| City : | Fairmont City Village |
| County : | Madison County, St. Clair County |
| State : | Illinois (IL) |
| | |
| Land Area : | 6.20 sq mi |
| Water Area : | 0.39 sq mi |
| Latitude : | 38.6464632 |
| Longitude : | -90.1001625 |
| | |
| Population (2010): | 2,635 |
| Population Estimate (2012) : | 2,596 |
| Population Density : | 424.93/sq mi |
| Housing Units (2012) : | 865 |
| Median Household Income (2012) : | $32,260 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $33,472 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $60,600 (Illinois : $190,800, USA : $181,400) |