Greenfield is located in Milwaukee county Wisconsin with a geographic area of 11.5 square miles. The total population in Greenfield is 37,117 with 47.7% male and 52.3% female. Children under age 5 represent 4.7% of the population, under age 18 equal 17.2% of the population and over age 65 is 22.1% of the population. The median household income is $61,988, per capita income is $36,851. There are a total of 17,261 housing units with 57.6% owner occupied. Education includes 29.4% of residents that are high school graduates and 32.6% with a bachelor's degree or higher. The average temperature in Greenfield in the summer is 66 degrees, and in the winter 17 degrees.
