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