Home Postcode finder SA Rowland Flat Rowland Flat postcode SA Rowland Flat is a locality in South Australia covered by postcode 5352. Postcode 5352 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Rowland Flat business listing Be the first listing in Rowland Flat Common questionsWhat is the postcode for Rowland Flat?Rowland Flat, SA has the postcode 5352.What state is Rowland Flat in?Rowland Flat is in South Australia (SA).Does postcode 5352 cover more than one suburb?Yes. Postcode 5352 covers 7 localities, so the postcode alone does not identify Rowland Flat. Browse other postcodes in South Australia, or widen the search to every Australian postcode.