Oklahoma State Highway 20

State Highway 20
Route information
Maintained by ODOT
Length	142.7 mi[1] (229.7 km)
Major junctions
West end	SH-18 near Ralston
Major intersections	SH-99 in Hominy US 75 in Collinsville I-44 / Will Rogers Turnpike in Claremore US 69 in Pryor US 59 / SH-10 in Jay
East end	Route 43 at the Missouri state line (concurrent with AR 43)
Location
Country	United States
State	Oklahoma
Counties	Osage, Tulsa, Rogers, Mayes, Delaware, Benton (AR)
Highway system
Oklahoma State Highway System Interstate US State Turnpikes
← SH-19 → SH-22

State Highway 20 (abbreviated SH-20) is a highway in northeastern Oklahoma. Its eastern terminus is at the corner of Oklahoma, Arkansas, and Missouri near Southwest City, Missouri; its western terminus is at State Highway 18 near Ralston. The highway runs a total length of 142.7 miles (229.7 km). It has no lettered spur routes.