Oklahoma in United States with a geographic area of 69,897.8 square miles. The total population in Oklahoma is 3,949,342 with 49.5% male and 50.5% female. Children under age 5 represent 6.6% of the population, under age 18 equal 24.2% of the population and over age 65 is 15.7% of the population. The median household income is $53,840, per capita income is $29,873. There are a total of 1,493,569 housing units with 66.1% owner occupied. Education includes 28.0% of residents that are high school graduates and 28.3% with a bachelor's degree or higher. The average temperature in Oklahoma in the summer is 80 degrees, and in the winter 39 degrees.
