The growth of Marcellus township and village can be attributed to the Peninsular Railroad in the winter of 1870–1871, which created an economic boom for the area at the time.

[4] Marcellus Township is located in the northeast corner of Cass County in southwestern Michigan.

[7] As of the census[1] of 2000, there were 2,712 people, 1,021 households, and 752 families residing in the township.

There were 1,186 housing units at an average density of 35.6 per square mile (13.7/km2).

22.1% of all households were made up of individuals, and 9.4% had someone living alone who was 65 years of age or older.