Tongzi County, a county under the jurisdiction of Zunyi City, Guizhou Province. Located in the northern part of Guizhou Province, bordering Chongqing Municipality in the north, Huichuan District and Renhuai Municipality in the south, Xishui County and Qijiang District of Chongqing Municipality in the west, and Nanchuan District and Wansheng District of Chongqing in the north. It spans latitude 27°57′~28°54′ north and longitude 106°26′~107°17′ east, with a total land area of 3207 square kilometers. Tongzi County has 2 streets, 20 towns, 2 townships, and 1 ethnic township under its jurisdiction.At the end of 2022, Tongzi County had a resident population of 528,100, with an urbanization rate of 48.5%. Tongzi County is the "Hometown of Chinese Bamboo Shoots", known as the "Gateway to Northern Guizhou" and the "Key to Sichuan-Guizhou". Sichuan-Guizhou Railway, 210 National Highway and Yu Zhan Expressway running through the county, the county to Guiyang, Chongqing travel time of about 2 hours. 2018 September, Tongzi County quit the poverty-stricken county. In 2022, Tongzi County's gross domestic product (GDP) will be 18.243 billion yuan, an increase of 1.9% over the previous year, with an average growth of 4.8% over the two years.