Home Postcode finder SA Schell Well Schell Well postcode SA Schell Well is a locality in South Australia covered by postcode 5311. Postcode 5311 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Schell Well business listing Be the first listing in Schell Well Common questionsWhat is the postcode for Schell Well?Schell Well, SA has the postcode 5311.What state is Schell Well in?Schell Well is in South Australia (SA).Does postcode 5311 cover more than one suburb?Yes. Postcode 5311 covers 13 localities, so the postcode alone does not identify Schell Well. Browse other postcodes in South Australia, or widen the search to every Australian postcode.