Home Postcode finder SA Qualco Qualco postcode SA Qualco is a locality in South Australia covered by postcode 5322. Postcode 5322 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Qualco business listing Be the first listing in Qualco Common questionsWhat is the postcode for Qualco?Qualco, SA has the postcode 5322.What state is Qualco in?Qualco is in South Australia (SA).Does postcode 5322 cover more than one suburb?Yes. Postcode 5322 covers 5 localities, so the postcode alone does not identify Qualco. Browse other postcodes in South Australia, or widen the search to every Australian postcode.