Home Postcode finder NSW Old Adaminaby Old Adaminaby postcode NSW Old Adaminaby is a locality in New South Wales covered by postcode 2629. Postcode 2629 State or territory New South Wales (NSW) Region Canberra Add a free Old Adaminaby business listing Be the first listing in Old Adaminaby Common questionsWhat is the postcode for Old Adaminaby?Old Adaminaby, NSW has the postcode 2629.What state is Old Adaminaby in?Old Adaminaby is in New South Wales (NSW).Does postcode 2629 cover more than one suburb?Yes. Postcode 2629 covers 9 localities, so the postcode alone does not identify Old Adaminaby. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.