Concho is a rural unincorporated community in Canadian County, Oklahoma.U.S. Geological Survey Geographic Names Information System: Concho, Oklahoma It is north of the Concho Indian Boarding School. The post office opened April 20, 1915. The ZIP code is 73022. The school and post office were named for Indian agent, Charles E. Shell. It is the headquarters of the Cheyenne and Arapaho Tribes.
- ^ Shirk, George H. Oklahoma Place Names. Norman: University of Oklahoma Press, 1987. ISBN 0-8061-2028-2.
- ^ Oklahoma Indian Affairs. Oklahoma Indian Nations Pocket Pictorial Directory. 2008:7