Located in the Southwest Region of Kansas, running from west to east and comprised primarily in ten counties. The counties are; Stanton County, Morton County, Grant County, Haskell County, Gray County, Meade County, Ford County, Clark County, Kiowa County, Comanche County.
The minor river basins or watersheds in the Cimarron River Drainage Basin are; Cimarron River, Bear, Sand and Crooked.
