Sumpter Township, Cumberland County, Illinois

[2] According to the 2010 census, the township has a total area of 45.69 square miles (118.3 km2), all land.

As of the 2020 census[2] there were 2,051 people, 840 households, and 584 families residing in the township.

There were 880 housing units at an average density of 19.26 per square mile (7.44/km2).

The racial makeup of the township was 96.10% White, 0.15% African American, 0.15% Native American, 0.34% Asian, 0.00% Pacific Islander, 0.24% from other races, and 3.02% from two or more races.

24.40% of all households were made up of individuals, and 19.50% had someone living alone who was 65 years of age or older.

Map of Illinois highlighting Cumberland County