Home Postcode finder NSW Turners Flat Turners Flat postcode NSW Turners Flat is a locality in New South Wales covered by postcode 2440. Postcode 2440 State or territory New South Wales (NSW) Region NSW North Coast Add a free Turners Flat business listing Be the first listing in Turners Flat Common questionsWhat is the postcode for Turners Flat?Turners Flat, NSW has the postcode 2440.What state is Turners Flat in?Turners Flat is in New South Wales (NSW).Does postcode 2440 cover more than one suburb?Yes. Postcode 2440 covers 48 localities, so the postcode alone does not identify Turners Flat. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.