Upper Saucon Township is an area of approximately 24.66 square miles.  According to the year 2020 census, population was reportedly 17,029 people. The township has over 86 miles of township roadways and 50.61 miles of state roadways.  As of 2018, land use was approximately 43.8% Residential, 17.1% Agricultural,12.5% Parks and Recreation, 10.7% Undeveloped, 7.3% Transportation and Utilities, 5.5% Public and Institutional, 2.1% commercial, and 1.0% Industrial and warehousing.  

As of the 2020 census, there were 6,217 housing units, 97% of which were occupied.  The sexes of the township’s population were almost evenly divided, with a female population of 49.6% and a male population of 50.4%.  The median age was 42.9 years of age.  17.1% of the population was over the age of 65.  The racial make-up of the community was 87.4% Caucasian, 5.2% Two+, 3.3% Hispanic, 2.3% Asian, 1.2% African American, and .6% were categorized as “All Others”. 

In 2021, The Annual Average Daily Traffic (AADT) traveling on Route 309 between Interstate 78 and Center Valley Parkway was approximately 49,000 vehicles per day.  Approximately 25,000 vehicles travel on Route 309 between Center Valley Parkway and Route 378 and over 30,000 vehicles travel on Route 309 between Route 378 and the southern Township line.  Approximately 14,000 vehicles travel on Route 378 and 19,000 vehicles travel on Center Valley Parkway each day.

Center Valley Parkway was constructed in 1999 linking Route 309 to Route 378 in the north-eastern section of the township.  Since this time, the township has had a significant increase in commercial development, including the opening of Olympus America’s corporate headquarters, two large commercial properties owned and managed by Liberty Property Trust, Dun & Bradstreet, Penn State University’s Lehigh Valley Campus, two hotels, three medical buildings and the Promenade Shops at Saucon Valley, the region’s first lifestyle Center, featuring approximately fifty-five retail stores, fifteen restaurants, and AMC Cinema, a sixteen auditorium theatre with stadium seating.  A rehabilitation hospital has also recently been constructed on the corner of Center Valley Parkway and Saucon Valley Road.