The Shelbyville ZIP code 49344 also serves parts of northern Martin Township.

[7] As of the census[1] of 2000, there were 2,514 people, 891 households, and 686 families residing in the township.

There were 935 housing units at an average density of 26.2 per square mile (10.1/km2).

There were 891 households, out of which 36.8% had children under the age of 18 living with them, 65.9% were married couples living together, 7.0% had a female householder with no husband present, and 22.9% were non-families.

19.0% of all households were made up of individuals, and 7.6% had someone living alone who was 65 years of age or older.