Upper St Clair is located in Pennsylvania. Upper St Clair, Pennsylvania has a population of 151,603.
The median household income in Upper St Clair, Pennsylvania is $54,306. The median household income for the surrounding county is $66,659 compared to the national median of $69,021. The median age of people living in Upper St Clair is 33.7 years.
The average high temperature in July is 83.5 degrees, with an average low temperature in January of 21 degrees. The average rainfall is approximately 38.3 inches per year, with 27.7 inches of snow per year.