Langdon is an unincorporated community in Atchison County, Missouri. It is located about six miles southwest of Rock Port. Its post office has closed and mail now comes from Fairfax.
In the late nineteenth and early twentieth centuries, Langdon, situated on the banks of the Nishnabotna River, was a resort town complete with hotel and fishing boat rentals. It was also joined to nearby Rock Port, Missouri by a standard gauge railroad which delivered people from the town both to Langdon and to the Burlington Railroad depot situated in Langdon. The Burlington later became Burlington Northern, and which is now Burlington-Santa Fe, traveled between Omaha Nebraska and Kansas City Missouri. Burlington Santa Fe, hauling freight that is mostly coal, still passes through Langdon.
Coordinates: 40°21′23″N 95°34′47″W / 40.35639°N 95.57972°W / 40.35639; -95.57972
