The township was named for Marshall Spooner, a state judge.
As of the census[4] of 2000, there were 281 people, 113 households, and 77 families residing in the township.
The racial makeup of the township was 96.09% White, 2.14% Native American, 0.36% Asian, and 1.42% from two or more races.
29.2% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older.
The artist Maurice Noble was born in Spooner, and the automotive designer Edmund E. Anderson grew up there.