Wynarka is a very small town in South Australia 120 kilometres (75 mi) southeast of Adelaide on the Karoonda Highway (B55) and Loxton railway line in the Murray Mallee.

[6][3] The locality's boundaries were created on 11 November 1999 and includes the site of the government town of Wynarka which is located in its approximate centre.

[11] On 15 July 2015, the remains of a young child in a suitcase were discovered near the side of the Karoonda Highway near Wynarka.

[12] The child was not identified until October as having been Khandalyce Kiara Pearce who had been reported missing with her mother from extended family in Alice Springs in 2009.

Her mother's body had been found but not identified in 2010 in the Belanglo State Forest in New South Wales and is also believed to have been murdered.