As of the census[1] of 2000, there were 182 people, 75 households, and 60 families residing in the township.

18.7% of all households were made up of individuals, and 12.0% had someone living alone who was 65 years of age or older.

About 9.1% of families and 7.3% of the population were below the poverty line, including 5.4% of those under the age of eighteen and 8.7% of those 65 or over.

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

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