Home Postcode finder SA American Beach American Beach postcode SA American Beach is a locality in South Australia covered by postcode 5222. Postcode 5222 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free American Beach business listing Be the first listing in American Beach Common questionsWhat is the postcode for American Beach?American Beach, SA has the postcode 5222.What state is American Beach in?American Beach is in South Australia (SA).Does postcode 5222 cover more than one suburb?Yes. Postcode 5222 covers 17 localities, so the postcode alone does not identify American Beach. Browse other postcodes in South Australia, or widen the search to every Australian postcode.