Ada is located in Pontotoc county Oklahoma with a geographic area of 20.1 square miles. The total population in Ada is 17,399 with 46.4% male and 53.6% female. Children under age 5 represent 6.3% of the population, under age 18 equal 23.2% of the population and over age 65 is 14.2% of the population. The median household income is $41,070, per capita income is $24,400. There are a total of 6,643 housing units with 45.5% owner occupied. Education includes 24.0% of residents that are high school graduates and 33.4% with a bachelor's degree or higher. The average temperature in Ada in the summer is 80 degrees, and in the winter 42 degrees.