Home Postcode finder SA Kadina Kadina postcode SA Kadina is a locality in South Australia covered by postcode 5554. Postcode 5554 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Kadina business listing More business listings in Kadina Businesses in KadinaHarvest Christian SchoolGeorge St · 08 88214945Kadina Memorial High School5 Doswell Terrace · 08 88210460Kadina Primary School5 Doswell Terrace · 08 88210480 Common questionsWhat is the postcode for Kadina?Kadina, SA has the postcode 5554.What state is Kadina in?Kadina is in South Australia (SA).Does postcode 5554 cover more than one suburb?Yes. Postcode 5554 covers 10 localities, so the postcode alone does not identify Kadina. Browse other postcodes in South Australia, or widen the search to every Australian postcode.