Home Postcode finder SA Keswick Terminal Keswick Terminal postcode SA Keswick Terminal is a locality in South Australia covered by postcode 5035. Postcode 5035 State or territory South Australia (SA) Region Adelaide Add a free Keswick Terminal business listing Be the first listing in Keswick Terminal Common questionsWhat is the postcode for Keswick Terminal?Keswick Terminal, SA has the postcode 5035.What state is Keswick Terminal in?Keswick Terminal is in South Australia (SA).Does postcode 5035 cover more than one suburb?Yes. Postcode 5035 covers 6 localities, so the postcode alone does not identify Keswick Terminal. Browse other postcodes in South Australia, or widen the search to every Australian postcode.