Home Postcode finder SA Morn Hill Morn Hill postcode SA Morn Hill is a locality in South Australia covered by postcode 5371. Postcode 5371 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Morn Hill business listing Be the first listing in Morn Hill Common questionsWhat is the postcode for Morn Hill?Morn Hill, SA has the postcode 5371.What state is Morn Hill in?Morn Hill is in South Australia (SA).Does postcode 5371 cover more than one suburb?Yes. Postcode 5371 covers 4 localities, so the postcode alone does not identify Morn Hill. Browse other postcodes in South Australia, or widen the search to every Australian postcode.