Home Postcode finder SA Wool Bay Wool Bay postcode SA Wool Bay is a locality in South Australia covered by postcode 5575. Postcode 5575 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Wool Bay business listing Be the first listing in Wool Bay Common questionsWhat is the postcode for Wool Bay?Wool Bay, SA has the postcode 5575.What state is Wool Bay in?Wool Bay is in South Australia (SA).Does postcode 5575 cover more than one suburb?Yes. Postcode 5575 covers 17 localities, so the postcode alone does not identify Wool Bay. Browse other postcodes in South Australia, or widen the search to every Australian postcode.