Home Postcode finder QLD Campwin Beach Campwin Beach postcode QLD Campwin Beach is a locality in Queensland covered by postcode 4737. Postcode 4737 State or territory Queensland (QLD) Region Central QLD Add a free Campwin Beach business listing Be the first listing in Campwin Beach Common questionsWhat is the postcode for Campwin Beach?Campwin Beach, QLD has the postcode 4737.What state is Campwin Beach in?Campwin Beach is in Queensland (QLD).Does postcode 4737 cover more than one suburb?Yes. Postcode 4737 covers 8 localities, so the postcode alone does not identify Campwin Beach. Browse other postcodes in Queensland, or widen the search to every Australian postcode.