wiluna postcode wa Home ›› Postcode Finder ›› WA ›› Wiluna Wiluna local listingsThe suburb of Wiluna is located in WA and has a postcode of 6646. Free wiluna business listing! 1Wiluna Remote Community School77 Wotton St 08 99817013 View more business listings in wiluna Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.