Wanganella is a village community on the Billabong Creek in New South Wales, Australia. The settlement is on the Cobb Highway, located bet…Wanganella is a village community on the Billabong Creek in New South Wales, Australia. The settlement is on the Cobb Highway, located between Hay and Deniliquin. Wanganella is within the Edward River Council local government area. At the 2016 census, Wanganella had a population of 30.