Home Postcode finder SA Worlds End Worlds End postcode SA Worlds End is a locality in South Australia covered by postcode 5381. Postcode 5381 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Worlds End business listing Be the first listing in Worlds End Common questionsWhat is the postcode for Worlds End?Worlds End, SA has the postcode 5381.What state is Worlds End in?Worlds End is in South Australia (SA).Does postcode 5381 cover more than one suburb?Yes. Postcode 5381 covers 9 localities, so the postcode alone does not identify Worlds End. Browse other postcodes in South Australia, or widen the search to every Australian postcode.