Rocklin is located in Placer county California with a geographic area of 19.8 square miles. The total population in Rocklin is 67,070 with 48.9% male and 51.1% female. Children under age 5 represent 5.9% of the population, under age 18 equal 25.9% of the population and over age 65 is 13.5% of the population. The median household income is $100,664, per capita income is $42,792. There are a total of 22,912 housing units with 67.0% owner occupied. Education includes 11.5% of residents that are high school graduates and 50.9% with a bachelor's degree or higher. The average temperature in Rocklin in the summer is 76 degrees, and in the winter 43 degrees.
