Tenmile Creek, an eastward-flowing tributary of the Monongahela River, forms the short northeastern border of the township, while the South Fork of Tenmile Creek forms the longer southeastern border.

The borough of Clarksville, located between the two creeks at their confluence, borders the northeastern corner of the township.

[3] Unincorporated communities in the township include Teagarden Homes, Burson Plan, Chartiers, Mather, Stony Point, and Lippincott.

As of the census[5] of 2000, there were 2,600 people, 1,025 households, and 744 families residing in the township.

24.7% of all households were made up of individuals, and 12.5% had someone living alone who was sixty-five years of age or older.