
Rosenhayn
- County:
- Cumberland County
- County Seat:
- No
- Area (mi²):
- 2.647
- State:
- New Jersey
Rosenhayn is a CDP located in Cumberland County, New Jersey. Rosenhayn has a 2025 population of 1,611. Rosenhayn is currently growing at a rate of 2.22% annually and its population has increased by 21.95% since the most recent census, which recorded a population of 1,321 in 2020.
The average household income in Rosenhayn is $103,033 with a poverty rate of 3.56%. The median age in Rosenhayn is 47.5 years: 44.5 years for males, and 51.6 years for females.