Home Postcode finder QLD Barnard Barnard postcode QLD Barnard is a locality in Queensland covered by postcode 4702. Postcode 4702 State or territory Queensland (QLD) Region Central QLD Add a free Barnard business listing Be the first listing in Barnard Common questionsWhat is the postcode for Barnard?Barnard, QLD has the postcode 4702.What state is Barnard in?Barnard is in Queensland (QLD).Does postcode 4702 cover more than one suburb?Yes. Postcode 4702 covers 87 localities, so the postcode alone does not identify Barnard. Browse other postcodes in Queensland, or widen the search to every Australian postcode.