
Stanhope
- County:
- Sussex County
- County Seat:
- No
- Area (mi²):
- 1.838
- State:
- New Jersey
Stanhope borough is located in Sussex County, New Jersey. Stanhope borough has a 2025 population of 3,609. Stanhope borough is currently growing at a rate of 0.47% annually and its population has increased by 2.62% since the most recent census, which recorded a population of 3,517 in 2020.
The average household income in Stanhope borough is $132,356 with a poverty rate of 2.55%. The median age in Stanhope borough is 40.6 years: 38.3 years for males, and 43.8 years for females.