| Zip Code : | 62223 |
| City : | Belleville city, Centreville city, East St. Louis city, Fairview Heights city, Millstadt village, Swansea village |
| County : | St. Clair County |
| State : | Illinois (IL) |
| | |
| Land Area : | 25.34 sq mi |
| Water Area : | 0.17 sq mi |
| Latitude : | 38.5359568 |
| Longitude : | -90.0594567 |
| | |
| Population (2010): | 17,560 |
| Population Estimate (2012) : | 17,786 |
| Population Density : | 692.94/sq mi |
| Housing Units (2012) : | 8,075 |
| Median Household Income (2012) : | $58,998 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $72,136 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $135,700 (Illinois : $190,800, USA : $181,400) |