| City : | Mount Vernon City |
| County : | Lawrence County, Montgomery County |
| State : | Missouri (MO) |
| | |
| Land Area : | 3.87 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 37.1054834 |
| Longitude : | -93.8195585 |
| | |
| Population (2010): | 4,575 |
| Population Estimate (2012) : | 4,564 |
| Population Density : | 1,183.66/sq mi |
| Housing Units (2012) : | 2,013 |
| Median Household Income (2012) : | $35,750 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $43,722 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $87,500 (Missouri : $138,400, USA : $181,400) |