 | Airports: United States: Williams Airpark | |
| Airport name: | Williams Airpark |
| Airport code (ICAO): | 30LL |
| Latitude: | 39.7542 |
| Longitude: | -90.3654 |
| Height above sea: | 614 ft / 187 m |
| Country: | United States - North America |
| Region: | Illinois |
| City: | Chapin |
| Airlines scheduled services: | no |