
Yarmouth
- County:
- Barnstable County
- County Seat:
- No
- Area (mi²):
- 24.156
- State:
- Massachusetts
Yarmouth is located in Barnstable County, Massachusetts. Yarmouth has a 2025 population of 24,855. Yarmouth is currently declining at a rate of -0.5% annually and its population has decreased by -0.55% since the most recent census, which recorded a population of 24,992 in 2020.
The average household income in Yarmouth is $113,573 with a poverty rate of 7.73%. The median age in Yarmouth is 55.5 years: 51.7 years for males, and 58.3 years for females.