Home Postcode finder SA Andrews Andrews postcode SA Andrews 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 Andrews business listing Be the first listing in Andrews Common questionsWhat is the postcode for Andrews?Andrews, SA has the postcode 5454.What state is Andrews in?Andrews 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 Andrews. Browse other postcodes in South Australia, or widen the search to every Australian postcode.