Bourke Shire is a local government area in the Orana region of New South Wales, Australia. The Shire is located adjacent to the Darling River, which is known as the Barwon River upstream from Bourke; and located adjacent to the Mitchell Highway. The northern boundary of the Shire is located adjacent to the border between New South Wales and Queensland. …Bourke Shire is a local government area in the Orana region of New South Wales, Australia. The Shire is located adjacent to the Darling River, which is known as the Barwon River upstream from Bourke; and located adjacent to the Mitchell Highway. The northern boundary of the Shire is located adjacent to the border between New South Wales and Queensland. The shire is a wool and beef producing area.