State speed limit chart — Oklahoma Permit Test

Unless otherwise posted, the Oklahoma speed limit on controlled access highways is 75 mph.

Controlled access highways have no cross traffic or driveways, which is why they carry a higher limit.

Controlled access highways 75 mph

Unless otherwise posted, the Oklahoma speed limit on turnpikes is 80 mph.

Even at the state's highest limit, the Basic Speed Rule still applies when weather or traffic turn bad.

Turnpikes 80 mph

Unless otherwise posted, the Oklahoma speed limit on undivided state highways is 65 mph.

With no barrier between you and oncoming traffic, an undivided road is held to a lower limit than a divided one.

Undivided State Highways 65 mph

Unless otherwise posted, the Oklahoma speed limit on county roads is 55 mph.

County roads are often narrow, with farm traffic and driveways, so they carry a lower limit.

County roads 55 mph

Unless otherwise posted, the Oklahoma speed limit on highways within state parks or wildlife refuges is 35 mph.

Parks and refuges have hikers, campers and animals near the road, and they need you able to stop.

Highways within state parks or wildlife refuges 35 mph

Unless otherwise posted, the speed limit in a properly marked school zone on any highway outside of a municipality is 25 mph.

Children near a school can dart into the road, and a car at low speed can stop before it reaches them.

School zones on any highway outside of a municipality in a properly marked zone 25 mph

Unless otherwise posted, what is the speed limit on an Oklahoma controlled access highway?

75 mph. Controlled access highways have no cross traffic or driveways, which is why they carry a higher limit. Oklahoma Driver Manual, p.41: “Controlled access highways 75 mph”