
Greenwich township
- County:
- Cumberland County
- County Seat:
- No
- Area (mi²):
- 8.987
- State:
- New Jersey
Greenwich township is located in Cumberland County, New Jersey. Greenwich township has a 2025 population of 5,035. Greenwich township is currently growing at a rate of 0.42% annually and its population has increased by 2.38% since the most recent census, which recorded a population of 4,918 in 2020.
The average household income in Greenwich township is $111,009 with a poverty rate of 6.61%. The median age in Greenwich township is 44.1 years: 39.9 years for males, and 49.7 years for females.