Counties Passed through: Pratt
Despite its short length, K-64 was designated as an original Kansas Highway to serve the headquarters of the Fish and Game Commission. It was gravel by 1936 and hard surfaced by 1937.
K-64 was removed from the state highway system July 10, 2015. Pratt County agreed to take over the highway as part of the project to widen US 54-400 east of Pratt to a 4-lane expressway. The headquarters of the Fish and Game Commission is now known as the operations office of its successor, the Kansas Department of Wildlife, Parks, and Tourism.
As of April 2017, it is the most recent highway to be turned back in its entirety.