Postal / ZIP Code Generator
Generate postal codes that match each country's official pattern: 5-digit US ZIPs, UK 'AA9 9AA' postcodes, Canadian 'A9A 9A9', Dutch '9999 XX' and every other format — for testing address validation and checkout flows.
Test data only. Everything on this page is randomly generated for software testing, QA, education and design. It does not belong to real people, accounts or devices. Never use generated data to register on services, deceive anyone or commit fraud — that is illegal.
How it works
- 01
Pick a country (and gender where available) so data follows the local format — names, streets, postal patterns and phone prefixes.
- 02
Hit Generate. Every value is produced in your browser with the correct checksum algorithm where one exists.
- 03
Copy any field, a whole section or everything at once — or export the batch as JSON / CSV.
By country
Locally-correct names, formats, prefixes and identifiers for each country:
By US state
FAQ
Are these postal codes real?+
They match the official format for each country and most will fall inside real ranges, but they are not verified against the national postal database.
Why does the UK format have letters?+
UK postcodes end with a digit-letter-letter pattern and start with one or two letters plus digits — our generator follows the standard 'A9A 9AA' shape.
Which countries use alphanumeric postcodes?+
The UK, Canada, the Netherlands, Ireland (Eircode) and Argentina, among others. Most other countries use 4-6 digits.