Home Postcode finder SA Annadale Annadale postcode SA Annadale is a locality in South Australia covered by postcode 5356. Postcode 5356 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Annadale business listing Be the first listing in Annadale Common questionsWhat is the postcode for Annadale?Annadale, SA has the postcode 5356.What state is Annadale in?Annadale is in South Australia (SA).Does postcode 5356 cover more than one suburb?Yes. Postcode 5356 covers 7 localities, so the postcode alone does not identify Annadale. Browse other postcodes in South Australia, or widen the search to every Australian postcode.