Home Postcode finder NSW Long Flat Long Flat postcode NSW Long Flat is a locality in New South Wales covered by postcode 2446. Postcode 2446 State or territory New South Wales (NSW) Region NSW North Coast Add a free Long Flat business listing More business listings in Long Flat Businesses in Long FlatLong Flat Public SchoolOxley Hwy · 02 65874255 Common questionsWhat is the postcode for Long Flat?Long Flat, NSW has the postcode 2446.What state is Long Flat in?Long Flat is in New South Wales (NSW).Does postcode 2446 cover more than one suburb?Yes. Postcode 2446 covers 41 localities, so the postcode alone does not identify Long Flat. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.