According to the postcode database, the postcode of Ningdu County, Ganzhou City, Jiangxi Province is 342800. The top two 34 represent Jiangxi Province; The second representative of the third place is Ganzhou City; The fourth 8 represents Ningdu County; The last two digits 00 indicate the specific delivery area.

Ningdu County, which belongs to Ganzhou City, Jiangxi Province, is located in the southeast of Jiangxi Province and the north of Ganzhou City, with a total area of 4,053 square kilometers. It is the core county of the former Central Soviet Area, the key county of the national poverty alleviation and development work, the extended county of the western development policy, and the extremely poor county in the Luo Xiao Mountains.