China Postal Code Lookup

📖 Tool Introduction

Look up mainland China postal codes across 2,879 district-level records, by zip code, by place name, or by administrative division code.

Postal codes come up whenever you fill in a courier slip, send registered mail or type a delivery address. Enter a place name to get its six-digit code, or paste a code back in to find out which district it belongs to.

Searching by zip may return more than one row, because a single code often covers several neighbouring districts. In that case every match is listed and separated by province and city so you can tell them apart.

Searching by name matches loosely, so "Dongcheng" finds every record containing it, and pinyin is matched too, which helps when you only know how a place is pronounced. Searching by division code is the most precise route, since a six-digit code maps to exactly one district.

Every record carries its pinyin, useful for confirming how an unusual character is read and ready to copy. The whole database ships inside the plugin: queries never touch the network and nothing is uploaded. That design also means the result appears as you type rather than after a round trip, which matters when you are filling in a form and only need one field.

Postal codes in mainland China are six digits, where the first two point at the province and the next one narrows it further, so a code carries rough geography even before you look anything up. Reading one left to right is therefore a quick sanity check: if the first two digits do not match the province you expect, something in the address is probably wrong.

✨ Key Features

• 2,879 district-level postal codes covering every province, city and district
• Three search modes: reverse lookup by code, loose match by name, or exact match by division code
• Pinyin is searchable, so a place can be found from its sound alone
• Codes covering several districts list every match, separated by province and city
• Pinyin on every row, readable for unusual characters and ready to copy
• Data lives locally: no network, no upload, your input stays private

🚀 How to Use

1. Type a six-digit postal code, a place name, or a six-digit division code on the left
2. Choose a search mode on the right: by zip code, by place name, or by division code
3. Press search, or simply hit Enter
4. When searching by name you may get several rows, so use the province, city and pinyin columns to pick the right one
5. Copy result puts the summary on your clipboard

⚠️ Things to Note

• Data source: Compiled from published postal code records: 2,879 district-level entries with province, city and pinyin
• One code, several districts: A single postal code often covers neighbouring districts, so a code lookup can return several rows. Use the province and city columns to decide
• Name search: Name search is loose and matches province, city, district and pinyin, so different places sharing a name may all appear
• Works with division codes: A six-digit division code maps to exactly one district and is the most precise way to search. It pairs well with the division code lookup tool
• Privacy: The database ships inside the plugin and everything runs locally. Nothing you type is sent anywhere