[5] The township derives its name from Neshannock Creek, a Native American name purported to mean "double stream".

The township includes the New Castle Northwest census-designated place, as well as the communities of Walmo, Coaltown, Painter Hill, Kings Chapel, and Sunset Valley.

27.0% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older.

Homes in Neshannock range from city street living on the edge of New Castle to larger country-style houses with several acres.

Neshannock Towhship's main recreation center is Pearson Park, which includes a members-only community pool, a playground, two Little League baseball fields, a party center (the Hutchison Center), a 1-mile walking trail, six tennis courts, a basketball court, and a volleyball court.

Also part of Neshannock Township's Pearson Park is Hess Ice Rink and Baseball Field.

The club has a golf course, tennis courts, putting green, and a driving range.