| Illinois Department of Transportation (IDOT) | Statewide | 39.80172 | -89.64371 | 215 |
| Illinois Department of Transportation (IDOT) | District 1 - Schaumburg (Chicago Metro Area) | 42.00033 | -88.01697 | 51.86 |
| Illinois Department of Transportation (IDOT) | District 2 - Dixon | 42.04929 | -89.49463 | 70.43 |
| Illinois Department of Transportation (IDOT) | District 3 - Ottawa | 41.03793 | -88.30811 | 58.93 |
| Illinois Department of Transportation (IDOT) | District 4 - Peoria | 40.7847 | -90.44495 | 52.3 |
| Illinois Department of Transportation (IDOT) | District 5 - Paris | 39.73254 | -88.41248 | 69.58 |
| Illinois Department of Transportation (IDOT) | District 6 - Springfield | 39.74943 | -90.17578 | 78.69 |
| Illinois Department of Transportation (IDOT) | District 7 - Effingham | 38.58682 | -88.51685 | 60 |
| Illinois Department of Transportation (IDOT) | District 8 - Fairview Heights | 38.78835 | -89.93408 | 66.33 |
| Illinois Department of Transportation (IDOT) | District 9 - Carbondale | 37.62293 | -88.90137 | 54.51 |
