Forest grove is located in Washington county Oregon with a geographic area of 5.8 square miles. The total population in Forest grove is 24,847 with 48.7% male and 51.3% female. Children under age 5 represent 6.3% of the population, under age 18 equal 23.2% of the population and over age 65 is 14.5% of the population. The median household income is $69,513, per capita income is $30,180. There are a total of 8,601 housing units with 61.2% owner occupied. Education includes 21.9% of residents that are high school graduates and 35.6% with a bachelor's degree or higher. The average temperature in Forest grove in the summer is 67 degrees, and in the winter 35 degrees.