Home Postcode finder SA Wepar Wepar postcode SA Wepar is a locality in South Australia covered by postcode 5278. Postcode 5278 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Wepar business listing Be the first listing in Wepar Common questionsWhat is the postcode for Wepar?Wepar, SA has the postcode 5278.What state is Wepar in?Wepar is in South Australia (SA).Does postcode 5278 cover more than one suburb?Yes. Postcode 5278 covers 4 localities, so the postcode alone does not identify Wepar. Browse other postcodes in South Australia, or widen the search to every Australian postcode.