[3] According to the United States Census Bureau, the township has a total area of 35.5 square miles (92 km2), all land.

15.8% of all households were made up of individuals, and 3.9% had someone living alone who was 65 years of age or older.

About 7.3% of families and 11.2% of the population were below the poverty line, including 16.0% of those under the age of eighteen and 10.3% of those 65 or over.

Chanarambie Township is located in Minnesota's 1st congressional district, represented by Mankato educator Tim Walz, a Democrat.

At the state level, Chanarambie Township is located in Senate District 22, represented by Republican Doug Magnus, and in House District 22A, represented by Republican Joe Schomacker.