Home Postcode finder SA Mundoo Island Mundoo Island postcode SA Mundoo Island is a locality in South Australia covered by postcode 5214. Postcode 5214 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Mundoo Island business listing Be the first listing in Mundoo Island Common questionsWhat is the postcode for Mundoo Island?Mundoo Island, SA has the postcode 5214.What state is Mundoo Island in?Mundoo Island is in South Australia (SA).Does postcode 5214 cover more than one suburb?Yes. Postcode 5214 covers 8 localities, so the postcode alone does not identify Mundoo Island. Browse other postcodes in South Australia, or widen the search to every Australian postcode.