Chatham
- County:
- Morris County
- County Seat:
- No
- Area (mi²):
- 2.343
- State:
- New Jersey
Chatham is a borough located in Morris County, New Jersey. Chatham has a 2026 population of 10,062. Chatham is currently growing at a rate of 7.82% annually and its population has increased by 9.48% since the most recent census, which recorded a population of 9,191 in 2020.