Belmont County
County in Ohio
Belmont County is a county in the U.S. state of Ohio. As of the 2020 United States census, the population was 66,497. Its county seat is St. Clairsville, while its largest city is Martins Ferry. The county was created on September 7, 1801, and... Wikipedia
Cities: Belmont, Saint Clairsville, Bellaire, and more
County seat: Saint Clairsville
Congressional district: 6th
Founded: September 7, 1801 (created); November 7, 1801 (organized)
Largest city: Martins Ferry
Named for: "beautiful mountain" in French