| City : | Mount Olive City |
| County : | Macoupin County, Mason County |
| State : | Illinois (IL) |
| | |
| Land Area : | 1.15 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 39.0726562 |
| Longitude : | -89.7278850 |
| | |
| Population (2010): | 2,099 |
| Population Estimate (2012) : | 2,150 |
| Population Density : | 1,820.20/sq mi |
| Housing Units (2012) : | 984 |
| Median Household Income (2012) : | $45,250 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $61,563 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $74,600 (Illinois : $190,800, USA : $181,400) |