Garden grove is located in Orange county California with a geographic area of 18.0 square miles. The total population in Garden grove is 172,800 with 50.3% male and 49.7% female. Children under age 5 represent 5.3% of the population, under age 18 equal 21.4% of the population and over age 65 is 14.1% of the population. The median household income is $73,611, per capita income is $27,003. There are a total of 47,837 housing units with 53.7% owner occupied. Education includes 21.9% of residents that are high school graduates and 25.0% with a bachelor's degree or higher. The average temperature in Garden grove in the summer is 73 degrees, and in the winter 43 degrees.