Home Postcode finder SA Mount Bryan East Mount Bryan East postcode SA Mount Bryan East is a locality in South Australia covered by postcode 5419. Postcode 5419 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Mount Bryan East business listing Be the first listing in Mount Bryan East Common questionsWhat is the postcode for Mount Bryan East?Mount Bryan East, SA has the postcode 5419.What state is Mount Bryan East in?Mount Bryan East is in South Australia (SA).Does postcode 5419 cover more than one suburb?Yes. Postcode 5419 covers 7 localities, so the postcode alone does not identify Mount Bryan East. Browse other postcodes in South Australia, or widen the search to every Australian postcode.