[3] According to the United States Census Bureau, the township has a total area of 35.2 square miles (91.0 km2), all land.

10.0% of all households were made up of individuals, and 2.5% had someone living alone who was 65 years of age or older.

About 8.1% of families and 8.6% of the population were below the poverty line, including 8.6% of those under the age of eighteen and none of those 65 or over.

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

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