Home Postcodes by state WA 6537 Postcode 6537 6537 is the postcode for 7 localities in WA: Denham, Dirk Hartog Island, Francois Peron National Park, Monkey Mia, Nanga, Shark Bay and 1 more. Localities with postcode 6537DenhamWADirk Hartog IslandWAFrancois Peron National ParkWAMonkey MiaWANangaWAShark BayWAUseless LoopWA Postcode 6537 State or territory Western Australia (WA) Localities 7 Council area Shark Bay Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6536 · Postcode 6556