Swan Reach is a river port in South Australia 127 km north-east of Adelaide on the Murray River between Blanchetown and Mannum in South Australia. It is on the left bank of the river. The Swan Reach Ferry is a cable ferry crossing operated by the state government as part of the state’s road network. Swan Reach, with all parts below Lock #1, is also one of the lowest parts of the river. In 2009–2010 the river was about 1.5 metres below its normal level. In late 2022 and early 2023 the town experienced a flood with river levels not seen since the devastating flood of 1956. Homes and businesses on Victoria street were inundated, along with most of the holiday homes at Marks Landing. Widespread damage was caused. At the 2016 census, Swan Reach had a population of 283.