Home Postcode finder SA Mingary Mingary postcode SA Mingary is a locality in South Australia covered by postcode 5440. Postcode 5440 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Mingary business listing Be the first listing in Mingary Common questionsWhat is the postcode for Mingary?Mingary, SA has the postcode 5440.What state is Mingary in?Mingary is in South Australia (SA).Does postcode 5440 cover more than one suburb?Yes. Postcode 5440 covers 7 localities, so the postcode alone does not identify Mingary. Browse other postcodes in South Australia, or widen the search to every Australian postcode.