Home Postcode finder SA Hanson Hanson postcode SA Hanson is a locality in South Australia covered by postcode 5417. Postcode 5417 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Hanson business listing Be the first listing in Hanson Common questionsWhat is the postcode for Hanson?Hanson, SA has the postcode 5417.What state is Hanson in?Hanson is in South Australia (SA).Does postcode 5417 cover more than one suburb?Yes. Postcode 5417 covers 10 localities, so the postcode alone does not identify Hanson. Browse other postcodes in South Australia, or widen the search to every Australian postcode.