Home Postcode finder SA Tiddy Widdy Beach Tiddy Widdy Beach postcode SA Tiddy Widdy Beach is a locality in South Australia covered by postcode 5571. Postcode 5571 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Tiddy Widdy Beach business listing Be the first listing in Tiddy Widdy Beach Common questionsWhat is the postcode for Tiddy Widdy Beach?Tiddy Widdy Beach, SA has the postcode 5571.What state is Tiddy Widdy Beach in?Tiddy Widdy Beach is in South Australia (SA).Does postcode 5571 cover more than one suburb?Yes. Postcode 5571 covers 9 localities, so the postcode alone does not identify Tiddy Widdy Beach. Browse other postcodes in South Australia, or widen the search to every Australian postcode.