
Greenwich township
- County:
- Cumberland County
- County Seat:
- No
- Area (mi²):
- 10.581
- State:
- New Jersey
Greenwich township is located in Cumberland County, New Jersey. Greenwich township has a 2025 population of 5,521. Greenwich township is currently growing at a rate of 0.16% annually and its population has increased by 0.99% since the most recent census, which recorded a population of 5,467 in 2020.
The average household income in Greenwich township is $192,809 with a poverty rate of 2.35%. The median age in Greenwich township is 40.5 years: 41.3 years for males, and 40.1 years for females.