Orbit Illinois Interstate speed limits
The posted limits on every Interstate in Illinois, measured along each road: the limit you'll see most, and the range from the slowest stretch to the fastest. The highest Interstate limit in Illinois is 70 mph.
| Interstate | Usually | Range |
|---|---|---|
| I-24 | 70 mph | 70 mph |
| I-39 | 70 mph | 70 mph |
| I-41 | 70 mph | 70 mph |
| I-55 | 70 mph | 50 to 70 mph |
| I-57 | 70 mph | 55 to 70 mph |
| I-64 | 70 mph | 50 to 70 mph |
| I-70 | 70 mph | 55 to 70 mph |
| I-72 | 70 mph | 55 to 70 mph |
| I-74 | 70 mph | 55 to 70 mph |
| I-80 | 70 mph | 55 to 70 mph |
| I-88 | 70 mph | 55 to 70 mph |
| I-90 | 70 mph | 45 to 70 mph |
| I-94 | 55 mph | 45 to 70 mph |
| I-155 | 70 mph | 70 mph |
| I-172 | 70 mph | 70 mph |
| I-180 | 70 mph | 70 mph |
| I-190 | 55 mph | 55 mph |
| I-255 | 65 mph | 60 to 65 mph |
| I-270 | 65 mph | 55 to 65 mph |
| I-280 | 70 mph | 70 mph |
| I-290 | 55 mph | 55 to 60 mph |
| I-294 | 55 mph | 55 to 60 mph |
| I-355 | 55 mph | 55 to 70 mph |
| I-474 | 70 mph | 70 mph |
Posted limits as of October 2026, from state and federal road data and © OpenStreetMap contributors, measured by length of road. Work zones, weather and signs can set a lower limit; always follow the posted sign.
Other states
AlabamaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaIdahoIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming
Orbit shows the limit for the road you're on · coming soon to iPhone and CarPlaySee Orbit SI