Clearlake is located in Lake county California with a geographic area of 10.1 square miles. The total population in Clearlake is 15,329 with 49.1% male and 50.9% female. Children under age 5 represent 5.2% of the population, under age 18 equal 27.0% of the population and over age 65 is 18.1% of the population. The median household income is $36,339, per capita income is $18,302. There are a total of 5,824 housing units with 55.2% owner occupied. Education includes 36.5% of residents that are high school graduates and 5.9% with a bachelor's degree or higher. The average temperature in Clearlake in the summer is 71 degrees, and in the winter 43 degrees.
