Home Postcodes by state WA 6072 Postcode 6072 6072 is the postcode for Mahogany Creek, WA. Localities with postcode 6072Mahogany CreekWA Postcode 6072 State or territory Western Australia (WA) Localities 1 Council area Mundaring Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6071 · Postcode 6073