The township was named for Moses Lagarde, an early settler.

As of the 2020 census, 158 people, 55 housing units and 41 families.

22% of all households were made up of individuals and 17.1% had someone living alone who was 65 years of age or older.

There were 55 housing units at an average density of 1.5 per square mile (0.58/km2).

The racial make-up of the township was 5% Hispanic/Latino, 50% White, 25% Native American and 17.7% from two or more races.