brisbane-gpo postcode qld Home ›› Postcode Finder ›› QLD ›› Brisbane-Gpo Brisbane Gpo local listingsThe suburb of Brisbane Gpo is located in QLD and has a postcode of 4000. Free brisbane gpo business listing! Get the first free listing in brisbane gpo! Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.