yandanooka postcode wa Home ›› Postcode Finder ›› WA ›› Yandanooka Yandanooka local listingsThe suburb of Yandanooka is located in WA and has a postcode of 6522. Free yandanooka business listing! Get the first free listing in yandanooka! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.