prince-regent-river postcode wa Home ›› Postcode Finder ›› WA ›› Prince-Regent-River Prince Regent River local listingsThe suburb of Prince Regent River is located in WA and has a postcode of 6740. Free prince regent river business listing! Get the first free listing in prince regent river! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.