Greenville is located in Montcalm county Michigan with a geographic area of 6.3 square miles. The total population in Greenville is 8,407 with 44.8% male and 55.2% female. Children under age 5 represent 6.3% of the population, under age 18 equal 25.1% of the population and over age 65 is 21.8% of the population. The median household income is $43,689, per capita income is $22,552. There are a total of 3,622 housing units with 58.6% owner occupied. Education includes 33.4% of residents that are high school graduates and 22.8% with a bachelor's degree or higher. The average temperature in Greenville in the summer is 68 degrees, and in the winter 23 degrees.