Home Postcode finder SA Midgee Midgee postcode SA Midgee is a locality in South Australia covered by postcode 5602. Postcode 5602 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Midgee business listing Be the first listing in Midgee Common questionsWhat is the postcode for Midgee?Midgee, SA has the postcode 5602.What state is Midgee in?Midgee is in South Australia (SA).Does postcode 5602 cover more than one suburb?Yes. Postcode 5602 covers 8 localities, so the postcode alone does not identify Midgee. Browse other postcodes in South Australia, or widen the search to every Australian postcode.