
Closter
- County:
- Bergen County
- County Seat:
- No
- Area (mi²):
- 3.16
- State:
- New Jersey
Closter is a borough located in Bergen County, New Jersey. Closter has a 2025 population of 8,531. Closter is currently declining at a rate of -0.07% annually and its population has decreased by -0.37% since the most recent census, which recorded a population of 8,563 in 2020.
The average household income in Closter is $244,506 with a poverty rate of 7.18%. The median age in Closter is 40.3 years: 35.5 years for males, and 43 years for females.