The Shire of Capel is situated in the shores of Geographe Bay approximately 200 kilometres south west of Perth.
The Shire has an area of 554 square kilometres, extending from the 29 kilometres of pristine beach fronting onto Geographe Bay to the edge of the Darling Scarp.
It includes the suburbs of Boyanup, Capel, Capel River, Dalyellup, Elgin, Forrest Beach, Gelorup, Gwindinup, Ludlow, North Boyanup, Peppermint Grove Beach, The Plains, Stirling Estate, and Stratham.