Home Postcode finder SA Borrika Borrika postcode SA Borrika is a locality in South Australia covered by postcode 5309. Postcode 5309 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Borrika business listing Be the first listing in Borrika Common questionsWhat is the postcode for Borrika?Borrika, SA has the postcode 5309.What state is Borrika in?Borrika is in South Australia (SA).Does postcode 5309 cover more than one suburb?Yes. Postcode 5309 covers 4 localities, so the postcode alone does not identify Borrika. Browse other postcodes in South Australia, or widen the search to every Australian postcode.