The racial makeup of the township was 96.44% White, 0.44% Asian, and 3.11% from two or more races.

24.7% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older.

About 3.8% of families and 7.8% of the population were below the poverty line, including 5.7% of those under the age of eighteen and 10.7% of those 65 or over.

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

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