Saddleworth is a small town in the Mid North region of South Australia. The town is situated on the Gilbert River and along with neighbourin…Saddleworth is a small town in the Mid North region of South Australia. The town is situated on the Gilbert River and along with neighbouring towns of Riverton, Rhynie and Tarlee the local area is known as the Gilbert Valley. The town is bisected by the Barrier Highway. At the 2016 census, Saddleworth had a population of 470.