Wilcannia is a small town located within the Central Darling Shire in north western New South Wales, Australia. Located on the Darling River, t…Wilcannia is a small town located within the Central Darling Shire in north western New South Wales, Australia. Located on the Darling River, the town was the third largest inland port in the country during the river boat era of the mid-19th century. At the 2021 census, Wilcannia had a population of 735.