Orbit Super Intelligence

I-380 speed limit in California

55 mphUsual limit · 35 to 55 mph along the way

Mostly 55 mph: about 78% of I-380 in California is posted at 55. Limits run from 35 to 55 mph along the way.

How much of I-380 is at each limit

55 mph78%
35 mph22%

Open road

Mostly 55 mph

Through cities and towns

Mostly 55 mph

Questions

What is the speed limit on I-380 in California?

Mostly 55 mph: about 78% of I-380 in California is posted at 55. Limits run from 35 to 55 mph along the way.

What is the highest speed limit on I-380 in California?

55 mph, on 78% of its length in California.

Can the limit be lower than this?

Yes. Work zones, bad weather and local signs can set a lower limit. The posted sign is always the limit.

How does Orbit know the limit?

Orbit uses state and federal road data and OpenStreetMap, and drivers confirm limits from the road. In the app, the limit for the road you are on shows on the map and in CarPlay.

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 Interstates in California

I-380 in other states

Orbit shows the limit for the road you're on · coming soon to iPhone and CarPlaySee Orbit SI