
Marblehead
- County:
- Ottawa County
- County Seat:
- No
- Area (mi²):
- 3.17
- State:
- Ohio
Marblehead is a village located in Ottawa County, Ohio. Marblehead has a 2025 population of 831. Marblehead is currently declining at a rate of -0.48% annually and its population has decreased by -2.35% since the most recent census, which recorded a population of 851 in 2020.
The average household income in Marblehead is $127,762 with a poverty rate of 3.25%. The median age in Marblehead is 55.8 years: 56.7 years for males, and 52.3 years for females.