Belmont County OH United States
| County FIPS | 39013 |
| Largest City | Martins Ferry |
| State | Ohio |
| Latitude | 40.0158 |
| Longitude | -80.9885 |
| Population | 65,473 |
| Density | 123.08 people per square mile |
| Time Zone | America/New York |
Median household: $57,017
Median individual: $31,224
Mode: 90.9% White
Median house value: $150,422.0
Median: 44.1 years old
With at least college degree: 18.9%
With STEM degree: 38.5%
Never married: 30.5%
Unemployed: 5.4%
All data comes from the SimpleMaps US Counties Database, 2026.
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