Perris is located in Riverside county California with a geographic area of 31.5 square miles. The total population in Perris is 77,708 with 50.2% male and 49.8% female. Children under age 5 represent 8.7% of the population, under age 18 equal 31.2% of the population and over age 65 is 6.6% of the population. The median household income is $66,926, per capita income is $20,341. There are a total of 17,470 housing units with 65.1% owner occupied. Education includes 29.9% of residents that are high school graduates and 12.3% with a bachelor's degree or higher. The average temperature in Perris in the summer is 77 degrees, and in the winter 43 degrees.