 Following a petition to the court that the township's name be changed, an act of the Pennsylvania General Assembly changed the name to Upper Fairfield Township on January 29, 1853.Upper Fairfield Township is bordered by Plunketts Creek Township to the north, Mill Creek Township to the east, Muncy Township to the southeast, Fairfield Township to the south, and Loyalsock and Eldred Townships to the west.Loyalsock Creek is the boundary line between Upper Fairfield and Loyalsock Townships as well as Upper Fairfield and Eldred.