mulga-downs postcode wa Home ›› Postcode Finder ›› WA ›› Mulga-Downs Mulga Downs local listingsThe suburb of Mulga Downs is located in WA and has a postcode of 6751. Free mulga downs business listing! Get the first free listing in mulga downs! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.