[1] LaClede Township was named for Pierre Laclède, the founder of St. Louis, Missouri.

As of the 2020 census[1] there were 844 people, 336 households, and 212 families residing in the township.

There were 374 housing units at an average density of 10.15 per square mile (3.92/km2).

The racial makeup of the township was 96.21% White, 0.00% African American, 0.24% Native American, 0.59% Asian, 0.00% Pacific Islander, 0.12% from other races, and 2.84% from two or more races.

31.50% of all households were made up of individuals, and 11.60% had someone living alone who was 65 years of age or older.