Cengong County belongs to Qiandongnan Miao and Dong Autonomous Prefecture of Guizhou Province. It is located in the east of Guizhou and the northeast of southeast Guizhou, between 108°20 '~ 109°03' east longitude and 27°09 '~ 27°32' north latitude. It is connected to Yuping Dong Autonomous County of Tongren City in the east, Zhenyuan County of southeast Guizhou Province in the south, Shiqian County of Tongren City in the west, and Jiangkou County and Tongren City in the north. It is 154 kilometers to Kaili City, capital of Southeast Guizhou Province, 335 kilometers away from Guiyang City, capital of Guizhou Province. Covering an area of 1486.5 square kilometers, it has jurisdiction over 7 towns, 4 townships and 1 provincial economic and technological development zone. County people's government in the emerging economic Development Zone. The territory is inhabited by 18 ethnic groups including Han, Miao, Dong, Gelao and Tujia. According to the seventh census, Cengong's permanent population was 168,441 as of midnight on November 1, 2020.

Cenggong is rich in high-quality rice, fruits, peanuts, rapeseed, tea, Chinese medicinal materials, pigs, cattle, sheep, fish and other agricultural and animal husbandry products, among which the local famous products Sizhou green tea, Sizhou crystal rice, Sizhou Wendan pomelo, Sizhou tung oil are the most famous. In 2020, the GDP of Cengong County was 60.00 billion yuan, with a year-on-year growth of 6.4%.