Home Postcode finder SA Lindley Lindley postcode SA Lindley is a locality in South Australia covered by postcode 5320. Postcode 5320 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Lindley business listing Be the first listing in Lindley Common questionsWhat is the postcode for Lindley?Lindley, SA has the postcode 5320.What state is Lindley in?Lindley is in South Australia (SA).Does postcode 5320 cover more than one suburb?Yes. Postcode 5320 covers 13 localities, so the postcode alone does not identify Lindley. Browse other postcodes in South Australia, or widen the search to every Australian postcode.