Home Postcode finder SA Silver Sands Silver Sands postcode SA Silver Sands is a locality in South Australia covered by postcode 5173. Postcode 5173 State or territory South Australia (SA) Region Adelaide Add a free Silver Sands business listing Be the first listing in Silver Sands Common questionsWhat is the postcode for Silver Sands?Silver Sands, SA has the postcode 5173.What state is Silver Sands in?Silver Sands is in South Australia (SA).Does postcode 5173 cover more than one suburb?Yes. Postcode 5173 covers 4 localities, so the postcode alone does not identify Silver Sands. Browse other postcodes in South Australia, or widen the search to every Australian postcode.