| Zip Code : | 62243 |
| City : | Belleville city, Freeburg village, Mascoutah city, Smithton village |
| County : | St. Clair County |
| State : | Illinois (IL) |
| | |
| Land Area : | 52.62 sq mi |
| Water Area : | 2.00 sq mi |
| Latitude : | 38.4201290 |
| Longitude : | -89.8894875 |
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| Population (2010): | 5,910 |
| Population Estimate (2012) : | 5,870 |
| Population Density : | 112.31/sq mi |
| Housing Units (2012) : | 2,408 |
| Median Household Income (2012) : | $69,211 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $84,430 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $179,300 (Illinois : $190,800, USA : $181,400) |