Hengyang (simplified Chinese: 衡阳; traditional Chinese: 衡陽; pinyin: Héngyáng) is the second largest city of Hunan Province, China. It straddles the Xiang River about 160 km (99 mi) south of the provincial capital of Changsha. Its built-up (or metro) area made of 4 out of 5 urban districts was home to 1,075,516 inhabitants at the 2010 census.