Datong (Chinese: 大同; pinyin: Dàtóng; Wade–Giles: Ta-t'ung) is a prefecture-level city in northern Shanxi province, People's Republic of China, located in a basin at an elevation of 1,040 metres (3,410 ft) and bordering Inner Mongolia to the north and west and Hebei to the east. It had a population of 3,318,057 at the 2010 census of whom 1,629,035 lived in the built up area made of 3 out of 4 urban districts, namely Chengqu, Kuangqu and Nanjiao District.