Home Postcode finder NSW Barellan Barellan postcode NSW Barellan is a locality in New South Wales covered by postcode 2665. Postcode 2665 State or territory New South Wales (NSW) Region Canberra Add a free Barellan business listing More business listings in Barellan Businesses in BarellanBarellan Central School26 Boree St · 02 69639202 Common questionsWhat is the postcode for Barellan?Barellan, NSW has the postcode 2665.What state is Barellan in?Barellan is in New South Wales (NSW).Does postcode 2665 cover more than one suburb?Yes. Postcode 2665 covers 12 localities, so the postcode alone does not identify Barellan. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.