Home Postcode finder SA Stirling North Stirling North postcode SA Stirling North is a locality in South Australia covered by postcode 5710. Postcode 5710 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Stirling North business listing More business listings in Stirling North Businesses in Stirling NorthStirling North Primary SchoolBeckman St · 08 86436020 Common questionsWhat is the postcode for Stirling North?Stirling North, SA has the postcode 5710.What state is Stirling North in?Stirling North is in South Australia (SA).Does postcode 5710 cover more than one suburb?Yes. Postcode 5710 covers 11 localities, so the postcode alone does not identify Stirling North. Browse other postcodes in South Australia, or widen the search to every Australian postcode.