Home Postcode finder SA Brinkworth Brinkworth postcode SA Brinkworth is a locality in South Australia covered by postcode 5464. Postcode 5464 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Brinkworth business listing More business listings in Brinkworth Businesses in BrinkworthBrinkworth Primary SchoolMain St · 08 88462132 Common questionsWhat is the postcode for Brinkworth?Brinkworth, SA has the postcode 5464.What state is Brinkworth in?Brinkworth is in South Australia (SA).Does postcode 5464 cover more than one suburb?Yes. Postcode 5464 covers 8 localities, so the postcode alone does not identify Brinkworth. Browse other postcodes in South Australia, or widen the search to every Australian postcode.