Mount Joy is a city located in Pennsylvania. With a 2020 population of 8,343, it is the 89th largest city in Pennsylvania and the 3504th largest city in the United States. Mount Joy is currently growing at a rate of 0.86% annually and its population has increased by 12.59% since the most recent census, which recorded a population of 7,410 in 2010. Spanning over 2 miles, Mount Joy has a population density of 3,461 people per square mile.
The average household income in Mount Joy is $73,862 with a poverty rate of 6.78%. The median rental costs in recent years comes to $954 per month, and the median house value is $168,800. The median age in Mount Joy is 37.5 years, 37.1 years for males, and 39.2 years for females. For every 100 females there are 96.8 males.