memagong postcode nswst Home ›› Postcode Finder ›› NSWST ›› Memagong Memagong local listingsThe suburb of Memagong is located in NSW and has a postcode of 2594. Free memagong business listing! Get the first free listing in memagong! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.