Coralville is located in Johnson county Iowa with a geographic area of 12.6 square miles. The total population in Coralville is 21,630 with 51.3% male and 48.7% female. Children under age 5 represent 8.3% of the population, under age 18 equal 22.2% of the population and over age 65 is 11.3% of the population. The median household income is $68,230, per capita income is $42,251. There are a total of 8,732 housing units with 54.0% owner occupied. Education includes 8.8% of residents that are high school graduates and 61.3% with a bachelor's degree or higher. The average temperature in Coralville in the summer is 75 degrees, and in the winter 23 degrees.
