The district encompasses 9.83 mi2 (25.45 km2) and shares its boundaries with its namesake township.

[2] Upper St. Clair High School hosts the 9th through 12th grades.

According to 2020 census data, the district serves a resident population of 21,160.

[5] The district is nationally recognized for its academic success and extracurricular programs.

The district has received numerous awards and distinctions including 13 National Blue Ribbon Awards, being named the number one public school district in Pennsylvania, and Upper St. Clair High School being named the 113th among high schools nationally.