mullion-creek postcode nswst Home ›› Postcode Finder ›› NSWST ›› Mullion-Creek Mullion Creek local listingsThe suburb of Mullion Creek is located in NSW and has a postcode of 2800. Free mullion creek business listing! Get the first free listing in mullion creek! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.