Home Postcodes by state WA 6348 Postcode 6348 6348 is the postcode for Hopetoun, WA. Localities with postcode 6348HopetounWA Postcode 6348 State or territory Western Australia (WA) Localities 1 Council area Ravensthorpe Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6346 · Postcode 6350