Home Postcode finder SA Mingbool Mingbool postcode SA Mingbool is a locality in South Australia covered by postcode 5291. Postcode 5291 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Mingbool business listing Be the first listing in Mingbool Common questionsWhat is the postcode for Mingbool?Mingbool, SA has the postcode 5291.What state is Mingbool in?Mingbool is in South Australia (SA).Does postcode 5291 cover more than one suburb?Yes. Postcode 5291 covers 34 localities, so the postcode alone does not identify Mingbool. Browse other postcodes in South Australia, or widen the search to every Australian postcode.