Jilin City Is the second-largest city and former capital of Jilin province in Northeast China. As of the 2010 census, 4,414,681 people resided within its administrative area of 27,120 square kilometres and 1,975,803 in its built-up area consisting of 4 urban districts. A prefecture-level city, it is the only major city nationally that shares its name with its province.Jilin City is also known as the River City because of the Songhua River surrounding much of the city. In 2007, it co-hosted the Asian Winter Games.