Located in Lawrence County in Western Pennsylvania, Neshannock Township is situated along the Ohio/Pennsylvania border.
Regional transportation corridors influenced development of Neshannock in the past and will continue to do so in the future. The primary connector between major population and economic centers to the north and south is Route 18, which runs north-south through the Township and provides access to Routes 422 and 224. Also, I-376 provides fast, direct, and easy access to destinations in the Pittsburgh region, including Pittsburgh International Airport, the City of Pittsburgh, and points along the Pennsylvania Turnpike.
Neshannock is bordered by Wilmington Township in the north. The border with Hickory Township in the east is formed by Neshannock Creek. New Castle City and Union Township form the southern border along the Shenango River. Mahoning and Pulaski Townships form the western boundary.