Three rivers is located in Cass county Michigan with a geographic area of 5.6 square miles. The total population in Three rivers is 7,644 with 46.4% male and 53.6% female. Children under age 5 represent 9.9% of the population, under age 18 equal 28.3% of the population and over age 65 is 13.3% of the population. The median household income is $42,546, per capita income is $20,399. There are a total of 3,174 housing units with 48.2% owner occupied. Education includes 35.3% of residents that are high school graduates and 16.5% with a bachelor's degree or higher. The average temperature in Three rivers in the summer is 69 degrees, and in the winter 23 degrees.