Marcellus is located in Cass county Michigan with a geographic area of 0.7 square miles. The total population in Marcellus is 1,140 with 51.8% male and 48.2% female. Children under age 5 represent 5.0% of the population, under age 18 equal 22.7% of the population and over age 65 is 16.0% of the population. The median household income is $51,875, per capita income is $25,736. There are a total of 443 housing units with 86.0% owner occupied. Education includes 34.3% of residents that are high school graduates and 13.8% with a bachelor's degree or higher. The average temperature in Marcellus in the summer is 67 degrees, and in the winter 23 degrees.