[1] Kalkaska 11SE is a weather station 8.5 miles (13.7 km) north of Norwich Township.

[7] As of the census[3] of 2000, there were 646 people, 258 households, and 186 families residing in the township.

There were 547 housing units at an average density of 7.6 per square mile (2.9/km2).

There were 258 households, out of which 29.1% had children under the age of 18 living with them, 60.5% were married couples living together, 5.4% had a female householder with no husband present, and 27.9% were non-families.

24.8% of all households were made up of individuals, and 10.1% had someone living alone who was 65 years of age or older.