south-kalgoorlie postcode wa Home ›› Postcode Finder ›› WA ›› South-Kalgoorlie South Kalgoorlie local listingsThe suburb of South Kalgoorlie is located in WA and has a postcode of 6430. Free south kalgoorlie business listing! Get the first free listing in south kalgoorlie! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.