Home Postcode finder NSW Dollys Flat Dollys Flat postcode NSW Dollys Flat is a locality in New South Wales covered by postcode 2429. Postcode 2429 State or territory New South Wales (NSW) Region Hunter Add a free Dollys Flat business listing Be the first listing in Dollys Flat Common questionsWhat is the postcode for Dollys Flat?Dollys Flat, NSW has the postcode 2429.What state is Dollys Flat in?Dollys Flat is in New South Wales (NSW).Does postcode 2429 cover more than one suburb?Yes. Postcode 2429 covers 32 localities, so the postcode alone does not identify Dollys Flat. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.