Rongjiang County, under the Qiandongnan Miao and Dong Autonomous Prefecture of Guizhou Province. It is located in the southeast of Guizhou Province and the south of Qiandongnan Miao and Dong Autonomous Prefecture. It borders Liping County and Congjiang County in the east, Leishan County and Sandu Shui Autonomous County in the west, Jianhe County in the north, and Libo County in the south, with a total area of 3315.8 square kilometers. In 2021, Rongjiang County has a registered population of 385,000 and a permanent resident population of 295,000. Is a multi-ethnic mixed county, the minority population accounts for 81% of the total population, a total of 16 ethnic groups. As of October 2021, Rongjiang County has jurisdiction over 1 subdistrict, 9 towns and 10 townships, and the county government is located at 29 Guzhou North Road, Guzhou Town.

Rongjiang County, formerly known as the ancient state, is one of the 800 states south of the Yangtze River. Qing, set the ancient state hall. Two years of the Republic of China (1913), the ancient state Hall, set Rongjiang County. In 1956, Qiandongnan Miao and Dong Autonomous Prefecture was included. In 1959, Rongjiang, Congjiang County, built Rongjiang County. In 1961, Rongjiang and Congjiang counties were set up separately. It is the national key ecological functional zone, the red revolutionary old base area, the distinguished county for the protection and utilization of revolutionary cultural relics, the site of the standard voice of China's Dong people, the pilot county of the "Internet +" agricultural products out of villages and into the city project, the national agricultural standardization demonstration zone, the national ecological demonstration zone, and the national high-quality citrus production base county , Guizhou Tourism priority Development Area, National cultural Advanced County, Home of Guizhou Gymnastics, one of the ten forestry counties in Guizhou Province, home of China's original ecological Xili Rice, regional fulcrum city in Guizhou, docking into the Guangdong-Hong Kong-Macao Greater Bay Area "bridgehead" main position. Xiligong Rice, Rongjiang Xiaoxiang Chicken, Rongjiang Pueraria root and Tashi Xiangyang were listed as National Geographic Indication protected products. In November 2020, the People's Government of Guizhou Province approved Rongjiang County to be removed from the list of impoverished counties. In August 2021, it was listed as a key county for rural vitalization by the National Rural Vitalization Bureau.

In 2021, the GDP of Rongjiang County was 8.99 billion yuan, an increase of 6.2% over the previous year, with per capita GDP of 30,338 yuan