- Runs east-west across the northern part of the state, connecting Chicago to the Quad Cities.
2. Interstate 57
- Runs north-south through the center of the state, connecting Chicago to southern Illinois and Missouri.
3. Interstate 72
- Runs east-west across the central part of the state, connecting Springfield to Champaign and Decatur.
4. Interstate 290
- A beltway around the western suburbs of Chicago.
5. Interstate 39
- Runs north-south through the western part of the state, connecting Rockford to Bloomington and Springfield.