Home Postcode finder SA Christies Beach North Christies Beach North postcode SA Christies Beach North is a locality in South Australia covered by postcode 5165. Postcode 5165 State or territory South Australia (SA) Region Adelaide Add a free Christies Beach North business listing Be the first listing in Christies Beach North Common questionsWhat is the postcode for Christies Beach North?Christies Beach North, SA has the postcode 5165.What state is Christies Beach North in?Christies Beach North is in South Australia (SA).Does postcode 5165 cover more than one suburb?Yes. Postcode 5165 covers 2 localities, so the postcode alone does not identify Christies Beach North. Browse other postcodes in South Australia, or widen the search to every Australian postcode.