Home Postcode finder QLD River Ranch River Ranch postcode QLD River Ranch is a locality in Queensland covered by postcode 4680. Postcode 4680 State or territory Queensland (QLD) Region Central QLD Add a free River Ranch business listing Be the first listing in River Ranch Common questionsWhat is the postcode for River Ranch?River Ranch, QLD has the postcode 4680.What state is River Ranch in?River Ranch is in Queensland (QLD).Does postcode 4680 cover more than one suburb?Yes. Postcode 4680 covers 41 localities, so the postcode alone does not identify River Ranch. Browse other postcodes in Queensland, or widen the search to every Australian postcode.