Home Postcode finder SA Mount Drummond Mount Drummond postcode SA Mount Drummond is a locality in South Australia covered by postcode 5607. Postcode 5607 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Mount Drummond business listing Be the first listing in Mount Drummond Common questionsWhat is the postcode for Mount Drummond?Mount Drummond, SA has the postcode 5607.What state is Mount Drummond in?Mount Drummond is in South Australia (SA).Does postcode 5607 cover more than one suburb?Yes. Postcode 5607 covers 50 localities, so the postcode alone does not identify Mount Drummond. Browse other postcodes in South Australia, or widen the search to every Australian postcode.