
Cliffside Park
- County:
- Bergen County
- County Seat:
- No
- Area (mi²):
- 0.956
- State:
- New Jersey
Cliffside Park is a borough located in Bergen County, New Jersey. Cliffside Park has a 2025 population of 25,527. Cliffside Park is currently declining at a rate of -0.08% annually and its population has decreased by -0.42% since the most recent census, which recorded a population of 25,634 in 2020.
The average household income in Cliffside Park is $125,224 with a poverty rate of 11.29%. The median age in Cliffside Park is 41 years: 38.4 years for males, and 42.3 years for females.