Upper Saucon Township was formally established with the enactment of the Second-Class Township Code on May 1, 1933.  Upper Saucon Township is located in the southeastern corner of Lehigh County, approximately sixty miles north of Philadelphia and eighty miles east of Harrisburg.  The township is bordered on the north by Salisbury Township, on the east by Lower Saucon Township in Northampton County, on the south by Springfield Township in Bucks County, and on the west by Lower and Upper Milford Townships.  The Borough of Coopersburg is located within the southern tier of the Township.

Upper Saucon Township is linked to the regional transportation network by three major highways, Interstate 78, Pennsylvania Route 309, and Pennsylvania Route 378.  From the east, Interstate 78 runs southwest traversing the northeastern section of the township until it merges with Route 309. The Interstate then travels north and then west sharing six lanes with Route 309 until Route 309 splits from the Interstate and runs north and merges with Pennsylvania Route 22 in Upper Macungie Township.  Route 309 runs southeast from the Interstate through the center of the township and then south after Route 378 providing a direct link to Quakertown, Philadelphia, and other Bucks and Montgomery County communities to the south.  Route 378 runs north from Route 309 in the south-central area of the township to eventually meet US Route 22, north of the city of Bethlehem.

Upper Saucon Township has been a bedroom community for the Lehigh Valley region including the cities of Allentown, Bethlehem, and Easton.  The rolling hills and farmland that characterize the township and its convenient location have made Upper Saucon Township a very attractive place to live for those wanting a fairly rural atmosphere with access to metropolitan amenities.