Home Postcode finder SA Keith Keith postcode SA Keith is a locality in South Australia covered by postcode 5267. Postcode 5267 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Keith business listing More business listings in Keith Businesses in KeithKeith Area School12 Tolmer Tce · 08 87551177 Common questionsWhat is the postcode for Keith?Keith, SA has the postcode 5267.What state is Keith in?Keith is in South Australia (SA).Does postcode 5267 cover more than one suburb?Yes. Postcode 5267 covers 12 localities, so the postcode alone does not identify Keith. Browse other postcodes in South Australia, or widen the search to every Australian postcode.