Home Postcode finder SA Webb Beach Webb Beach postcode SA Webb 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 Webb Beach business listing Be the first listing in Webb Beach Common questionsWhat is the postcode for Webb Beach?Webb Beach, SA has the postcode 5501.What state is Webb Beach in?Webb 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 Webb Beach. Browse other postcodes in South Australia, or widen the search to every Australian postcode.