Home Postcode finder QLD Lanefield Lanefield postcode QLD Lanefield is a locality in Queensland covered by postcode 4340. Postcode 4340 State or territory Queensland (QLD) Region Western Suburbs Add a free Lanefield business listing Be the first listing in Lanefield Common questionsWhat is the postcode for Lanefield?Lanefield, QLD has the postcode 4340.What state is Lanefield in?Lanefield is in Queensland (QLD).Does postcode 4340 cover more than one suburb?Yes. Postcode 4340 covers 18 localities, so the postcode alone does not identify Lanefield. Browse other postcodes in Queensland, or widen the search to every Australian postcode.