[3] The Dimmsville Covered Bridge was listed on the National Register of Historic Places in 1979.

Cocolamus Creek, a tributary of the Juniata River, flows through the western part of the township.

According to the United States Census Bureau, the township has a total area of 19.5 square miles (50.4 km2), of which 0.9 acres (3,723 m2), or 0.01%, are water.

The racial makeup of the township was 98.54% White, 0.73% African American, 0.18% Asian, and 0.55% from two or more races.

16.5% of all households were made up of individuals, and 7.7% had someone living alone who was 65 years of age or older.