Home Postcode finder QLD Petford Petford postcode QLD Petford is a locality in Queensland covered by postcode 4871. Postcode 4871 State or territory Queensland (QLD) Region North QLD Add a free Petford business listing Be the first listing in Petford Common questionsWhat is the postcode for Petford?Petford, QLD has the postcode 4871.What state is Petford in?Petford is in Queensland (QLD).Does postcode 4871 cover more than one suburb?Yes. Postcode 4871 covers 103 localities, so the postcode alone does not identify Petford. Browse other postcodes in Queensland, or widen the search to every Australian postcode.