West Endpoint:
East Endpoint:
Counties Passed through: Wilson, Montgomery
Junction US 75 near Neodeshea
East Endpoint:
Junction US 169 south of Thayer
Counties Passed through: Wilson, Montgomery
History
K-37 was re-established in southeast Kansas as a re-designation of K-34 in 1937. K-37 was removed from the state highway system and turned back to the counties in 1998, when the new US 400 opened on a new alignment nearby.