Xingguo County was founded in the Three Kingdoms, and Pingyang County was founded in the fifth year of Wujiahe (236). In the seventh year of Taiping Xingguo in Northern Song Dynasty (982), the county was named Taiping Xingguo. Xingguo county is a mountainous county in Jiangxi province, with low mountains and hills as the main landforms, and Zhongshan and low mountains in some areas. It belongs to subtropical monsoon humid climate, with mild climate, abundant rainfall, abundant sunshine and distinct four seasons; Rivers in the county mainly belong to Pinggu water system, a tributary of Gongshui River in Ganjiang River. Xingguo is a model county, a red army county, a martyr county and a general county in China Soviet Area, with red scenic spots represented by Lianjiang Academy, Xingguo General Hall and Xingguo Revolution Memorial Hall.
In 20 19, Xingguo county achieved a regional GDP of191570,000 yuan and a total fiscal revenue of 2.007 billion yuan.
By the end of 20 19, there were 8 towns in Xingguo County, 17 townships: Lianjiang, Jiangbei, Gulonggang, Meijiao, Gaoxing, Liangcun, Longkou, Chenggang, Xingjiang, Zhangmu, Dongcun, Xinglian, Jiecun and Shefu. The county government is located at No.8 Hakka Road, Lianjiang Town.