newington postcode nswst Home ›› Postcode Finder ›› NSWST ›› Newington Newington local listingsThe suburb of Newington is located in NSW and has a postcode of 2127. Free newington business listing! 1Newington Public School49a Newington Drive 02 974879332Stephenson Environmental Management Australia2 Holker Street 02-9737-99913Stone Benchtops Direct11 Joyner Avenue, Newington NSW, Australia 1300992868 View more business listings in newington Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.