Home Postcode finder SA St Ives St Ives postcode SA St Ives is a locality in South Australia covered by postcode 5252. Postcode 5252 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free St Ives business listing Be the first listing in St Ives Common questionsWhat is the postcode for St Ives?St Ives, SA has the postcode 5252.What state is St Ives in?St Ives is in South Australia (SA).Does postcode 5252 cover more than one suburb?Yes. Postcode 5252 covers 6 localities, so the postcode alone does not identify St Ives. Browse other postcodes in South Australia, or widen the search to every Australian postcode.