Home Postcode finder NSW Coolac Coolac postcode NSW Coolac is a locality in New South Wales covered by postcode 2727. Postcode 2727 State or territory New South Wales (NSW) Region Canberra Add a free Coolac business listing Be the first listing in Coolac Common questionsWhat is the postcode for Coolac?Coolac, NSW has the postcode 2727.What state is Coolac in?Coolac is in New South Wales (NSW).Does postcode 2727 cover more than one suburb?Yes. Postcode 2727 covers 3 localities, so the postcode alone does not identify Coolac. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.