New Mexico State Road 231

State Road 231
Route information
Maintained by NMDOT
Length	4.995 mi[1] (8.039 km)
Major junctions
West end	NM 278 near Tucumcari
East end	NM 469 near Grady
Location
Country	United States
State	New Mexico
Counties	Quay
Highway system
New Mexico State Highway System Interstate US State Scenic
← NM 230 → NM 232

State Road 231 (NM 231) is a 4.995-mile-long (8.039 km) state highway in the US state of New Mexico. NM 231's western terminus is at NM 278 southeast of Tucumcari, and the eastern terminus is at NM 469 north of Grady.