Beijing Municipality in the context of "Economy of Beijing"

Tianjin is a major international port city in China. It is a direct-administered municipality on the shore of the Bohai Sea making it separate from the surrounding Hebei province. It is one of the nine national central cities, with a total population of 13,866,009 inhabitants at the time of the 2020 Chinese census. Its metropolitan area, which is made up of 12 central districts (other than Baodi, Jizhou, Jinghai and Ninghe), was home to 11,165,706 inhabitants in 2015 and is also the world's 29th-largest agglomeration (between Chengdu and Rio de Janeiro) and 11th-most populous city proper.

Tianjin is governed as one of the four municipalities (alongside Beijing, Shanghai, and Chongqing) under the direct administration of the State Council of China. However, it is the only municipality with a population of less than 20 million. The city borders Hebei Province and Beijing Municipality, bounded to the east by the Bohai Gulf portion of the Yellow Sea. Part of the Bohai Economic Rim, it is the largest coastal city in Northern China and part of the Jing-Jin-Ji megapolis.

Shuntian Prefecture was an administrative region of China during the Ming and Qing dynasties, equivalent to Beijing Municipality in today's People's Republic of China. However, the area of the prefecture jurisdiction was different. The term Shuntian fu also referred to the yamen (office) of the prefecture's local government.

Beizhili, formerly romanized as Pei-chih-li, Pechili, Peichili, etc. and also known as North or Northern Zhili or Chih-li, was a historical province of the Ming dynasty. Its capital was Beijing, from which it is also sometimes known as Beijing or Peking Province. Beizhili mostly covered the area of the Yuan province of Zhongshu—the "Central Administration"—and took its own name—Chinese for "Northern Directly Administered Area"—from Beijing's status as the Ming's national capital following the Yongle Emperor move there from Nanjing, which oversaw Nanzhili or the Southern Directly Administered Area. In 1645, at the beginning of the Qing dynasty, the name of Beizhili was changed to Zhili. Under the Republic and People's Republic of China, it was divided into Hebei and the provincial-level municipalities of Beijing and Tianjin. (Small parts of what was once Beizhili were also ceded to Henan and Shandong.)