wallingat postcode nswst Home ›› Postcode Finder ›› NSWST ›› Wallingat Wallingat local listingsThe suburb of Wallingat is located in NSW and has a postcode of 2428. Free wallingat business listing! Get the first free listing in wallingat! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.