Home Postcode finder SA Clarendon Clarendon postcode SA Clarendon is a locality in South Australia covered by postcode 5157. Postcode 5157 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Clarendon business listing More business listings in Clarendon Businesses in ClarendonClarendon Primary SchoolPotter Road · 08 83836110 Common questionsWhat is the postcode for Clarendon?Clarendon, SA has the postcode 5157.What state is Clarendon in?Clarendon is in South Australia (SA).Does postcode 5157 cover more than one suburb?Yes. Postcode 5157 covers 8 localities, so the postcode alone does not identify Clarendon. Browse other postcodes in South Australia, or widen the search to every Australian postcode.