Home Postcode finder SA Langs Landing Langs Landing postcode SA Langs Landing is a locality in South Australia covered by postcode 5354. Postcode 5354 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Langs Landing business listing Be the first listing in Langs Landing Common questionsWhat is the postcode for Langs Landing?Langs Landing, SA has the postcode 5354.What state is Langs Landing in?Langs Landing is in South Australia (SA).Does postcode 5354 cover more than one suburb?Yes. Postcode 5354 covers 10 localities, so the postcode alone does not identify Langs Landing. Browse other postcodes in South Australia, or widen the search to every Australian postcode.