Home Postcode finder NSW Barnsley Barnsley postcode NSW Barnsley is a locality in New South Wales covered by postcode 2278. Postcode 2278 State or territory New South Wales (NSW) Region Hunter Add a free Barnsley business listing More business listings in Barnsley Businesses in BarnsleyAuswide Building & Masonry50 Codrington Street, Barnsley New South Wales 2278, Australia · +61 410 627 892Barnsley Public School6 Cliffbrook St · 02 49532976Fairyland Preschool33 George Street · (02) 4953 1040 Common questionsWhat is the postcode for Barnsley?Barnsley, NSW has the postcode 2278.What state is Barnsley in?Barnsley is in New South Wales (NSW).Does postcode 2278 cover more than one suburb?Yes. Postcode 2278 covers 3 localities, so the postcode alone does not identify Barnsley. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.