perth-gpo postcode wa Home ›› Postcode Finder ›› WA ›› Perth-Gpo Perth Gpo local listingsThe suburb of Perth Gpo is located in WA and has a postcode of 6000. Free perth gpo business listing! Get the first free listing in perth gpo! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.