Zhoushan, a prefecture-level city under the jurisdiction of Zhejiang Province, is a city in the central area of the Yangtze River Delta and an important city in Shanghai metropolitan area. It is located in the northeast of Zhejiang Province, bordering the East China Sea in the east, Hangzhou Bay in the west and Shanghai in the north. The terrain inclines from southwest to northeast. The southern island is large, high in altitude and densely arranged. The northern island is small, low-lying and sparsely distributed; Surrounded by the sea, it is a subtropical monsoon climate, warm in winter and cool in summer, mild and moist, and full of light. Zhoushan has jurisdiction over 2 districts and 2 counties. The territory is 182 kilometers long from east to west and 169 kilometers wide from north to south, with a total area of 22,200 square kilometers, including 20,800 square kilometers of sea area. According to the seventh census data, as of midnight on November 1, 2020, Zhoushan's permanent population is 1.165 million.

Zhoushan is backed by Shanghai, Hangzhou, Ningbo and other large and medium-sized cities and the vast hinterland of the Yangtze River Delta. Facing the Pacific Ocean, Zhoushan has a strong geographical advantage. It is located at the junction of China's North-South coastal route and the Yangtze River channel. In China, it has the Daizong Commodity Trading Management and Supervision Center approved by The State Council.

In 2021, Zhoushan achieved a gross regional product of 170.362 billion yuan, an increase of 8.4% over 2020.