Home Postcode finder SA Chilpenunda Chilpenunda postcode SA Chilpenunda is a locality in South Australia covered by postcode 5660. Postcode 5660 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Chilpenunda business listing Be the first listing in Chilpenunda Common questionsWhat is the postcode for Chilpenunda?Chilpenunda, SA has the postcode 5660.What state is Chilpenunda in?Chilpenunda is in South Australia (SA).Does postcode 5660 cover more than one suburb?Yes. Postcode 5660 covers 2 localities, so the postcode alone does not identify Chilpenunda. Browse other postcodes in South Australia, or widen the search to every Australian postcode.