waroona postcode wa Home ›› Postcode Finder ›› WA ›› Waroona Waroona local listingsThe suburb of Waroona is located in WA and has a postcode of 6215. Free waroona business listing! 1Pinjarra Bakery (Waroona)36 South Western Highway, Waroona WA, Australia (08) 9733 22782St Joseph's SchoolMillar St 08 973314953Waroona District High SchoolMillar St 08 97337000 View more business listings in waroona Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.