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