[2] According to the United States Census Bureau, the township has a total area of 8.7 square miles (22.6 km2), all land.

The township includes the unincorporated communities of Quentin in the northeast and Mount Gretna Heights in the southwest.

As of the census[4] of 2000, there were 1,909 people, 789 households, and 583 families residing in the township.

There were 944 housing units at an average density of 108.2 per square mile (41.8/km2).

22.6% of all households were made up of individuals, and 10.0% had someone living alone who was 65 years of age or older.