Calculate route from Herrin (Illinois, United States) to Troy (Illinois, United States).
The flight distance (as the crow flies) between Herrin and Troy is 127.1 km.
Roadmap (route) to go from Herrin to Troy detailed above, you can also see the course layout on the map.
While doing trip Herrin - Troy by car, the calculated route ends at a distance , or more straight.
| Country flag | ![]() |
| Location | Troy |
| State | Illinois |
| County | Madison County |
| Country | United States |
| Country code / ISO 2 | US |
| Latitude | 38.7292100 |
| Longitude | -89.8831500 |
| Altitude | 171 meters |
| Time zone | America/Chicago |