Home Postcode finder NSWDL Auburn Auburn postcode NSWDL Auburn is a locality in New South Wales covered by postcode 2144. Postcode 2144 State or territory New South Wales (NSWDL) Region Leightonfield Add a free Auburn business listing More business listings in Auburn Businesses in AuburnA1 QUALITY CLEANING 42 Dartbrook Rd · 1300 851 601Advertising Printing Australia Ltd7-9 Percy Street, Auburn NSW, Australia · 02 9637 7550Afford Sydney Piano Removals15 Harrow Road · 1300551215 Common questionsWhat is the postcode for Auburn?Auburn, NSWDL has the postcode 2144.What state is Auburn in?Auburn is in New South Wales (NSWDL).Does postcode 2144 cover more than one suburb?No. Postcode 2144 covers Auburn only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.