Belmont is a village in central Belmont County, Ohio, United States. The population was 414 at the 2020 census. It is part of the Wheeling metropolitan area. Belmont was originally known as Wrightstown, and under the latter name was laid out in 1808 by Joseph Wright. The name was switched to Belmont in anticipation of being the county seat of B…Belmont is a village in central Belmont County, Ohio, United States. The population was 414 at the 2020 census. It is part of the Wheeling metropolitan area. Belmont was originally known as Wrightstown, and under the latter name was laid out in 1808 by Joseph Wright. The name was switched to Belmont in anticipation of being the county seat of Belmont County. St. Clairsville, however, was given the honor of having Belmont County's center of government. The Baltimore and Ohio Railroad cut through the town until its dismantling in the 1980s.