Guangdong
Guangdong (; formerly romanised as Kwangtung or Canton Province) is a province in South China, on the South China Sea coast. Guangdong surpassed Henan and Shandong to become the most populous province in China in January 2005, registering 79.1 million permanent residents and 31 million migrants who lived in the province for at least six months of the year; the total population was 104,303,132 in the 2010 census, accounting for 7.79 percent of Mainland China's population. This also makes it the most populous first-level administrative subdivision of any country outside of South Asia, as its population is surpassed only by those of the Pakistani province of Punjab and the Indian states of Bihar, Maharashtra and Uttar Pradesh. The provincial capital Guangzhou and economic hub Shenzhen are among the most populous and important cities in China. The population increase since the census has been modest, the province registering 108,500,000 people in 2015.
Chongqing
Chongqing is the largest of the four direct-controlled municipalities of the People's Republic of China. The municipality is divided into 38 subdivisions (3 were abolished in 1997, and Wansheng and Shuangqiao districts were abolished in October 2011), consisting of 26 districts, 8 counties, and 4 autonomous counties. The boundaries of Chongqing municipality reach much farther into the city's hinterland than the boundaries of the other three provincial level municipalities (Beijing, Shanghai and Tianjin), and much of its administrative area, which spans over , is rural. At the end of year 2017, the total population is 30.75 million.