Chongqing (ˌtʃɒŋˈtʃɪŋ or ˈtʃɒŋtʃɪŋ ; ; Sichuanese pronunciation: tshoŋ˨˩tɕhin˨˩˦, Standard Mandarin pronunciation: AUDChongqing.oggchong2.qing4), alternately romanized as Chungking (ˈtʃʊŋˈkɪŋ), is one of the four direct-administered municipalities of the People's Republic of China (PRC). Geographically, Chongqing is strategically positioned as a gateway to China's west, a key connection in the Yangtze River Economic Belt, and a strategic base for China's Belt and Road Initiative.
Administratively, it is one of the four municipalities under the direct administration of the central government of the People's Republic of China (the other three are Beijing, Shanghai, and Tianjin), and the only such municipality located deep inland. The municipality of Chongqing, roughly the size of Austria or the French region of Nouvelle-Aquitaine, includes the city of Chongqing as well as various discontiguous cities. Due to a classification technicality, Chongqing municipality can claim to be the largest city proper in the worldthough it does not have the world's largest urban area. Chongqing is the only city in China with a permanent population of over 30 million, however this number includes a large rural population. Chongqing is the fourth largest Chinese city by urban population, with urban population of 16.34 million as of the 2020 estimation, after Shanghai, Beijing and Shenzhen. According to the 2010 census, Chongqing is the most populous Chinese municipality, and also the largest direct-controlled municipality in China, containing 26 districts, eight counties, and four autonomous counties.
During the Republic of China (ROC) era, Chongqing served as its wartime capital during the Second Sino-Japanese War (1937–1945). The current municipality was separated from Sichuan province on 14 March 1997 to help develop the central and western parts of China.
Chongqing has an extensive history and a rich culture. As one of China's National Central Cities, it serves as a financial center of the Sichuan Basin and the upstream Yangtze.