Home Postcode finder NSW Watanobbi Watanobbi postcode NSW Watanobbi is a locality in New South Wales covered by postcode 2259. Postcode 2259 State or territory New South Wales (NSW) Region Gosford Add a free Watanobbi business listing Be the first listing in Watanobbi Common questionsWhat is the postcode for Watanobbi?Watanobbi, NSW has the postcode 2259.What state is Watanobbi in?Watanobbi is in New South Wales (NSW).Does postcode 2259 cover more than one suburb?Yes. Postcode 2259 covers 42 localities, so the postcode alone does not identify Watanobbi. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.