Home Postcode finder SA Burnsfield Burnsfield postcode SA Burnsfield is a locality in South Australia covered by postcode 5520. Postcode 5520 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Burnsfield business listing Be the first listing in Burnsfield Common questionsWhat is the postcode for Burnsfield?Burnsfield, SA has the postcode 5520.What state is Burnsfield in?Burnsfield is in South Australia (SA).Does postcode 5520 cover more than one suburb?Yes. Postcode 5520 covers 6 localities, so the postcode alone does not identify Burnsfield. Browse other postcodes in South Australia, or widen the search to every Australian postcode.