Home Postcodes by state WA 6304 Postcode 6304 6304 is the postcode for 7 localities in WA: Bally Bally, Beverley, Dale, East Beverley, Kokeby, Morbinning and 1 more. Localities with postcode 6304Bally BallyWABeverleyWADaleWAEast BeverleyWAKokebyWAMorbinningWAWestdaleWA Postcode 6304 State or territory Western Australia (WA) Localities 7 Council area Beverley Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6302 · Postcode 6306