
Chatham
- County:
- Barnstable County
- County Seat:
- No
- Area (mi²):
- 2.637
- State:
- Massachusetts
Chatham is a CDP located in Barnstable County, Massachusetts. Chatham has a 2025 population of 1,691. Chatham is currently growing at a rate of 1.08% annually and its population has increased by 9.1% since the most recent census, which recorded a population of 1,550 in 2020.
The average household income in Chatham is $162,162 with a poverty rate of 10.05%. The median age in Chatham is 67.4 years: 68.2 years for males, and 67.1 years for females.