erowal-bay postcode nswst Home ›› Postcode Finder ›› NSWST ›› Erowal-Bay Erowal Bay local listingsThe suburb of Erowal Bay is located in NSW and has a postcode of 2540. Free erowal bay business listing! Get the first free listing in erowal bay! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.