Home Postcode finder SA Stenhouse Bay Stenhouse Bay postcode SA Stenhouse 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 Stenhouse Bay business listing Be the first listing in Stenhouse Bay Common questionsWhat is the postcode for Stenhouse Bay?Stenhouse Bay, SA has the postcode 5575.What state is Stenhouse Bay in?Stenhouse 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 Stenhouse Bay. Browse other postcodes in South Australia, or widen the search to every Australian postcode.