According to the postal code database of Hebei Province, the postal codes of Anci District, Guangyang District, Gu 'an County, Yongqing County and Xianghe County of Langfang City are all 065000.

1 This number represents North China, 6 represents Hebei Province, 5 represents Langfang City, 4 represents Anci District, and 5 represents the delivery office.