
Montclair township
- County:
- Essex County
- County Seat:
- No
- Area (mi²):
- 6.238
- State:
- New Jersey
Montclair township is located in Essex County, New Jersey. Montclair township has a 2025 population of 39,671. Montclair township is currently declining at a rate of -0.16% annually and its population has decreased by -0.39% since the most recent census, which recorded a population of 39,825 in 2020.
The average household income in Montclair township is $243,751 with a poverty rate of 6.38%. The median age in Montclair township is 39.6 years: 37.3 years for males, and 42.1 years for females.