Mercerville is located in New Jersey. Mercerville, New Jersey has a population of 22,221. Mercerville is less family-centric than the surrounding county with 21% households with children. The county percentage for households with children is 29%.
The median household income in Mercerville, New Jersey is $85,857. The median household income for the surrounding county is $83,234 compared to the national median of $66,222. The median age of people living in Mercerville is 44.7 years.
The average high temperature in July is 85 degrees, with an average low temperature in January of 21.5 degrees. The annual precipitation is 48.25.