what county is martins ferry ohio in
Martins Ferry, OH. Online Offers. Martins Ferry is a city located in Belmont County, Ohio, United States, on the Ohio River. A part of the Wheeling, West Virginia Metropolitan Statistical Area, it is the largest city in Belmont County. The population was 6,915 at the 2010 census. Martins Ferry enjoys the honor of being the oldest permanent settlement in the state of Ohio, having been settled at least as early as 1779.