Home Postcode finder QLD Reid River Reid River postcode QLD Reid River is a locality in Queensland covered by postcode 4816. Postcode 4816 State or territory Queensland (QLD) Region North QLD Add a free Reid River business listing Be the first listing in Reid River Common questionsWhat is the postcode for Reid River?Reid River, QLD has the postcode 4816.What state is Reid River in?Reid River is in Queensland (QLD).Does postcode 4816 cover more than one suburb?Yes. Postcode 4816 covers 40 localities, so the postcode alone does not identify Reid River. Browse other postcodes in Queensland, or widen the search to every Australian postcode.