Hermitage is a city located in Mercer County Pennsylvania. With a 2020 population of 15,361, it is the 36th largest city in Pennsylvania and the 2280th largest city in the United States . Hermitage is currently declining at a rate of -0.36% annually and its population has decreased by -5.30% since the most recent census, which recorded a population of 16,220 in 2010. Hermitage reached it's highest population of in . Spanning over 30 miles, Hermitage has a population density of 521 people per square mile.
The average household income in Hermitage is $75,796 with a poverty rate of 10.11%. The median rental costs in recent years comes to $808 per month, and the median house value is $149,000. The median age in Hermitage is 49.1 years, 45.9 years for males, and 52.7 years for females.