Cresskill
- County:
- Bergen County
- County Seat:
- No
- Area (mi²):
- 2.065
- State:
- New Jersey
Cresskill is a borough located in Bergen County, New Jersey. Cresskill has a 2026 population of 9,311. Cresskill is currently growing at a rate of 1.2% annually and its population has increased by 1.95% since the most recent census, which recorded a population of 9,133 in 2020.