Beijing is the capital of the People's Republic of China and one of the most populous cities in the world, with a total population of 21,150,000 as of 2013. The city proper is the 3rd most populous in the world. The metropolis, located in northern China, is governed as a direct-controlled municipality under the national government with 16 urban, suburban, and rural districts. Beijing Municipality is surrounded by Hebei Province with the exception of neighboring Tianjin Municipality to the southeast; together the three divisions form the Jingjinji metropolitan region and the national capital region of China.