Home Postcodes by state WA 6490 Postcode 6490 6490 is the postcode for 6 localities in WA: Burran Rock, Chandler, Elabbin, Kwelkan, Nungarin and Talgomine. Localities with postcode 6490Burran RockWAChandlerWAElabbinWAKwelkanWANungarinWATalgomineWA Postcode 6490 State or territory Western Australia (WA) Localities 6 Council area Nungarin Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6489 · Postcode 6501