Home Postcode finder SA Cunyarie Cunyarie postcode SA Cunyarie is a locality in South Australia covered by postcode 5641. Postcode 5641 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Cunyarie business listing Be the first listing in Cunyarie Common questionsWhat is the postcode for Cunyarie?Cunyarie, SA has the postcode 5641.What state is Cunyarie in?Cunyarie is in South Australia (SA).Does postcode 5641 cover more than one suburb?Yes. Postcode 5641 covers 13 localities, so the postcode alone does not identify Cunyarie. Browse other postcodes in South Australia, or widen the search to every Australian postcode.