Home Postcode finder SA Apoinga Apoinga postcode SA Apoinga is a locality in South Australia covered by postcode 5413. Postcode 5413 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Apoinga business listing Be the first listing in Apoinga Common questionsWhat is the postcode for Apoinga?Apoinga, SA has the postcode 5413.What state is Apoinga in?Apoinga is in South Australia (SA).Does postcode 5413 cover more than one suburb?Yes. Postcode 5413 covers 9 localities, so the postcode alone does not identify Apoinga. Browse other postcodes in South Australia, or widen the search to every Australian postcode.