Home Postcode finder QLD Forrest Beach Forrest Beach postcode QLD Forrest Beach is a locality in Queensland covered by postcode 4850. Postcode 4850 State or territory Queensland (QLD) Region North QLD Add a free Forrest Beach business listing Be the first listing in Forrest Beach Common questionsWhat is the postcode for Forrest Beach?Forrest Beach, QLD has the postcode 4850.What state is Forrest Beach in?Forrest Beach is in Queensland (QLD).Does postcode 4850 cover more than one suburb?Yes. Postcode 4850 covers 34 localities, so the postcode alone does not identify Forrest Beach. Browse other postcodes in Queensland, or widen the search to every Australian postcode.