Rapid River, Michigan As of the census[1] of 2000, there were 1,877 people, 771 households, and 548 families residing in the township.

The population density was 11.2 inhabitants per square mile (4.3/km2).

There were 1,143 housing units at an average density of 6.8 per square mile (2.6/km2).

There were 771 households, out of which 28.3% had children under the age of 18 living with them, 59.7% were married couples living together, 7.4% had a female householder with no husband present, and 28.8% were non-families.

25.2% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older.