Home Postcode finder QLD Murray Island Murray Island postcode QLD Murray Island is a locality in Queensland covered by postcode 4875. Postcode 4875 State or territory Queensland (QLD) Region North QLD Add a free Murray Island business listing Be the first listing in Murray Island Common questionsWhat is the postcode for Murray Island?Murray Island, QLD has the postcode 4875.What state is Murray Island in?Murray Island is in Queensland (QLD).Does postcode 4875 cover more than one suburb?Yes. Postcode 4875 covers 17 localities, so the postcode alone does not identify Murray Island. Browse other postcodes in Queensland, or widen the search to every Australian postcode.