yalwal postcode nswdl Home ›› Postcode Finder ›› NSWDL ›› Yalwal Yalwal local listingsThe suburb of Yalwal is located in NSW and has a postcode of 2540. Free yalwal business listing! Get the first free listing in yalwal! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.