Home Postcodes by state WA 6054 Postcode 6054 6054 is the postcode for 5 localities in WA: Ashfield, Bassendean, Eden Hill, Kiara and Lockridge. Localities with postcode 6054AshfieldWABassendeanWAEden HillWAKiaraWALockridgeWA Postcode 6054 State or territory Western Australia (WA) Localities 5 Council area Bassendean; Swan Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6053 · Postcode 6055