mount-elphinstone postcode wa Home ›› Postcode Finder ›› WA ›› Mount-Elphinstone Mount Elphinstone local listingsThe suburb of Mount Elphinstone is located in WA and has a postcode of 6330. Free mount elphinstone business listing! Get the first free listing in mount elphinstone! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.