As of the census[1] of 2000, there were 1,200 people, 441 households, and 333 families residing in the township.

There were 639 housing units at an average density of 17.7 per square mile (6.8/km2).

18.6% of all households were made up of individuals, and 7.3% had someone living alone who was 65 years of age or older.

Hanover Township is served by two public school districts.

The majority of the township is served by Buckley Community School District, while the southern portion of the township is served by Mesick Consolidated Schools to the southwest in Mesick.