Hengshan County (Chinese: 衡山县; pinyin: Héngshān Xiàn; lit. 'Mount Heng') is a county in the Province of Hunan, China and it is under the administration of Hengyang prefecture-level city. Located in the north of Hengyang and the east-central part of Hunan province, the county is bordered to the north by Xiangtan County, to the northwest by Shuangfeng County, to the southwest and south by Hengyang County, Nanyue District and Hengnan County, to the east by Hengdong County. The county of Hengshan covers 934 km2 (361 sq mi) with a population of 449,500 (as of 2015). It has five townships and seven towns under its jurisdiction, the county seat is Kaiyun Town (开云镇).
|Country||People's Republic of China|
|Time zone||UTC+8 (China Standard)|
The county of Hengshan was named after the Hengshan Mountain, the place name of Hengshan was described in the Book of Documents (one of the Five Classics of ancient Chinese literature). It was belonged to the territory of Chu State in the Spring and Autumn period, it was part of Changsha Commandery (长沙郡) in the Qin period and part of Xiangnan County (湘南县) of Changsha State (长沙国) in the Han period. The county of Hengyang (not modern Hengyang County) was created in 257 AD, its seat was located in modern Yonghe Township and the county of Hengyang was renamed to Hengshan in 290 AD. The National Teacher's College was located in the county in the late 1940s.
According to preliminary accounting of the statistical authority, the gross domestic product of Hengshan County in 2017 was 16,722 million yuan (2,477 million US dollars), up by 8.6 percent over the previous year. Of this total, the value added of the primary industry was 3,210 million yuan (475 million US dollars), up by 3.3 percent, that of the secondary industry was 4,634 million yuan (686 million US dollars), up by 6.6 percent and that of the tertiary industry was 8,878 million yuan (1,315 million US dollars), up by 11.8 percent. The value added of the primary industry accounted for 19.20 percent of the GDP; that of the secondary industry accounted for 27.71 percent; and that of the tertiary industry accounted for 53.09 percent. The per capita GDP in 2017 was 43,416 yuan (6,430 US dollars).
- According to the Official Reply of Hunan Provincial Civil Affairs Department on approving township-level division adjustment programmes of Hengshan County (November 18, 2015) / 《湖南省民政厅关于同意衡山县乡镇区划调整方案的批复》（2015年11月18日 湘民行发〔2015〕34号） see rednet.cn (Dec.4, 2015) or m.rednet
- history of Hengshan County / 衡山县建制沿革 see hengshan.gov (2018-04-03 )
- 撰文：朱家雄. "錢鍾書筆下的三閭大學". Archived from the original on 2020-07-15. Retrieved 2018-02-28.
- according to the Statistical Communiqué of Hengshan County on the 2017 National Economic and Social Development / 衡山县2017年国民经济和社会发展统计公报 see hntj.gov (2018-03-13) or hengshan.gov (2018-03-29)