auburn postcode nsw Home ›› Postcode Finder ›› NSW ›› Auburn Auburn local listingsThe suburb of Auburn is located in NSW and has a postcode of 2144. Free auburn business listing! 1Trinity Catholic College13 Park Rd 02 974919192Auburn Girls High SchoolCnr Hunter St & Braemar Ave 02 964969493Sule College26-28 Kerr Parade 02 97494434 View more business listings in auburn Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.