Susquehanna Township is a township in Lycoming County, Pennsylvania. The population was 993 at the 2000 census. It is part of the Williamsport, Pennsylvania Metropolitan Statistical Area.
Susquehanna Township is bordered by the West Branch Susquehanna River to the north, Armstrong Township to the east, Bastress Township to the south and Nippenose Township to the west.
Susquehanna Township was established during the December 1838 sessions of the Pennsylvania General Assembly. It was formed from parts of Nippensoe and Armstrong Townships.
Susquehanna Township was first surveyed in 1769. The surveyors named it "Upper Bottom" to distinguish from a piece of land further to the east that was named "Lower Bottom," present day Duboistown and South Williamsport. The first settlers arrived in 1801 and cleared the alluvial plain near the West Branch Susquehanna River and began farming. The village of Nisbet, a collection of about a dozen homes, rose up around the railroad station of the same name. Two grist mills and a small textile mill were built on Mill Run during the early days of Susquehanna Township.
Susquehanna Township has grown somewhat since it was founded. The village of Nisbet underwent an expansion during the 1950s and 1960s and now serves as a bedroom community for Williamsport and Jersey Shore. Much of the land on the alluvial plain is still farmed. Farmers rent out small portions of their property for the docking of recreational boats on the West Branch Susquehanna River.