| City : | Martins Ferry City |
| County : | Belmont County |
| State : | Ohio (OH) |
| Land Area : | 2.33 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 40.1053162 |
| Longitude : | -80.7285737 |
| Population (2010): | 6,915 |
| Population Estimate (2012) : | 6,907 |
| Population Density : | 2,969.53/sq mi |
| Housing Units (2012) : | 3,431 |
| Median Household Income (2012) : | $30,691 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $46,200 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $72,800 (Ohio : $133,700, USA : $181,400) |