According to the official website information of the postal code library, the postal code of Haidian District in Beijing is 100080, which adopts a four-level six-digit coding structure, and the first two digits of 10 represent Beijing; The third digit 0 represents the postal area of Beijing; The fourth digit 0 indicates the postal area of Haidian District; The last two digits, 80, represent Haidian District Delivery Office.

There are many universities in Haidian District, including Peking University, Tsinghua University, China Renmin University and Beijing Normal University. The Summer Palace, Yuanmingyuan and Xiangshan are all in Haidian.