Home Postcode finder SA Canunda Canunda postcode SA Canunda is a locality in South Australia covered by postcode 5291. Postcode 5291 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Canunda business listing Be the first listing in Canunda Common questionsWhat is the postcode for Canunda?Canunda, SA has the postcode 5291.What state is Canunda in?Canunda is in South Australia (SA).Does postcode 5291 cover more than one suburb?Yes. Postcode 5291 covers 34 localities, so the postcode alone does not identify Canunda. Browse other postcodes in South Australia, or widen the search to every Australian postcode.