denham postcode wa Home ›› Postcode Finder ›› WA ›› Denham Denham local listingsThe suburb of Denham is located in WA and has a postcode of 6537. Free denham business listing! 1Shark Bay Primary School39 Hughes St 08 99480000 View more business listings in denham Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.