Home Postcode finder SA Canowie Canowie postcode SA Canowie is a locality in South Australia covered by postcode 5419. Postcode 5419 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Canowie business listing Be the first listing in Canowie Common questionsWhat is the postcode for Canowie?Canowie, SA has the postcode 5419.What state is Canowie in?Canowie is in South Australia (SA).Does postcode 5419 cover more than one suburb?Yes. Postcode 5419 covers 7 localities, so the postcode alone does not identify Canowie. Browse other postcodes in South Australia, or widen the search to every Australian postcode.