wyndham postcode wa Home ›› Postcode Finder ›› WA ›› Wyndham Wyndham local listingsThe suburb of Wyndham is located in WA and has a postcode of 6740. Free wyndham business listing! 1Wyndham District High SchoolLot 1735 Coverley St 08 916110632St Joseph's School77 St Peters Way 08 91611021 View more business listings in wyndham Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.