Cradock is a town and locality in the Australian state of South Australia 320 kilometres north of the state capital of Adelaide on the RM Williams Way. The nearest town with a greater population is Hawker which is approximately 20 km away with a population of around 360. Cradock is in the Flinders Ranges Council area, the state Electoral district of Stuar…Cradock is a town and locality in the Australian state of South Australia 320 kilometres north of the state capital of Adelaide on the RM Williams Way. The nearest town with a greater population is Hawker which is approximately 20 km away with a population of around 360. Cradock is in the Flinders Ranges Council area, the state Electoral district of Stuart and the federal Division of Grey.