Home Postcode finder NSW Macmasters Beach Macmasters Beach postcode NSW Macmasters Beach is a locality in New South Wales covered by postcode 2251. Postcode 2251 State or territory New South Wales (NSW) Region Gosford Add a free Macmasters Beach business listing Be the first listing in Macmasters Beach Common questionsWhat is the postcode for Macmasters Beach?Macmasters Beach, NSW has the postcode 2251.What state is Macmasters Beach in?Macmasters Beach is in New South Wales (NSW).Does postcode 2251 cover more than one suburb?Yes. Postcode 2251 covers 12 localities, so the postcode alone does not identify Macmasters Beach. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.