Home Postcode finder SA Rosedale Rosedale postcode SA Rosedale is a locality in South Australia covered by postcode 5350. Postcode 5350 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Rosedale business listing Be the first listing in Rosedale Common questionsWhat is the postcode for Rosedale?Rosedale, SA has the postcode 5350.What state is Rosedale in?Rosedale is in South Australia (SA).Does postcode 5350 cover more than one suburb?Yes. Postcode 5350 covers 2 localities, so the postcode alone does not identify Rosedale. Browse other postcodes in South Australia, or widen the search to every Australian postcode.