- Location: Williamson County, Illinois
- Legal status: Village
- Population: 224 (Change since 1990: -4.7%)
- Founded: by John Colp
- Name origin: John Colp
- Previously known as: Colpville
- Located west of Herrin
- Latitude: 37°48'19" N (+37.8053)
- Longitude: 89°04'48" W (-89.0800)
- Elevation: 400 feet above sea level
- Public Land Survey: T. 8 S., R. 1 E., Sec. 22
- Civil township: Blairsville
- Land area: 0.14 square miles (90.9 acres)
As the crow flies, Colp is...
| Year | Population | Percent change |
|---|
| 1990 | 235 | -- |
| 2000 | 224 | -4.7% |