Home Postcode finder NSW Myuna Bay Myuna Bay postcode NSW Myuna Bay is a locality in New South Wales covered by postcode 2264. Postcode 2264 State or territory New South Wales (NSW) Region Gosford Add a free Myuna Bay business listing Be the first listing in Myuna Bay Common questionsWhat is the postcode for Myuna Bay?Myuna Bay, NSW has the postcode 2264.What state is Myuna Bay in?Myuna Bay is in New South Wales (NSW).Does postcode 2264 cover more than one suburb?Yes. Postcode 2264 covers 14 localities, so the postcode alone does not identify Myuna Bay. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.