Home Postcode finder SA Hacklins Corner Hacklins Corner postcode SA Hacklins Corner is a locality in South Australia covered by postcode 5454. Postcode 5454 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Hacklins Corner business listing Be the first listing in Hacklins Corner Common questionsWhat is the postcode for Hacklins Corner?Hacklins Corner, SA has the postcode 5454.What state is Hacklins Corner in?Hacklins Corner is in South Australia (SA).Does postcode 5454 cover more than one suburb?Yes. Postcode 5454 covers 7 localities, so the postcode alone does not identify Hacklins Corner. Browse other postcodes in South Australia, or widen the search to every Australian postcode.