38°42′N 118°6′E / 38.700°N 118.100°E / 38.700; 118.100

Jing-Jin-Ji 京津冀城市群
Megalopolis
Beijing–Tianjin–Hebei Urban Agglomeration
Beijing, the largest city in megalopolis
Beijing-Tianjin from space
Country	People's Republic of China
Province	Hebei
Municipalities	Beijing Tianjin
Major Prefectural Cities	Baoding Shijiazhuang Tangshan Cangzhou Langfang Zhangjiakou Chengde Qinhuangdao
Government
• Mayor of Beijing	Yin Yong
• Mayor of Tianjin	Zhang Gong
• Governor of Hebei	Wang Zhengpu
Area [1]
• Total	217,156 km2 (83,844 sq mi)
Population  (2020[2])
• Total	110 million
• Density	507/km2 (1,310/sq mi)
GDP
• Jing-Jin-Ji	CN¥ 10.444 trillion (US$ 1.483 trillion) (2022)[3]
Time zone	UTC+8 (CST)

The Jing-Jin-Ji cluster^[a] is an expanded urban agglomeration consisting of Beijing (Jing), Tianjin (Jin), and Hebei (Ji). It is the biggest urban agglomeration region in North China, including an economic region surrounding the municipalities of Beijing and Tianjin, and along the coast of the Bohai Sea.^[4] This emerging region is rising as a northern metropolitan region rivaling the Pearl River Delta in the south and the Yangtze River Delta in the east. In 2020, it had a total population of 110 million people, comparable to that of the Philippines.

In 2022, the area's GDP was ¥10 trillion (US$1.5 trillion), equivalent to that of Spain.^[5] It occupied an area about twice the size of the South Korea.^[6] Jingjinji had traditionally been involved in heavy industries and manufacturing. Tianjin's strengths have always been in aviation, logistics, and shipping. Beijing complements this economic activity with strong petrochemical, education, and R&D industries. The area is becoming a significant growth cluster for automobile, electronics, petrochemical sectors, automotive industry, software and aircraft, thus attracting foreign investments in manufacturing and health services.^[7][8]

The Chinese central government has made it a priority to integrate all the cities in the Bohai Bay rim and foster economic development. This includes building an advanced communications network, better highways, increased education, and scientific resources, as well as tapping natural resources off the Bohai rim.^[9] In 2016, the Central Government approved a US$36-billion plan to link the various cities making up this metropolis by rail in order to reduce commute times and to better integrate them. This plan includes the construction of nine railways that are 1,100 km (680 mi) in length, which are set to be completed by 2020.^[6] The long-term goal is to create a one-hour commuting region; an additional 24 intercity railways are planned to be built before 2050.^[10]

In recent decades, petroleum and natural gas deposits have been discovered in the Jingjinji region's coast of the Bohai sea.

Inn 2013-2014, Xi Jinping gave directives on coordinating development in the region, elevating development strategies in the region to be a national priority.^[11]: 142 In particular, planning strategies sought to alleviate development pressure in Beijing.^{[11]: 142–143} The desire to alleviate the development pressure of Beijing's increasing non-capital functions was formalized in the June 2015 Outline Plan for Coordinated Development of Beijing-Tianjin-Hebei and subsequently resulted in the establishment of Xiong'an.^[11]: 143 Xiong'an is where Beijing's non-capital functions, such as universities, research institutes, and high-tech innovation centers are planned to be transferred over time.^[11]: 145

Jingjinji includes the Beijing, Tianjin, and Hebei provinces. Major cities in these municipalities and provinces include:

City	Pinyin	Population (2010)	Image	Information	City Map
Beijing 北京	Běijīng	19,612,368		Beijing is a metropolis in northern China and the capital of the People's Republic of China. Beijing is governed as a municipality under the direct administration of the central government. Beijing is China's second-largest city after Shanghai; more than 17 million people in Beijing's jurisdiction.
Tianjin 天津	Tiānjīn	12,938,224		The third-largest city of the People's Republic of China in terms of the urban population. Administratively it is one of the four municipalities that have provincial-level status, reporting directly to the central government. Its urban land area is the third-largest in China, ranked only after Beijing and Shanghai.
Baoding 保定	Bǎodìng	10,029,197		Baoding is the third-largest city in Hebei Province, ranked after Shijiazhuang and Tangshan. The city is located in the center of the Beijing-Tianjin-Shijiazhuang Economic Triangle, with good transportation connections and close commuting distances to its nearby major cities. The newly established Xiong'an New Area aims to be a high-tech, environmentally sustainable, modern metropolis and serves as a new hub for some administrative departments. Logistics bases in northern China are within the city limits of Baoding.[12]
Shijiazhuang 石家庄	Shíjiāzhuāng	9,547,869		Shijiazhuang is the capital of Hebei, as well as the third-largest city in Jingjinji, after Beijing and Tianjin.
Tangshan 唐山	Tángshān	7,577,284		Tangshan, a coastal city along the Bohai Bay and neighboring Tianjin, is the second-largest city in Hebei, after Shijiazhuang. It is also known for the 1976 Tangshan earthquake.
Cangzhou 沧州	Cāngzhōu	7,134,053		A city in south-east Hebei on the coast of the Bohai Sea coast. It borders Tianjin to the north.
Langfang 廊坊	Lángfāng	4,358,839		Langfang is located between Beijing and Tianjin and contains the Sanhe exclave, which is separate from the rest of Hebei.
Zhangjiakou 张家口	Zhāngjiākǒu	4,345,491		A city in north-west Hebei. It borders Beijing to the southeast.
Chengde 承德	Chéngdé	3,473,197		A city in northeast Hebei, best known for the Chengde Mountain Resort.
Qinhuangdao 秦皇岛	Qínhuángdǎo	2,987,605[13]		A city in north-east coastal Hebei, best known for the Beidaihe.

• Beijing Capital International Airport
• Beijing Daxing International Airport
• Tianjin Binhai International Airport
• Shijiazhuang Zhengding International Airport

• Chengde Puning Airport
• Qinhuangdao Beidaihe Airport
• Tangshan Sannühe Airport
• Zhangjiakou Ningyuan Airport

There are many major highways servicing the routes within Jingjinji area. This includes the following expressways:

• Jingjintang Expressway, from Beijing, through Tianjin's urban area, to Binhai / TEDA
• Jinghu Expressway, from Jinjing Gonglu Bridge to Shanghai (together with Jingjintang Expressway, this is the expressway from Beijing to Shanghai)
• Jingshen Expressway, through Baodi District on its way from Beijing to Shenyang
• Jingshi Expressway, from Beijing, to Shijiazhuang
• Baojin Expressway, from Beichen District, Tianjin, to Baoding, Hebei -- known in Tianjin as the Jinbao Expressway
• Jinbin Expressway, from Zhangguizhuang Bridge to Hujiayuan Bridge, both within Tianjin
• Jinji Expressway, from central Tianjin to Jixian County
• G95 Capital Area Loop Expressway

The following six China National Highways pass through Tianjin:

• China National Highway 102, through Ji County, Tianjin on its way from Beijing to Harbin
• China National Highway 103, from Beijing, through Tianjin's urban area, to Binhai
• China National Highway 104, from Beijing, through Tianjin, to Fuzhou
• China National Highway 105, from Beijing, through Tianjin, to Macau
• China National Highway 112, circular highway around Beijing, passes through Tianjin
• China National Highway 205, from Shanhaiguan, Hebei, through Tianjin, to Guangzhou

• Beijing–Tianjin intercity railway
• Tianjin–Baoding intercity railway

• Beijing–Shanghai high-speed railway
• Beijing–Shenyang high-speed railway
• Beijing–Shijiazhuang high-speed railway
• Tianjin–Qinhuangdao high-speed railway

• Beijing–Zhangjiakou intercity railway

• Beijing Suburban Railway
• Tianjin Suburban Railway (Tianjin–Jizhou railway)

• Beijing Subway
• Shijiazhuang Metro
• Tianjin Metro

• Tianjin Tram

• Bohai Economic Rim
• Megalopolises in China
• Pearl River Delta
• Yangtze River Delta
• Keihanshin
• Greater Tokyo Area
• Seoul Capital Area
• Taipei–Keelung metropolitan area