Greenfield is located in Monterey county California with a geographic area of 2.9 square miles. The total population in Greenfield is 17,565 with 49.2% male and 50.8% female. Children under age 5 represent 11.6% of the population, under age 18 equal 35.6% of the population and over age 65 is 6.3% of the population. The median household income is $64,879, per capita income is $16,683. There are a total of 3,755 housing units with 48.8% owner occupied. Education includes 23.9% of residents that are high school graduates and 11.0% with a bachelor's degree or higher. The average temperature in Greenfield in the summer is 76 degrees, and in the winter 43 degrees.
