
Dennis Port
- County:
- Barnstable County
- County Seat:
- No
- Area (mi²):
- 3.038
- State:
- Massachusetts
Dennis Port is a CDP located in Barnstable County, Massachusetts. Dennis Port has a 2025 population of 3,334. Dennis Port is currently growing at a rate of 0.33% annually but its population has decreased by -5.36% since the most recent census, which recorded a population of 3,523 in 2020.
The average household income in Dennis Port is $79,682 with a poverty rate of 18.9%. The median age in Dennis Port is 58.3 years: 58.4 years for males, and 57 years for females.