| City : | Wentzville City |
| County : | St. Charles County |
| State : | Missouri (MO) |
| | |
| Land Area : | 19.96 sq mi |
| Water Area : | 0.02 sq mi |
| Latitude : | 38.8157691 |
| Longitude : | -90.8692822 |
| | |
| Population (2010): | 29,070 |
| Population Estimate (2012) : | 28,879 |
| Population Density : | 1,456.13/sq mi |
| Housing Units (2012) : | 10,305 |
| Median Household Income (2012) : | $72,882 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $82,684 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $198,500 (Missouri : $138,400, USA : $181,400) |