According to the postal code database, the postal code of Jialing District, Nanchong City, Sichuan Province is 637500, with the first two digits 63 representing Sichuan Province, the third digit 7 representing Nanchong City, the fourth digit 5 representing Jialing District, and the last two digits 00 representing the specific delivery area.

Jialing District, which belongs to Nanchong City, Sichuan Province, is located in the northeast of Sichuan Basin, the southwest of Nanchong City and the west bank of the middle reaches of Jialing River.