| City : | Effingham City |
| County : | Effingham County, Washington County |
| State : | Illinois (IL) |
| | |
| Land Area : | 9.86 sq mi |
| Water Area : | 0.06 sq mi |
| Latitude : | 39.1197496 |
| Longitude : | -88.5508960 |
| | |
| Population (2010): | 12,328 |
| Population Estimate (2012) : | 12,297 |
| Population Density : | 1,249.77/sq mi |
| Housing Units (2012) : | 5,696 |
| Median Household Income (2012) : | $42,421 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $58,965 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $111,000 (Illinois : $190,800, USA : $181,400) |