broadwater postcode wa Home ›› Postcode Finder ›› WA ›› Broadwater Broadwater local listingsThe suburb of Broadwater is located in WA and has a postcode of 6280. Free broadwater business listing! 1Geographe Bay Holiday Park535 Bussell Highway 0897524396 View more business listings in broadwater Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.