U+6E1D CJK Unified Ideo­graph-​6E1D

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Chongqing is a major city and municipality in Southwestern China. Chongqing is one of the four direct-administered municipalities under the Central People's Government, along with Beijing, Shanghai, and Tianjin. It is the only directly administrated municipality located deep inland. The municipality covers a large geographical area roughly the size of Austria, which includes several disjunct urban areas in addition to Chongqing proper. Due to its classification, the municipality of Chongqing is the largest city proper in the world by area, though it does not have the largest urban area.

The municipality of Chongqing is the only Chinese municipality with a permanent population of over 30 million; however, this number includes its large rural population. In 2020, Chongqing passed Shanghai to become China's largest municipality by urban population; as of 2022, it has an urban population of 22.8 million. The municipality contains 26 districts, 8 counties, and 4 autonomous counties. The city served as the wartime capital for the Republic of China (ROC) during the Second Sino-Japanese War (1937–1945). On 14 March 1997, the current municipality was separated from the surrounding province of Sichuan, with the goal of furthering development in the central and western parts of the country.

As one of China's National Central Cities, Chongqing serves as a center for finance in the Sichuan Basin and the upstream Yangtze, as well as for manufacturing and transportation. It is a connection in the Yangtze River Economic Belt and a base for the country's Belt and Road Initiative.Chongqing Jiangbei International Airport is the second-busiest airport in China, and is one of the top 50 busiest airports in the world, The city's monorail system is the world's longest and busiest, as well as having the greatest number of stations, with 70. Chongqing is ranked as a Beta (global second-tier) city; It is the headquarters of the Changan Automobile, one of the "Big Four" car manufacturers of China. As of 2023, the city hosts 12 foreign representations, the fifth-most in China behind Beijing, Shanghai, Guangzhou, and Chengdu. It is one of the top 40 cities globally by scientific research output, as tracked by the Nature Index; the municipality is home to several notable universities, including Chongqing University, Southwest University, and Chongqing Normal University.