Home Postcode finder SA Marcollat Marcollat postcode SA Marcollat is a locality in South Australia covered by postcode 5271. Postcode 5271 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Marcollat business listing Be the first listing in Marcollat Common questionsWhat is the postcode for Marcollat?Marcollat, SA has the postcode 5271.What state is Marcollat in?Marcollat is in South Australia (SA).Does postcode 5271 cover more than one suburb?Yes. Postcode 5271 covers 18 localities, so the postcode alone does not identify Marcollat. Browse other postcodes in South Australia, or widen the search to every Australian postcode.