barrington postcode nswst Home ›› Postcode Finder ›› NSWST ›› Barrington Barrington local listingsThe suburb of Barrington is located in NSW and has a postcode of 2422. Free barrington business listing! 1Barrington Public School1 Kenmore St 02 65584258 View more business listings in barrington Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.