The present name was adopted in 1877 to match that of the village of Perham located therein.

As of the census[1] of 2000, there were 931 people, 316 households, and 253 families residing in the township.

The population density was 29.5 inhabitants per square mile (11.4/km2).

There were 316 households, out of which 44.6% had children under the age of 18 living with them, 70.6% were married couples living together, 4.4% had a female householder with no husband present, and 19.9% were non-families.

14.9% of all households were made up of individuals, and 5.4% had someone living alone who was 65 years of age or older.