Home Postcodes by state WA 6162 Postcode 6162 6162 is the postcode for 3 localities in WA: Beaconsfield, South Fremantle and White Gum Valley. Localities with postcode 6162BeaconsfieldWASouth FremantleWAWhite Gum ValleyWA Postcode 6162 State or territory Western Australia (WA) Localities 3 Council area Fremantle Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6161 · Postcode 6163