Home Postcodes by state WA 6286 Postcode 6286 6286 is the postcode for 4 localities in WA: Boranup, Forest Grove, Redgate and Witchcliffe. Localities with postcode 6286BoranupWAForest GroveWARedgateWAWitchcliffeWA Postcode 6286 State or territory Western Australia (WA) Localities 4 Council area Augusta Margaret River Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6285 · Postcode 6288