Daishan County, under Zhoushan City, Zhejiang Province. One of the 12 island counties in the country. It is located in the northern part of the coast of Zhejiang Province and the central part of Zhoushan Islands New Area, connected to the open sea in the east; Huang Dayang and Xiaobanmen waterways in the southeast, connected to the sea area of Putuo District; Grey Turtle Ocean in the southwest; Gumen waterway in the south, intersecting with the sea area of Dinghai District; Seven Sisters and Eight Sisters Islands in the west, intersecting with the sea area of Pinghu and Cixi; Chuanhu Islands in the north, neighboring with the sea area of Shengsi County, with a total area of 5,242 sq. km. in 2022, DaiShan County had a household registration population of 16.8 million, and a resident population of 21.5 million. population was 168,000, and the resident population was 211,500. As of October 2022, Daishan County has 6 towns and 1 township under its jurisdiction. The county government is located at No. 681 Yushan Avenue in Gaoting Township.
In 1949, Wengzhou County was established from Dinghai County. 1950, Wengzhou County was abolished and incorporated into Dinghai County. 1953, Dai Shan County was established from Dinghai County. 1958, Dai Shan County was withdrawn and incorporated into Zhoushan County. 1962, Dai Shan County was restored; with a history of thousands of years of fishing and salting, Dai Shan County is one of the top ten key fishery counties in China, and the largest salt production base of Zhejiang Province, with an annual production of salt accounting for more than 50% of the total amount of salt produced in the province. Above.
In 2022, Daishan County gross regional product of 75.36 billion yuan, an increase of 18.0% over the previous year. Among them, the added value of primary industry is 3.55 billion yuan, the added value of secondary industry is 60.98 billion yuan; the added value of tertiary industry is 10.83 billion yuan, and the ratio of the structure of the three industries is 4.7:80.9:14.4.