Home Postcode finder NSW Blakney Creek Blakney Creek postcode NSW Blakney Creek is a locality in New South Wales covered by postcode 2581. Postcode 2581 State or territory New South Wales (NSW) Region Canberra Add a free Blakney Creek business listing Be the first listing in Blakney Creek Common questionsWhat is the postcode for Blakney Creek?Blakney Creek, NSW has the postcode 2581.What state is Blakney Creek in?Blakney Creek is in New South Wales (NSW).Does postcode 2581 cover more than one suburb?Yes. Postcode 2581 covers 17 localities, so the postcode alone does not identify Blakney Creek. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.