Covering an area of 870 square kilometers, Tongzhou District is divided into 11 towns, one district with 12 townships and 28 neighbourhood committees with a population of 600, 000. Since ancient times, Tongzhou District has been the eastern gateway of Beijing, communications hub and strategic points. At present, the district is the biggest satellite city of Beijing.
Tongzhou has a long history of more than 220 years since its foundation in Xihan Dynasty. Relics unearthed in Tongzhou indicates that human beings had lived here as early as the Neolithic Age; In 195 BC, Liu Bang, the first Emperor of Xihan dynasty, set up the county here; In 25 AD, the first year of Donghan dynasty, the emperor Liu Xiu renamed it as Lu County; In 1151 AD, when the ruling power was the Jin dynasty, the emperor–King Hai Ling set up a new feudal province and renamed County Lu as Tongzhou since the Chinese character Tong could fully describe the importance of the Great Canal in transportation; In 1914, Tongzhou was renamed Tong County; In 1997, it was, by the State Councilis confirmation, renamed Tongzhou and became one of the districts in Beijing.