
Bethlehem township
- County:
- Hunterdon County
- County Seat:
- No
- Area (mi²):
- 20.683
- State:
- New Jersey
Bethlehem township is located in Hunterdon County, New Jersey. Bethlehem township has a 2025 population of 3,770. Bethlehem township is currently growing at a rate of 0.19% annually and its population has increased by 1.02% since the most recent census, which recorded a population of 3,732 in 2020.
The average household income in Bethlehem township is $198,067 with a poverty rate of 5.14%. The median age in Bethlehem township is 45.8 years: 45.1 years for males, and 46.4 years for females.