Folsom is located in Sacramento county California with a geographic area of 27.9 square miles. The total population in Folsom is 79,584 with 50.9% male and 49.1% female. Children under age 5 represent 5.7% of the population, under age 18 equal 24.8% of the population and over age 65 is 12.7% of the population. The median household income is $118,006, per capita income is $48,684. There are a total of 27,717 housing units with 68.4% owner occupied. Education includes 9.5% of residents that are high school graduates and 58.6% with a bachelor's degree or higher. The average temperature in Folsom in the summer is 76 degrees, and in the winter 43 degrees.