Walgett Shire is a local government area in the Orana region of New South Wales, Australia. The northern boundary of the Shire is located adjacent to the border between New South Wales and Queensland. The town of Walgett is located on the Namoi River, nearby to its junction with the Barwon River and at the junction of the Kamilaroi Highway and the C…Walgett Shire is a local government area in the Orana region of New South Wales, Australia. The northern boundary of the Shire is located adjacent to the border between New South Wales and Queensland. The town of Walgett is located on the Namoi River, nearby to its junction with the Barwon River and at the junction of the Kamilaroi Highway and the Castlereagh Highway.