| City : | Old Mill Creek Village |
| County : | Lake County |
| State : | Illinois (IL) |
| Land Area : | 10.63 sq mi |
| Water Area : | 0.17 sq mi |
| Latitude : | 42.4331332 |
| Longitude : | -87.9821999 |
| Population (2010): | 178 |
| Population Estimate (2012) : | 144 |
| Population Density : | 16.74/sq mi |
| Housing Units (2012) : | 87 |
| Median Household Income (2012) : | $72,857 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $80,833 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $875,000 (Illinois : $190,800, USA : $181,400) |