Home Postcode finder SA New Port New Port postcode SA New Port is a locality in South Australia covered by postcode 5015. Postcode 5015 State or territory South Australia (SA) Region Adelaide Add a free New Port business listing Be the first listing in New Port Common questionsWhat is the postcode for New Port?New Port, SA has the postcode 5015.What state is New Port in?New Port is in South Australia (SA).Does postcode 5015 cover more than one suburb?Yes. Postcode 5015 covers 5 localities, so the postcode alone does not identify New Port. Browse other postcodes in South Australia, or widen the search to every Australian postcode.