Cassopolis is located in Cass county Michigan with a geographic area of 2.0 square miles. The total population in Cassopolis is 1,684 with 52.3% male and 47.7% female. Children under age 5 represent 7.1% of the population, under age 18 equal 22.2% of the population and over age 65 is 18.4% of the population. The median household income is $35,684, per capita income is $18,605. There are a total of 693 housing units with 51.1% owner occupied. Education includes 44.6% of residents that are high school graduates and 8.9% with a bachelor's degree or higher. The average temperature in Cassopolis in the summer is 67 degrees, and in the winter 23 degrees.