Port Augusta, South Australia in the context of "Augusta Highway"

Darwin (/ˈdɑːrwɪn/ DAR-win; Larrakia: Garramilla) is the capital and largest city of the Northern Territory, Australia. The city had a population of 139,902 at the 2021 census, which is nearly 53% of the territory's population. It is the smallest, wettest, and most northerly of the Australian capital cities and serves as the Top End's regional centre.

Darwin's proximity to Southeast Asia makes it a key link between Australia and countries such as Indonesia and Timor-Leste. The Stuart Highway begins in Darwin and extends southerly across central Australia through Tennant Creek and Alice Springs, concluding in Port Augusta, South Australia. The city is built upon a low bluff overlooking Darwin Harbour. Darwin's suburbs extend to Lee Point in the north and to Berrimah in the east. The Stuart Highway extends to Darwin's eastern satellite city of Palmerston and its suburbs.

The Far North is a region that covers about 70 per cent of the Australian state of South Australia. It extends across the entire width of the state – about 1200 kilometres (750 miles) – for approximately the northernmost 750 kilometres (470 miles). The state government defines the Far North region similarly, although it separately delineates the Maralinga Tjarutja Lands, the Yalata Aboriginal community and other unincorporated crown lands in the state's far west, which are officially considered part of the Eyre and Western region. Colloquially, South Australians regard anywhere north of Port Augusta as the Far North.

The Far North is by far the least populated region of South Australia.