Home Postcodes by state WA 6030 Postcode 6030 6030 is the postcode for 6 localities in WA: Clarkson, Merriwa, Mindarie, Quinns Rocks, Ridgewood and Tamala Park. Localities with postcode 6030ClarksonWAMerriwaWAMindarieWAQuinns RocksWARidgewoodWATamala ParkWA Postcode 6030 State or territory Western Australia (WA) Localities 6 Council area Wanneroo Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6029 · Postcode 6031