Home Postcode finder SA Bowillia Bowillia postcode SA Bowillia is a locality in South Australia covered by postcode 5461. Postcode 5461 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Bowillia business listing Be the first listing in Bowillia Common questionsWhat is the postcode for Bowillia?Bowillia, SA has the postcode 5461.What state is Bowillia in?Bowillia is in South Australia (SA).Does postcode 5461 cover more than one suburb?Yes. Postcode 5461 covers 13 localities, so the postcode alone does not identify Bowillia. Browse other postcodes in South Australia, or widen the search to every Australian postcode.