| City : | Clayton City |
| County : | Dupage County, St. Louis County |
| State : | Missouri (MO) |
| | |
| Land Area : | 2.48 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 38.6442905 |
| Longitude : | -90.3301281 |
| | |
| Population (2010): | 15,939 |
| Population Estimate (2012) : | 15,740 |
| Population Density : | 6,435.94/sq mi |
| Housing Units (2012) : | 6,321 |
| Median Household Income (2012) : | $88,432 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $132,581 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $615,000 (Missouri : $138,400, USA : $181,400) |