Darling Range comprises all or parts of the localities of Ashendon, Bedfordale, Byford, Cardup, Darling Downs, Hopeland, Jarrahdale, Karragullen, Karrakup, Kelmscott, Keralup, Keysbrook, Mardella, Mt Richon, Mundijong, Oakford, Oldbury, Roleystone, Serpentine, Whitby and Wungong.