Hanoi postal code, also known as Zip Code/Postal Code, is an important series of numbers that helps determine the location for mail and parcel delivery. The general postal code of Hanoi city is 10000. However, to ensure absolute accuracy, each district, and even each ward and commune will have a separate 5-digit code.
Using the correct postal code not only helps shorten delivery time but also minimizes the risk of wrong delivery or lost goods, especially in the context of strong e-commerce development.
Hanoi 5-digit postal code structure
According to the regulations of the Ministry of Information and Communications of Vietnam, the national postal code consists of 5 digits with the following structure:
- First two characters: Identify the province or centrally-run city. Hanoi's code starts with numbers from 10 to 13.
- First three or four characters: Identify the district, county or equivalent administrative unit.
- Five characters: Specifically identifies the assigned object such as ward, commune, post office or important agencies.

Postal codes of some central districts in Hanoi
Below is a reference table of postal codes of some wards representing central districts, giving you an overview of how codes are divided in the capital:
| District | Ward/Commune (Representative) | Zip Code |
|---|---|---|
| Hoan Kiem | Hoan Kiem Ward | 11024 |
| Ba Dinh | Ba Dinh Ward | 11120 |
| Dong Da | Dong Da Ward | 11527 |
| Hai Ba Trung | Hai Ba Trung Ward | 11626 |
| West Lake | Tay Ho Ward | 11214 |
| Cau Giay | Cau Giay Ward | 11314 |
| Youth | Thanh Xuan Ward | 11417 |
| Hoang Mai | Hoang Mai Ward | 11720 |
| Long Bien | Long Bien Ward | 11814 |
| Ha Dong | Ha Dong Ward | 12123 |
Note: These are just the codes of some typical wards. To get the exact code for a specific address, you should look up according to the instructions below.
How to look up Hanoi postal code quickly and accurately
To find the postal code for a specific address in Hanoi, you can use the official and reliable online tools provided by Vietnam Post .
Look up on the national website
The most efficient method is to visit the national postal code lookup websites:
- Visit website http://mabuuchinh.vn or http://postcode.vn .
- Enter the address name you want to find (for example: "Lieu Giai Ward, Ba Dinh, Hanoi") in the search box.
- The system will return the correct postal code for that address.

Some important notes when using Zip Code
- Fill in the full address: The postal code is only a supporting factor, you still need to clearly and fully fill in the recipient's information, house number, street name, ward/commune, district/county.
- Write the code correctly: The postal code consists of 5 consecutive digits, with no special characters or spaces.
- Code location: Postal codes are usually written after the province/city name in the address section.
- Distinguishing from telephone area code: Postal code (used for mail) is completely different from telephone area code (used for calls). Hanoi's telephone area code is 24.
Understanding and correctly using Hanoi postal code will help your sending and receiving mail become more convenient, efficient and safer.
Source: https://baolamdong.vn/ma-buu-chinh-ha-noi-huong-dan-tra-cuu-zip-code-chinh-xac-400854.html






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