| Zip Code : | 62471 |
| City : | Vandalia city |
| County : | Fayette County |
| State : | Illinois (IL) |
| | |
| Land Area : | 136.90 sq mi |
| Water Area : | 1.51 sq mi |
| Latitude : | 38.9461675 |
| Longitude : | -89.1301299 |
| | |
| Population (2010): | 10,233 |
| Population Estimate (2012) : | 9,771 |
| Population Density : | 74.75/sq mi |
| Housing Units (2012) : | 4,027 |
| Median Household Income (2012) : | $51,429 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $60,019 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $85,800 (Illinois : $190,800, USA : $181,400) |