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 2026 population of 835. Marblehead is currently declining at a rate of -0.36% annually and its population has decreased by -1.65% since the most recent census, which recorded a population of 849 in 2020.
The median household income in Marblehead is $96,250 with a poverty rate of 2.3%. The median age in Marblehead is 61.2 years: 60.5 years for males, and 61.9 years for females. For every 100 females there are 106.1 males.