Home Postcode finder QLD Red River Red River postcode QLD Red River is a locality in Queensland covered by postcode 4871. Postcode 4871 State or territory Queensland (QLD) Region North QLD Add a free Red River business listing Be the first listing in Red River Common questionsWhat is the postcode for Red River?Red River, QLD has the postcode 4871.What state is Red River in?Red River is in Queensland (QLD).Does postcode 4871 cover more than one suburb?Yes. Postcode 4871 covers 103 localities, so the postcode alone does not identify Red River. Browse other postcodes in Queensland, or widen the search to every Australian postcode.