| City : | Mount Vernon City |
| County : | Clay County, Knox County |
| State : | Ohio (OH) |
| Land Area : | 9.41 sq mi |
| Water Area : | 0.18 sq mi |
| Latitude : | 40.3851799 |
| Longitude : | -82.4745625 |
| Population (2010): | 16,990 |
| Population Estimate (2012) : | 16,942 |
| Population Density : | 1,805.95/sq mi |
| Housing Units (2012) : | 7,836 |
| Median Household Income (2012) : | $35,417 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $46,888 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $104,600 (Ohio : $133,700, USA : $181,400) |
Mount Vernon City Zip Codes
| 43050 (29,050) |