
Marlboro township
- County:
- Monmouth County
- County Seat:
- No
- Area (mi²):
- 30.344
- State:
- New Jersey
Marlboro township is located in Monmouth County, New Jersey. Marlboro township has a 2025 population of 41,156. Marlboro township is currently declining at a rate of -0.29% annually and its population has decreased by -0.97% since the most recent census, which recorded a population of 41,560 in 2020.
The average household income in Marlboro township is $227,344 with a poverty rate of 3.77%. The median age in Marlboro township is 44.6 years: 45.9 years for males, and 43.8 years for females.