Oklahoma County, Oklahoma

Oklahoma County is a located in the  part of the of. As of 2000, the population was 660,448, but, in 2006, the county's population was estimated at 691,266. Its and principal city is. Oklahoma County is at the heart of the Metropolitan Area and is the most populous county in the state.

Geography
According to the, the county has a total area of 1,860 (718 ). 1,837 km² (709 sq mi) of it is land and 24 km² (9 sq mi) of it (1.28%) is water.

Adjacent counties

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Demographics
As of the of 2000, there were 660,448 people, 266,834 households, and 170,773 families residing in the county. The was 360/km² (931/sq mi). There were 295,020 housing units at an average density of 161/km² (416/sq mi). The racial makeup of the county was 70.44%, 15.03% or , 3.42% , 2.81% , 0.08% , 4.36% from , and 3.87% from two or more races. 8.68% of the population were or  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 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 for the county was $19,551. About 11.70% of families and 15.30% of the population were below the, including 21.70% of those under age 18 and 8.60% of those age 65 or over.