- Located at the junction US 45 and IL 13 east of Murphysboro
- Latitude: 37°43'38" N (+37.7272)
- Longitude: 89°12'60" W (-89.2167)
- Elevation: 415 feet above sea level
- Civil township: Carbondale
- Land area: 11.9 square miles
- Water area: 0.25 square miles (159.2 acres)
As the crow flies, Carbondale is...
| Year | Population | Percent change |
|---|
| 1990 | 27,033 | -- |
| 2000 | 20,681 | -23.5% |