The postcode of longhu town, xinzheng city is 45 1 19 1. According to the query of China Post Network, the postal code of xinzheng city is 45 1 100, and the postal code of longhu town, xinzheng city is 4511. Postal code is a coding method that a country or region divides the whole country in order to realize the automation of mail sorting and the digitalization of postal network and speed up the delivery of mail.