Coorong is a locality in the Australian state of South Australia which is associated with the lagoon known as the Coorong in the south-east of the state and which overlooks the continental coastline from the mouth of the Murray River about 80 kilometres (50 mi) south-east of the state capital of Adelaide to the immediate north of the town of Kingston SE extending for a distance of at least 140 kilometres (87 mi).
It extends from the Murray Mouth in the north to the northern end of the Paranki Lagoon in the south including:
the following bodies of water with the Murray River system - Port Pullen, Coorong Channel, the Tauwitchere Channel and the full extent of the Coorong lagoon system,
the following major islands - Bird, Ewe, Long, Mud and Tauwitchere
the full extent of the Younghusband Peninsula
a parcel of land of an area of 267 square kilometres (103 sq mi) located between the localities of Meningie and Salt Creek and
land between the Coorong Lagoon and the Paranki Lagoon.
The boundaries of the locality were created firstly for the part within the Kingston District Council in 1998 and secondly for the part within the Coorong District Council in 2000 including the Villa De Yumpa Shack Site. The name is reported as being derived from the lagoon of the same name. The boundary with the locality of Hindmarsh Island was altered in 2014 to move Bird Island, an island located north-east of the Murray Mouth, into the locality of Coorong.