watheroo postcode wa Home ›› Postcode Finder ›› WA ›› Watheroo Watheroo local listingsThe suburb of Watheroo is located in WA and has a postcode of 6513. Free watheroo business listing! 1Watheroo Primary SchoolCnr York And Marah Streets 08 96517038 View more business listings in watheroo Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.