South Townsville is a coastal suburb of Townsville in the City of Townsville, Queensland, Australia. In the 2021 census, South Townsville had a population of 2,424 people. South Townsville is located on the northern end of Ross Island, bounded by the Coral Sea to the north, Ross Creek to the west and the Ross River to the east. The suburb of Rail…South Townsville is a coastal suburb of Townsville in the City of Townsville, Queensland, Australia. In the 2021 census, South Townsville had a population of 2,424 people. South Townsville is located on the northern end of Ross Island, bounded by the Coral Sea to the north, Ross Creek to the west and the Ross River to the east. The suburb of Railway Estate occupies the southern part of the island.