Home Postcode finder SA Mount Mckenzie Mount Mckenzie postcode SA Mount Mckenzie is a locality in South Australia covered by postcode 5353. Postcode 5353 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Mount Mckenzie business listing Be the first listing in Mount Mckenzie Common questionsWhat is the postcode for Mount Mckenzie?Mount Mckenzie, SA has the postcode 5353.What state is Mount Mckenzie in?Mount Mckenzie is in South Australia (SA).Does postcode 5353 cover more than one suburb?Yes. Postcode 5353 covers 11 localities, so the postcode alone does not identify Mount Mckenzie. Browse other postcodes in South Australia, or widen the search to every Australian postcode.