Hengfeng（横峰） County is a small county under the administration of Shangrao city,Jiangxi Province, P.R.China. It locates in the middle part of shangrao city, about 30 km far from shangrao Xinzhou which is the locality of the municiple.
The county is set up in Year Jiajing 39(嘉靖39年，1560 BC) with the name Xin'an(兴安县)，whose initial highest administrator is Chen Qingyun（陈庆云）who took his duty in the same year.
In the Year Mingguo 3(民国3年，1914 BC)，Hengfeng changed its name from Xin'an to current name Hengfeng to eliminate the ambiguity since a county in Guangxi Province has the same name. The county's east-west distance is 28.3 km, and the north-south is 50.3 km. The area is 655.24 square km by aircraft measure.The highest moutain is Mill-Dish Moutain(磨盘山) with its peak altitude 1366.6 meters. Xinjiang River,the main river across Shangrao city, lies in the county for 9.82 metres. The county's intensity of river grid is 0.2 km/square km.
Until 2005,the population is about 200,000, most of which work in the primary industry. The transportation is very convenient. NO.320 national road, NO.311 high way, Zhegan railway, Hengnan Railway make the county 2 hours to Nanchang city, 3 to Hanzhou city, 4 to shanghai city. Currently the local government concentrates on developing economy, mainly by building industry garden and offering good policies. Xin'an Industry Garden lies in the western part which is gradually expanding west to the boundary of its nearby county -Yiyang County.