
Caldwell
- County:
- Essex County
- County Seat:
- No
- Area (mi²):
- 1.178
- State:
- New Jersey
Caldwell is a borough located in Essex County, New Jersey. Caldwell has a 2025 population of 8,732. Caldwell is currently declining at a rate of -0.58% annually and its population has decreased by -2.83% since the most recent census, which recorded a population of 8,986 in 2020.
The average household income in Caldwell is $146,736 with a poverty rate of 5.87%. The median age in Caldwell is 38.5 years: 38 years for males, and 40.4 years for females.