Home Postcode finder SA Middle Beach Middle Beach postcode SA Middle Beach is a locality in South Australia covered by postcode 5501. Postcode 5501 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Middle Beach business listing Be the first listing in Middle Beach Common questionsWhat is the postcode for Middle Beach?Middle Beach, SA has the postcode 5501.What state is Middle Beach in?Middle Beach is in South Australia (SA).Does postcode 5501 cover more than one suburb?Yes. Postcode 5501 covers 14 localities, so the postcode alone does not identify Middle Beach. Browse other postcodes in South Australia, or widen the search to every Australian postcode.