Home Postcode finder NSW Mittagong Mittagong postcode NSW Mittagong is a locality in New South Wales covered by postcode 2575. Postcode 2575 State or territory New South Wales (NSW) Region Ingleburn Add a free Mittagong business listing More business listings in Mittagong Businesses in MittagongAST Technologies1/118 Main Street, Mittagong NSW 2575, Australia · (02) 4883 6567Birrahlee Childrens Centre21 Elsworth AveFrenshamRange Rd · 02 48602000 Common questionsWhat is the postcode for Mittagong?Mittagong, NSW has the postcode 2575.What state is Mittagong in?Mittagong is in New South Wales (NSW).Does postcode 2575 cover more than one suburb?Yes. Postcode 2575 covers 19 localities, so the postcode alone does not identify Mittagong. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.