Chula vista is located in San diego county California with a geographic area of 49.6 square miles. The total population in Chula vista is 268,779 with 49.5% male and 50.5% female. Children under age 5 represent 6.3% of the population, under age 18 equal 24.7% of the population and over age 65 is 12.1% of the population. The median household income is $86,132, per capita income is $32,521. There are a total of 79,486 housing units with 60.1% owner occupied. Education includes 17.5% of residents that are high school graduates and 33.0% with a bachelor's degree or higher. The average temperature in Chula vista in the summer is 69 degrees, and in the winter 43 degrees.