[1] It is located northeast of Pretty Prairie between Castleton Road and North Fork Ninnescah River.

Castleton was a station and shipping point on the Hutchinson & Blackwell division of the Atchison, Topeka and Santa Fe Railway.

[citation needed] The post office was established December 6, 1872, remained in operation until it was discontinued on June 28, 1957.

[3] In 1971, the post office building was moved to the Barton County Historical Society Museum and Village in Great Bend, Kansas.

Castleton was the setting for "Sevillinois, Illinois 1895" in the movie Wait Till the Sun Shines, Nellie filmed in 1952.