Upper St Clair Real EstateUpper St Clair is located in Pennsylvania. Upper St Clair, Pennsylvania has a population of 152,506. The median household income in Upper St Clair, Pennsylvania is $44,092. The median household income for the surrounding county is $56,333 compared to the national median of $57,652. The median age of people living in Upper St Clair is 32.9 years. Upper St Clair WeatherThe average high temperature in July is 82.8 degrees, with an average low temperature in January of 21.3 degrees. The average rainfall is approximately 38.5 inches per year, with 41.4 inches of snow per year. Upper St Clair MapReal estate near Upper St ClairNearby CitiesNearby Cities Homes for Sale |