kwinana-beach postcode wa Home ›› Postcode Finder ›› WA ›› Kwinana-Beach Kwinana Beach local listingsThe suburb of Kwinana Beach is located in WA and has a postcode of 6167. Free kwinana beach business listing! Get the first free listing in kwinana beach! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.