
Marblehead
- County:
- Essex County
- County Seat:
- No
- Area (mi²):
- 4.379
- State:
- Massachusetts
Marblehead is a CDP located in Essex County, Massachusetts. Marblehead has a 2025 population of 20,486. Marblehead is currently growing at a rate of 0.23% annually but its population has decreased by -0.21% since the most recent census, which recorded a population of 20,530 in 2020.
The average household income in Marblehead is $233,774 with a poverty rate of 3.75%. The median age in Marblehead is 49.1 years: 47.8 years for males, and 49.9 years for females.