Home Postcode finder SA Riverton Riverton postcode SA Riverton is a locality in South Australia covered by postcode 5412. Postcode 5412 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Riverton business listing More business listings in Riverton Businesses in RivertonRiverton and District High SchoolOxford Terrace · 08 88472202Riverton Primary School21 Swindon St · 08 88472206 Common questionsWhat is the postcode for Riverton?Riverton, SA has the postcode 5412.What state is Riverton in?Riverton is in South Australia (SA).Does postcode 5412 cover more than one suburb?Yes. Postcode 5412 covers 4 localities, so the postcode alone does not identify Riverton. Browse other postcodes in South Australia, or widen the search to every Australian postcode.