Home Postcode finder SA Karkoo Karkoo postcode SA Karkoo is a locality in South Australia covered by postcode 5607. Postcode 5607 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Karkoo business listing More business listings in Karkoo Businesses in KarkooKarkoo Primary SchoolRSD · 08 86766030 Common questionsWhat is the postcode for Karkoo?Karkoo, SA has the postcode 5607.What state is Karkoo in?Karkoo is in South Australia (SA).Does postcode 5607 cover more than one suburb?Yes. Postcode 5607 covers 50 localities, so the postcode alone does not identify Karkoo. Browse other postcodes in South Australia, or widen the search to every Australian postcode.