The exact postal code designated for local government areas, local post offices, government offices or embassies and consulates can be searched on National Postal Code Website.
Structure
The postal code system of Vietnam has officially been changed from 6 digits to 5 digits. Each country has its own separate postal code or zip code system. The postal code of Vietnam is composed of 5 digits, with the following meanings:[2][3]
The first digit determines the area code.
The first two characters identify the centrally-governed province or city.
The first four characters identify the district or corresponding administrative unit.
Based on this, the postal code system of Vietnam has been changed to optimize and improve the domestic mail and parcel delivery system.
List
Below is a table listing the postal codes and telephone area codes in Vietnam (according to Vietnam Post, under the VNPOST corporation). Note: The provinces and cities are listed in order from North to South, and the centrally-governed cities are highlighted in bold.[4][5][6]