Mount Joy is located in Pennsylvania. Mount Joy, Pennsylvania has a population of 8,398. Mount Joy is less family-centric than the surrounding county with 19% households with children. The county percentage for households with children is 28%.
The median household income in Mount Joy, Pennsylvania is $62,439. The median household income for the surrounding county is $64,285 compared to the national median of $61,963. The median age of people living in Mount Joy is 40 years.
The average high temperature in July is 85.4 degrees, with an average low temperature in January of 20.8 degrees. The annual precipitation is 43.4.