Orbit I-190 speed limit in South Dakota
Mostly 50 mph: about 48% of I-190 in South Dakota is posted at 50. Limits run from 45 to 60 mph along the way.
How much of I-190 is at each limit
Questions
What is the speed limit on I-190 in South Dakota?
Mostly 50 mph: about 48% of I-190 in South Dakota is posted at 50. Limits run from 45 to 60 mph along the way.
What is the highest speed limit on I-190 in South Dakota?
60 mph, on 40% of its length in South Dakota.
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.