| City : | Martinsburg Town |
| County : | Audrain County, Richland County |
| State : | Missouri (MO) |
| | |
| Land Area : | 0.27 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 39.1009841 |
| Longitude : | -91.6473732 |
| | |
| Population (2010): | 304 |
| Population Estimate (2012) : | 324 |
| Population Density : | 1,138.11/sq mi |
| Housing Units (2012) : | 152 |
| Median Household Income (2012) : | $41,250 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $56,667 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $98,800 (Missouri : $138,400, USA : $181,400) |