| City : | Gillespie City |
| County : | Macoupin County |
| State : | Illinois (IL) |
| Land Area : | 1.45 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 39.1254350 |
| Longitude : | -89.8172830 |
| Population (2010): | 3,319 |
| Population Estimate (2012) : | 3,308 |
| Population Density : | 2,281.66/sq mi |
| Housing Units (2012) : | 1,519 |
| Median Household Income (2012) : | $40,256 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $49,018 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $79,100 (Illinois : $190,800, USA : $181,400) |
Gillespie City Zip Codes
| 62033 (4,894) |