| Zip Code : | 62257 |
| City : | Lenzburg village, Marissa village, St. Libory village |
| County : | Washington County, Randolph County, St. Clair County |
| State : | Illinois (IL) |
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| Land Area : | 73.63 sq mi |
| Water Area : | 1.05 sq mi |
| Latitude : | 38.2848736 |
| Longitude : | -89.7287087 |
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| Population (2010): | 3,214 |
| Population Estimate (2012) : | 3,430 |
| Population Density : | 43.65/sq mi |
| Housing Units (2012) : | 1,493 |
| Median Household Income (2012) : | $51,933 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $57,440 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $93,800 (Illinois : $190,800, USA : $181,400) |