Home Postcode finder SA Elliston Elliston postcode SA Elliston is a locality in South Australia covered by postcode 5670. Postcode 5670 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Elliston business listing More business listings in Elliston Businesses in EllistonElliston Area School32-40 Flinders Hwy · 08 86879167 Common questionsWhat is the postcode for Elliston?Elliston, SA has the postcode 5670.What state is Elliston in?Elliston is in South Australia (SA).Does postcode 5670 cover more than one suburb?Yes. Postcode 5670 covers 11 localities, so the postcode alone does not identify Elliston. Browse other postcodes in South Australia, or widen the search to every Australian postcode.