Home Postcode finder SA Spring Farm Spring Farm postcode SA Spring Farm is a locality in South Australia covered by postcode 5453. Postcode 5453 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Spring Farm business listing Be the first listing in Spring Farm Common questionsWhat is the postcode for Spring Farm?Spring Farm, SA has the postcode 5453.What state is Spring Farm in?Spring Farm is in South Australia (SA).Does postcode 5453 cover more than one suburb?Yes. Postcode 5453 covers 16 localities, so the postcode alone does not identify Spring Farm. Browse other postcodes in South Australia, or widen the search to every Australian postcode.