,860 km²); 709 sq mi (1,836 km²); 9 sq mi (23 km²), 1.28%
Population; - (2010); - Density	; 718,633; 1,013/sq mi (391/km²)
Website	www.oklahomacounty.org

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Oklahoma County is a county located in the central part of the U.S. state of Oklahoma. The population was 718,633 at the 2010 census. The county seat and principal city is Oklahoma City^[1]. Oklahoma County is at the heart of the Oklahoma City Metropolitan Statistical Area and is the most populous county in the state.

Oklahoma County is one of seven US counties to share its name with its state (the others are Arkansas County, Hawaii County, Idaho County, Iowa County, New York County and Utah County).

[edit] History

Oklahoma County was originally called County Two and was one of seven counties established by the Organic Act of 1890.^[2]

County business initially took place in a building at the intersection of California Avenue and Robinson Street until the construction of the first Oklahoma County Courthouse at 520 West Main Street in the 1900s. In 1937, the county government was moved to a building at 321 Park Avenue, which now serves only as the county courthouse.^[3]

[edit] Geography

According to the U.S. Census Bureau, the county has a total area of 718 square miles (1,860 km²), of which 709 square miles (1,840 km²) is land and 9 square miles (23 km²) (1.28%) is water.

[edit] Major highways

[edit] Adjacent counties

Logan County (north)
Lincoln County (east)
Pottawatomie County (southeast)
Cleveland County (south)
Canadian County (west)
Kingfisher County (northwest)

[edit] National protected area

Oklahoma City National Memorial

[edit] Demographics

Historical populations
Census	Pop.	%±
1890	11,742	—
1900	25,915	120.7%
1910	85,232	228.9%
1920	116,307	36.5%
1930	221,738	90.6%
1940	244,159	10.1%
1950	325,352	33.3%
1960	439,506	35.1%
1970	526,805	19.9%
1980	568,933	8.0%
1990	599,611	5.4%
2000	660,448	10.1%
2010	718,633	8.8%
U.S. Decennial Census

Age pyramid for Oklahoma County, Oklahoma, based on census 2000 data.

As of the census^[4] of 2000, there were 660,448 people, 266,834 households, and 170,773 families residing in the county. The population density was 931 people per square mile (360/km²). There were 295,020 housing units at an average density of 416 per square mile (161/km²). The racial makeup of the county was 70.44% White, 15.03% Black or African American, 3.42% Native American, 2.81% Asian, 0.08% Pacific Islander, 4.36% from other races, and 3.87% from two or more races. 8.68% of the population were Hispanic or Latino of any race.

There were 266,834 households out of which 30.90% had children under the age of 18 living with them, 46.30% were married couples living together, 13.50% had a female householder with no husband present, and 36.00% were non-families. 30.20% of all households were made up of individuals and 9.20% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 3.02.

In the county, the population was spread out with 25.60% under the age of 18, 10.90% from 18 to 24, 30.00% from 25 to 44, 21.40% from 45 to 64, and 12.20% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 94.20 males. For every 100 females age 18 and over, there were 90.80 males.

The median income for a household in the county was $35,063, and the median income for a family was $42,797. Males had a median income of $31,660 versus $24,279 for females. The per capita income for the county was $19,551. About 11.70% of families and 15.30% of the population were below the poverty line, including 21.70% of those under age 18 and 8.60% of those age 65 or over.