Haidian, Beijing

District in Beijing, People's Republic of China

Haidian (Chinese: 海淀区; pinyin: Hǎidiàn Qū) is a northwest urban district of Beijing, bordering Xicheng and Fengtai. It is 431 km² (166 sq mi) in area, making it the second-largest district in urban Beijing area (after Chaoyang), and is home to 3,133,469 inhabitants as of November 2020. According to the latest 2025 census data, the population of Haidian District is 3.122 million.

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