The name Saucon comes from the native Unami language word Saukunk, meaning "mouth of the creek".

[4] Established in 1743, Upper Saucon was originally part of Bucks County, which was one of the three initial counties established in 1682 by William Penn, founder of the colonial-era Province of Pennsylvania.

Upper Saucon Township has a hot summer humid continental climate (Dfa) and is in hardiness zone 6b.

The average monthly temperature in Center Valley ranges from 29.5 °F (−1.4 °C) in January to 74.3 °F (23.5 °C) in July.

13.6% of all households were made up of individuals, and 5.6% had someone living alone who was 65 years of age or older.

Upper Saucon Township is served by the Southern Lehigh School District.

Upper Saucon Township students in grades nine through 12 attend Southern Lehigh High School in the district.

The park covers approximately 70 acres and is conveniently located in the central portion of the Township.

[11] Upper Saucon is a second-class township and elects five at-large supervisors.