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.
Prefectures of China
Development zones (开发区 pinyin: kāifāqū) were temporary prefectural level divisions. Chongqing was a development zone before it became a municipality, and two development zones were set up within Chongqing immediately after it became a municipality. These divisions were temporary and no longer exist.The constitution of the People's Republic of China does not endorse any prefectural level division, except for autonomous prefectures. Prefectures and leagues are not at all mentioned; provinces are explicitly stated to be divided directly into counties.