Home Postcode finder SA Canowie Belt Canowie Belt postcode SA Canowie Belt is a locality in South Australia covered by postcode 5420. Postcode 5420 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Canowie Belt business listing Be the first listing in Canowie Belt Common questionsWhat is the postcode for Canowie Belt?Canowie Belt, SA has the postcode 5420.What state is Canowie Belt in?Canowie Belt is in South Australia (SA).Does postcode 5420 cover more than one suburb?Yes. Postcode 5420 covers 2 localities, so the postcode alone does not identify Canowie Belt. Browse other postcodes in South Australia, or widen the search to every Australian postcode.