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