Home Postcode finder NSW Gunnedah Gunnedah postcode NSW Gunnedah is a locality in New South Wales covered by postcode 2380. Postcode 2380 State or territory New South Wales (NSW) Region NSW North Coast Add a free Gunnedah business listing More business listings in Gunnedah Businesses in GunnedahCarinya Christian School46 Elgin St · 02 67422766GS Kidd Memorial Special School121 Stock Rd · 02 67421501Gunnedah High School2-34 Marquis St · 02 67420155 Common questionsWhat is the postcode for Gunnedah?Gunnedah, NSW has the postcode 2380.What state is Gunnedah in?Gunnedah is in New South Wales (NSW).Does postcode 2380 cover more than one suburb?Yes. Postcode 2380 covers 9 localities, so the postcode alone does not identify Gunnedah. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.