Belmont County | |
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Motto(s): | |
![]() Location within the U.S. state of Ohio | |
![]() Ohio's location within the U.S. | |
Coordinates: 40°01′N 80°59′W / 40.02°N 80.99°W | |
Country | ![]() |
State | ![]() |
Founded | September 7, 1801 (created) November 7, 1801 (organized) |
Named for | "beautiful mountain" in French |
Seat | St. Clairsville |
Largest city | Martins Ferry |
Area | |
• Total | 541.27 sq mi (1,401.9 km2) |
• Land | 532.13 sq mi (1,378.2 km2) |
• Water | 9.14 sq mi (23.7 km2) 1.7% |
Population (2020) | |
• Total | 66,497 ![]() |
• Density | 120/sq mi (50/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (EDT) |
Congressional district | 6th |
Website | www |
Belmont County is a county in the U.S. state of Ohio. As of the 2020 United States census, the population was 66,497.[2] Its county seat is St. Clairsville, while its largest city is Martins Ferry. The county was created on September 7, 1801, and organized on November 7, 1801.[3] It takes its name from the French for "beautiful mountain".[4]
Belmont County is part of the Wheeling metropolitan area.