Home Postcode finder SA Brady Creek Brady Creek postcode SA Brady Creek is a locality in South Australia covered by postcode 5381. Postcode 5381 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Brady Creek business listing Be the first listing in Brady Creek Common questionsWhat is the postcode for Brady Creek?Brady Creek, SA has the postcode 5381.What state is Brady Creek in?Brady Creek is in South Australia (SA).Does postcode 5381 cover more than one suburb?Yes. Postcode 5381 covers 9 localities, so the postcode alone does not identify Brady Creek. Browse other postcodes in South Australia, or widen the search to every Australian postcode.