| City : | St. Martins City |
| County : | Cole County |
| State : | Missouri (MO) |
| Land Area : | 1.89 sq mi |
| Water Area : | 0.01 sq mi |
| Latitude : | 38.5959038 |
| Longitude : | -92.3313510 |
| Population (2010): | 1,140 |
| Population Estimate (2012) : | 1,136 |
| Population Density : | 603.20/sq mi |
| Housing Units (2012) : | 474 |
| Median Household Income (2012) : | $63,393 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $71,354 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $166,600 (Missouri : $138,400, USA : $181,400) |