According to the national postal code query, the postal code of Donglan, Hechi, Guangxi is 547400. Among them, 54 represent Guangxi Province. 7 represents Hechi City, 4 represents Donglan, and 00 represents the specific delivery area. Donglan, belonging to Hechi City, Guangxi Zhuang Autonomous Region, is located in the northwest of Guangxi, on the southern edge of Yunnan-Guizhou Plateau and in the middle reaches of Hongshui River. Covering an area of 24 15 square kilometers, it governs 6 towns and 8 townships, 147 village committees and 3 communities. As of June 7, 2022, the total population was 3 1.38 million.