Home Postcodes by state WA 6209 Postcode 6209 6209 is the postcode for 2 localities in WA: Barragup and Furnissdale. Localities with postcode 6209BarragupWAFurnissdaleWA Postcode 6209 State or territory Western Australia (WA) Localities 2 Council area Murray Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6208 · Postcode 6210