Martinsville is located in New Jersey. Martinsville, New Jersey has a population of 11,980. Martinsville is more family-centric than the surrounding county with 38.87% of the households containing married families with children. The county average for households married with children is 37.76%.
The median household income in Martinsville, New Jersey is $177,045. The median household income for the surrounding county is $121,695 compared to the national median of $69,021. The median age of people living in Martinsville is 45.3 years.
The average high temperature in July is 85.7 degrees, with an average low temperature in January of 20.2 degrees. The average rainfall is approximately 47.5 inches per year, with 22.9 inches of snow per year.