Home Postcode finder NSW Centennial Park Centennial Park postcode NSW Centennial Park is a locality in New South Wales covered by postcode 2021. Postcode 2021 State or territory New South Wales (NSW) Region Waterloo Add a free Centennial Park business listing Be the first listing in Centennial Park Common questionsWhat is the postcode for Centennial Park?Centennial Park, NSW has the postcode 2021.What state is Centennial Park in?Centennial Park is in New South Wales (NSW).Does postcode 2021 cover more than one suburb?Yes. Postcode 2021 covers 3 localities, so the postcode alone does not identify Centennial Park. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.