Home Postcode finder SA Koppio Koppio postcode SA Koppio 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 Koppio business listing Be the first listing in Koppio Common questionsWhat is the postcode for Koppio?Koppio, SA has the postcode 5607.What state is Koppio in?Koppio 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 Koppio. Browse other postcodes in South Australia, or widen the search to every Australian postcode.