Oak creek is located in Milwaukee county Wisconsin with a geographic area of 28.4 square miles. The total population in Oak creek is 36,321 with 49.2% male and 50.8% female. Children under age 5 represent 4.9% of the population, under age 18 equal 21.1% of the population and over age 65 is 14.5% of the population. The median household income is $75,657, per capita income is $39,933. There are a total of 15,348 housing units with 62.3% owner occupied. Education includes 23.5% of residents that are high school graduates and 37.2% with a bachelor's degree or higher. The average temperature in Oak creek in the summer is 70 degrees, and in the winter 17 degrees.