Home Postcode finder SA Greenock Greenock postcode SA Greenock is a locality in South Australia covered by postcode 5360. Postcode 5360 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Greenock business listing More business listings in Greenock Businesses in GreenockGreenock Primary SchoolC/o Post Office · 08 85628011 Common questionsWhat is the postcode for Greenock?Greenock, SA has the postcode 5360.What state is Greenock in?Greenock is in South Australia (SA).Does postcode 5360 cover more than one suburb?Yes. Postcode 5360 covers 2 localities, so the postcode alone does not identify Greenock. Browse other postcodes in South Australia, or widen the search to every Australian postcode.