Bethany is located in Oklahoma county Oklahoma with a geographic area of 5.2 square miles. The total population in Bethany is 19,292 with 53.0% male and 47.0% female. Children under age 5 represent 6.7% of the population, under age 18 equal 26.0% of the population and over age 65 is 18.4% of the population. The median household income is $51,286, per capita income is $24,416. There are a total of 7,453 housing units with 53.1% owner occupied. Education includes 25.3% of residents that are high school graduates and 30.3% with a bachelor's degree or higher. The average temperature in Bethany in the summer is 80 degrees, and in the winter 42 degrees.