Home Postcode finder QLD Saunders Beach Saunders Beach postcode QLD Saunders Beach is a locality in Queensland covered by postcode 4818. Postcode 4818 State or territory Queensland (QLD) Region North QLD Add a free Saunders Beach business listing Be the first listing in Saunders Beach Common questionsWhat is the postcode for Saunders Beach?Saunders Beach, QLD has the postcode 4818.What state is Saunders Beach in?Saunders Beach is in Queensland (QLD).Does postcode 4818 cover more than one suburb?Yes. Postcode 4818 covers 18 localities, so the postcode alone does not identify Saunders Beach. Browse other postcodes in Queensland, or widen the search to every Australian postcode.