Your Ultimate Resource for ZIP Codes, Postcodes & Address Lookup Worldwide
A postal code (also known as ZIP code, postcode, PIN code, or postal index number) is a series of letters and/or digits that are added to a postal address to assist in sorting mail.
US ZIP codes are 5-digit numbers that identify a specific geographic area for mail delivery.
Format: 12345 or 12345-6789 (ZIP+4)
Examples: 10001 (New York), 90210 (Beverly Hills), 33101 (Miami)
UK postcodes are alphanumeric codes that identify a specific area for mail delivery.
Format: AA9A 9AA or A9A 9AA or A9 9AA
Examples: SW1A 1AA (Buckingham Palace), M1 1AA (Manchester)
Canadian postal codes are alphanumeric codes in the format ANA NAN.
Format: A1A 1A1
Examples: M5H 2N2 (Toronto), V6B 1A1 (Vancouver)
Chinese postal codes are 6-digit numeric codes that identify administrative regions.
Format: 123456
Examples: 100000 (Beijing), 200000 (Shanghai), 510000 (Guangzhou)
Japanese postal codes are 7-digit numeric codes that identify specific delivery areas.
Format: 123-4567
Examples: 100-0001 (Tokyo), 530-0001 (Osaka)
Find postal codes for 24 major Chinese cities including Beijing, Shanghai, Guangzhou, and Shenzhen.
Search China ZIP CodesSearch postal codes for major cities worldwide across all continents.
Search Global Postal CodesAnalyze text with word count, character count, and keyword density analysis.
Use Text AnalysisPostal Code is a general term used internationally to describe codes that help sort and deliver mail. ZIP Code is a specific type of postal code used in the United States. "ZIP" stands for "Zone Improvement Plan" and was introduced by the US Postal Service in 1963.
US ZIP codes have 5 digits in their basic format (e.g., 12345). Extended ZIP codes, known as ZIP+4, add an additional 4 digits separated by a hyphen (e.g., 12345-6789).
You can find your postal code by using online search tools, official postal service websites, Google search, maps applications, visiting your local post office, or checking phone directories.
Yes, you can often determine the general city and state from a US ZIP code. The first digit of a ZIP code indicates a group of states, and the second and third digits narrow down the region.
An invalid postal code typically means the code doesn't follow the correct format for that country, doesn't exist in the postal system, or there's a typographical error.
No, postal codes are not the same worldwide. Each country has its own postal code system with different formats, lengths, and structures.
The concept of postal codes dates back to the early 20th century. The first postal code system was introduced in Ukraine in 1932, but it was discontinued in 1939.
Postal codes became widely adopted in the 1960s and 1970s as postal services around the world sought to improve mail sorting efficiency.
With the advent of computer technology and automated sorting machines, postal codes became even more important for automated mail sorting, address validation, and geographic data analysis.
Postal codes are essential tools for modern mail delivery and address management. Understanding how they work, their formats, and how to find them is crucial for anyone dealing with addresses, whether for personal use, business, or development purposes.
This comprehensive guide covers the basics of postal codes, their formats across different countries, how to find them, and answers to common questions. Whether you're looking for a US ZIP code, a UK postcode, or postal codes from any other country, the tools and information provided here should help you find what you need.
For the most accurate and up-to-date postal code information, always refer to official postal service websites or reliable third-party services like PostCode.Blog.