Home Postcodes by state WA 6468 Postcode 6468 6468 is the postcode for 3 localities in WA: Goodlands, Kalannie and Petrudor. Localities with postcode 6468GoodlandsWAKalannieWAPetrudorWA Postcode 6468 State or territory Western Australia (WA) Localities 3 Council area Dalwallinu Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6467 · Postcode 6470