Haining  (Chinese: 海宁市; pinyin: Hǎiníng shì) is a county-level city in Zhejiang Province, China, and under the jurisdiction of Jiaxing. It is in the south side of Yangtze River Delta, and in the north of Zhejiang. It is 125 kilometers west of Shanghai, and 61.5 kilometers east of Hangzhou, the capital of the province. To its south lies the Qiantang River. The city has a land area of 700.5 sq. kilometers and at the 2010 census, hada population of 806,966 inhabitants even though its built-up (or metro) area is smaller.