west-lyons-river postcode wa Home ›› Postcode Finder ›› WA ›› West-Lyons-River West Lyons River local listingsThe suburb of West Lyons River is located in WA and has a postcode of 6705. Free west lyons river business listing! Get the first free listing in west lyons river! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.