| County : | Massac County |
| State : | Illinois (IL) |
| Land Area : | 237.22 sq mi |
| Water Area : | 4.60 sq mi |
| Latitude : | 37.2161190 |
| Longitude : | -88.7056578 |
| Population (2010): | 15,429 |
| Population Estimate (2012) : | 15,370 |
| Population Density : | 65.04/sq mi |
| Housing Units (2012) : | 7,113 |
| Median Household Income (2012) : | $42,190 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $55,529 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $82,700 (Illinois : $190,800, USA : $181,400) |
Massac County Cities / Towns
| Brookport City (984) | Joppa Village (360) | Metropolis City (6,537) |
Massac County Zip Codes
| 62908 (467) | 62910 (2,865) | 62941 (808) |
| 62943 (715) | 62953 (360) | 62956 (869) |
| 62960 (11,603) |