| City : | St. Jacob Village |
| County : | Madison County |
| State : | Illinois (IL) |
| | |
| Land Area : | 0.76 sq mi |
| Water Area : | 0.01 sq mi |
| Latitude : | 38.7189354 |
| Longitude : | -89.7680576 |
| | |
| Population (2010): | 1,098 |
| Population Estimate (2012) : | 1,412 |
| Population Density : | 1,438.98/sq mi |
| Housing Units (2012) : | 442 |
| Median Household Income (2012) : | $77,500 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $90,074 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $155,900 (Illinois : $190,800, USA : $181,400) |