Calexico is located in Imperial county California with a geographic area of 8.6 square miles. The total population in Calexico is 39,841 with 46.8% male and 53.2% female. Children under age 5 represent 6.8% of the population, under age 18 equal 28.0% of the population and over age 65 is 15.5% of the population. The median household income is $42,732, per capita income is $17,072. There are a total of 9,333 housing units with 52.9% owner occupied. Education includes 19.7% of residents that are high school graduates and 18.7% with a bachelor's degree or higher. The average temperature in Calexico in the summer is 76 degrees, and in the winter 43 degrees.