Home Postcodes by state WA 6005 Postcode 6005 6005 is the postcode for 2 localities in WA: Kings Park and West Perth. Localities with postcode 6005Kings ParkWAWest PerthWA Postcode 6005 State or territory Western Australia (WA) Localities 2 Council area Perth; Mainly Perth, partly Vincent Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6004 · Postcode 6006