- Located at junction IL 4 and IL 151 northwest of Murphysboro
- Latitude: 37°53'18" N (+37.8883)
- Longitude: 89°29'41" W (-89.4947)
- Elevation: 605 feet above sea level
- Public Land Survey: T. 7 S., R. 4 W., Sec. 25
- Civil township: Bradley
- Land area: 1.1 square miles
- Water area: 0.01 square miles (3.7 acres)
As the crow flies, Ava is...
| Year | Population | Percent change |
|---|
| 1990 | 674 | -- |
| 2000 | 662 | -1.8% |