Home Postcode finder SA Mundallio Mundallio postcode SA Mundallio is a locality in South Australia covered by postcode 5700. Postcode 5700 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Mundallio business listing Be the first listing in Mundallio Common questionsWhat is the postcode for Mundallio?Mundallio, SA has the postcode 5700.What state is Mundallio in?Mundallio is in South Australia (SA).Does postcode 5700 cover more than one suburb?Yes. Postcode 5700 covers 8 localities, so the postcode alone does not identify Mundallio. Browse other postcodes in South Australia, or widen the search to every Australian postcode.