Oklahoma State Highway 5

The western SH-5 begins at U.S. Highway 62 in Gould, Oklahoma and runs south until just past Lincoln, where it turns east. It then ends at State Highway 6 in Eldorado, just seven miles (11 km) north of the Texas border.

The western SH-5 was once known as SH-90.

Both the now-separate western and eastern sections of SH-5 were formerly part of a continuous SH-5 across Southwest Oklahoma. From 1958 to 1969, SH-5 continued east from Eldorado over an unpaved roadway to a junction with US-283 east of Elmer, and then turned north on a route shared with US-283 to the current west terminus of the eastern SH-5 at its junction with US-283 south of Altus and west of Tipton and continued east over the current eastern SH-5. The former Eldorado to Elmer section of SH-5 was removed from the state highway system in 1969 and continues in use as a county road under the jurisdiction of Jackson County.

The eastern SH-5 starts between Altus and Elmer at US-283. It heads east from here to Tipton, where it turn south and SH-5C splits off. South of Tipton, SH-5 turns east again to intersect U.S. Highway 183 in Frederick. 19 miles (30.5 km) later, it has a two-mile (3.2 km) concurrency with State Highway 36. The highway splits off to the east from here, sharing a three-mile (4.8 km) concurrency with US-277/281 and an interchange with Interstate 44 (which is also the Walters toll plaza of the H.E. Bailey Turnpike).

Five miles (8 km) east of where this three-route concurrency breaks up, SH-5 turns south in Walters, with the mainline being taken over by State Highway 53. SH-5 heads east again toward Temple, where it has a brief concurrency with State Highway 65, and then turns southeast to pass through Hastings before ending at US-70 in Waurika.