Home Postcode finder NSW Brookong Brookong postcode NSW Brookong is a locality in New South Wales covered by postcode 2656. Postcode 2656 State or territory New South Wales (NSW) Region Canberra Add a free Brookong business listing Be the first listing in Brookong Common questionsWhat is the postcode for Brookong?Brookong, NSW has the postcode 2656.What state is Brookong in?Brookong is in New South Wales (NSW).Does postcode 2656 cover more than one suburb?Yes. Postcode 2656 covers 8 localities, so the postcode alone does not identify Brookong. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.