Home Postcode finder NSWDL South Gundagai South Gundagai postcode NSWDL South Gundagai is a locality in New South Wales covered by postcode 2722. Postcode 2722 State or territory New South Wales (NSWDL) Region Canberra Add a free South Gundagai business listing Be the first listing in South Gundagai Common questionsWhat is the postcode for South Gundagai?South Gundagai, NSWDL has the postcode 2722.What state is South Gundagai in?South Gundagai is in New South Wales (NSWDL).Does postcode 2722 cover more than one suburb?Yes. Postcode 2722 covers 9 localities, so the postcode alone does not identify South Gundagai. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.