Home Postcode finder SA Balgowan Balgowan postcode SA Balgowan is a locality in South Australia covered by postcode 5573. Postcode 5573 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Balgowan business listing Be the first listing in Balgowan Common questionsWhat is the postcode for Balgowan?Balgowan, SA has the postcode 5573.What state is Balgowan in?Balgowan is in South Australia (SA).Does postcode 5573 cover more than one suburb?Yes. Postcode 5573 covers 10 localities, so the postcode alone does not identify Balgowan. Browse other postcodes in South Australia, or widen the search to every Australian postcode.