Home Postcode finder QLD James Cook University James Cook University postcode QLD James Cook University is a locality in Queensland covered by postcode 4811. Postcode 4811 State or territory Queensland (QLD) Region North QLD Add a free James Cook University business listing Be the first listing in James Cook University Common questionsWhat is the postcode for James Cook University?James Cook University, QLD has the postcode 4811.What state is James Cook University in?James Cook University is in Queensland (QLD).Does postcode 4811 cover more than one suburb?Yes. Postcode 4811 covers 9 localities, so the postcode alone does not identify James Cook University. Browse other postcodes in Queensland, or widen the search to every Australian postcode.