Home Postcode finder QLD Garnant Garnant postcode QLD Garnant is a locality in Queensland covered by postcode 4702. Postcode 4702 State or territory Queensland (QLD) Region Central QLD Add a free Garnant business listing Be the first listing in Garnant Common questionsWhat is the postcode for Garnant?Garnant, QLD has the postcode 4702.What state is Garnant in?Garnant 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 Garnant. Browse other postcodes in Queensland, or widen the search to every Australian postcode.