People's Republic of China prefecture-level subdivision
Autonomous prefectures (Chinese: 自治州; pinyin: zìzhìzhōu) are one type of autonomous administrative divisions of China, existing at the prefectural level, with either ethnic minorities forming over 50% of the population or being the historic home of significant minorities. Autonomous prefectures are mostly majority Han Chinese by population. The official name of an autonomous prefecture includes the most significant minority in that region, sometimes two, rarely three. For example, a Kazakh (Kazak in official naming system) prefecture may be called Kazak Zizhizhou. Like all other prefectural level divisions, autonomous prefectures are divided into county level divisions. There is one exception: Ili Kazak Autonomous Prefecture contains two prefectures of its own. Under the Constitution of the People's Republic of China, autonomous prefectures cannot be abolished.
Autonomous administrative divisions
The PRC's autonomous administrative divisions may be found in the first (or top) to third levels of its national administrative divisions thus:
List of autonomous prefectures
Ethnic composition of autonomous prefectures
Note: * - denotes as the second titular ethnic group
Guixi Zhuang Autonomous Prefecture (sub-provincial level, 1953–1955) in Guangxi Province, abolished because of the establishment of Guangxi Zhuang Autonomous Region.