Home Postcode finder NSW Whitton Whitton postcode NSW Whitton is a locality in New South Wales covered by postcode 2705. Postcode 2705 State or territory New South Wales (NSW) Region Canberra Add a free Whitton business listing More business listings in Whitton Businesses in WhittonWhitton Public School8 Melbergen St · 02 69552631 Common questionsWhat is the postcode for Whitton?Whitton, NSW has the postcode 2705.What state is Whitton in?Whitton is in New South Wales (NSW).Does postcode 2705 cover more than one suburb?Yes. Postcode 2705 covers 8 localities, so the postcode alone does not identify Whitton. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.