Greenwich is located in New Jersey. Greenwich, New Jersey has a population of 772. Greenwich is less family-centric than the surrounding county with 20% households with children. The county percentage for households with children is 30%.
The median household income in Greenwich, New Jersey is $84,423. The median household income for the surrounding county is $57,049 compared to the national median of $66,222. The median age of people living in Greenwich is 49.9 years.
The average high temperature in July is 85.7 degrees, with an average low temperature in January of 24.2 degrees. The annual precipitation is 44.87.