Ngarkat is a locality in the Australian state of South Australia located in the south-east of the state at the border with the state of Victoria in both the Murray Mallee and the Limestone Coast regions about 227 kilometres south east of the state capital of Adelaide.

Tatiara District Council is a local government area located in south-eastern South Australia. The name Tatiara is said to mean "the good country", a phrase which dates back to the area's first inhabitants, the Bodaruwitj people. It is one of the largest local government areas in South Australia at 6,476 km2 (2,500 sq mi). The district's economy is based primarily on agriculture, with cereal crops such as wheat, barley and oats and with livestock such as sheep, cattle and pigs prominent.