Home Postcode finder NSW Coolumbooka Coolumbooka postcode NSW Coolumbooka is a locality in New South Wales covered by postcode 2632. Postcode 2632 State or territory New South Wales (NSW) Region Canberra Add a free Coolumbooka business listing Be the first listing in Coolumbooka Common questionsWhat is the postcode for Coolumbooka?Coolumbooka, NSW has the postcode 2632.What state is Coolumbooka in?Coolumbooka is in New South Wales (NSW).Does postcode 2632 cover more than one suburb?Yes. Postcode 2632 covers 18 localities, so the postcode alone does not identify Coolumbooka. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.