| City : | St. Peters City |
| County : | St. Charles County |
| State : | Missouri (MO) |
| | |
| Land Area : | 22.37 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 38.7835202 |
| Longitude : | -90.6050746 |
| | |
| Population (2010): | 52,575 |
| Population Estimate (2012) : | 53,190 |
| Population Density : | 2,350.59/sq mi |
| Housing Units (2012) : | 21,717 |
| Median Household Income (2012) : | $70,859 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $83,921 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $170,500 (Missouri : $138,400, USA : $181,400) |