Home Postcode finder NSW Kulwin Kulwin postcode NSW Kulwin is a locality in New South Wales covered by postcode 2835. Postcode 2835 State or territory New South Wales (NSW) Region NSW Country West Add a free Kulwin business listing Be the first listing in Kulwin Common questionsWhat is the postcode for Kulwin?Kulwin, NSW has the postcode 2835.What state is Kulwin in?Kulwin is in New South Wales (NSW).Does postcode 2835 cover more than one suburb?Yes. Postcode 2835 covers 12 localities, so the postcode alone does not identify Kulwin. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.