State highway in Kansas, United States
K-31 is a 134-mile (216 km) long state highway in the U.S. state of Kansas. K-31 is signed as east–west from US-69 in Fulton to US-59 west of Kincaid and is signed as north–south from US-59 west of Kincaid to K-99 west of Harveyville. K-31 runs diagonally southeast–northwest, connecting small towns in east-central Kansas.
- ^ Rand McNally and Company (1927). "Kansas" (Map). Rand McNally Auto Road Atlas of the United States and Ontario, Quebec, and the Maritime Provinces of Canada, with a Brief Description of the National Parks and Monuments. 1:1,600,000. Chicago: Rand McNally and Company. pp. 54–55. OCLC 2078375 – via Rumsey Collection.