Home Postcode finder SA Bay Of Shoals Bay Of Shoals postcode SA Bay Of Shoals is a locality in South Australia covered by postcode 5223. Postcode 5223 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Bay Of Shoals business listing Be the first listing in Bay Of Shoals Common questionsWhat is the postcode for Bay Of Shoals?Bay Of Shoals, SA has the postcode 5223.What state is Bay Of Shoals in?Bay Of Shoals is in South Australia (SA).Does postcode 5223 cover more than one suburb?Yes. Postcode 5223 covers 30 localities, so the postcode alone does not identify Bay Of Shoals. Browse other postcodes in South Australia, or widen the search to every Australian postcode.