Home Postcode finder SA Lower Hermitage Lower Hermitage postcode SA Lower Hermitage is a locality in South Australia covered by postcode 5131. Postcode 5131 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Lower Hermitage business listing Be the first listing in Lower Hermitage Common questionsWhat is the postcode for Lower Hermitage?Lower Hermitage, SA has the postcode 5131.What state is Lower Hermitage in?Lower Hermitage is in South Australia (SA).Does postcode 5131 cover more than one suburb?Yes. Postcode 5131 covers 3 localities, so the postcode alone does not identify Lower Hermitage. Browse other postcodes in South Australia, or widen the search to every Australian postcode.