View Homes for Sale in Sumpter TwpSumpter Twp Real EstateSumpter Twp real estate listings include condos, townhomes, and single family homes for sale. Commercial properties are also available. If you see a property you’re interested in, contact a Sumpter Twp real estate agent to arrange a tour today! Sumpter Twp, Michigan has a population of 1,940. The median household income in Sumpter Twp, Michigan is $45,223. The median household income for the surrounding county is $43,702 compared to the national median of $57,652. The median age of people living in Sumpter Twp is 39.9 years. Sumpter Twp WeatherThe average high temperature in July is 83.5 degrees, with an average low temperature in January of 18.2 degrees. The average rainfall is approximately 33.5 inches per year, with 34.3 inches of snow per year. Nearby Homes for Sale |