New Gretna is located in New Jersey. New Gretna, New Jersey has a population of 279. New Gretna is more family-centric than the surrounding county with 48.49% of the households containing married families with children. The county average for households married with children is 32.09%.
The median household income in New Gretna, New Jersey is $105,938. The median household income for the surrounding county is $95,935 compared to the national median of $69,021. The median age of people living in New Gretna is 37.9 years.
The average high temperature in July is 86.9 degrees, with an average low temperature in January of 23.2 degrees. The average rainfall is approximately 47 inches per year, with 14 inches of snow per year.
