Upper St. Clair is a city located in Pennsylvania. Upper St. Clair has a 2020 population of 19,592. Upper St. Clair is currently declining at a rate of 0.00% annually and its population has increased by 1.89% since the most recent census, which recorded a population of 19,229 in 2010. Upper St. Clair reached it's highest population of 19,592 in 2018.
The average household income in Upper St. Clair is $166,675 with a poverty rate of 2.36%. The median rental costs in recent years comes to $1,823 per month, and the median house value is $289,600. The median age in Upper St. Clair is 43.5 years, 42.4 years for males, and 44.8 years for females. For every 100 females there are 96.2 males.