About this tool
Postcodes are the part of an address that's easiest to get wrong and the most important to get right. This postcode database brings together US ZIP codes, UK postcodes, Canadian postal codes, Australian postcodes and German PLZ prefixes, browsable by country and state/province.
For developers, testers and logistics work, the main value is not having to dig through references elsewhere: want to know which ZIP ranges Los Angeles uses, what a London postcode looks like, or the PLZ prefix for a German city β it's all here.
Common use cases
- Browse common postcode ranges per state/province to build realistic test data
- Verify whether a ZIP prefix matches its city/state, catching mismatched addresses early
- Look up postal code formats for multi-country data entry
- Generate test addresses with plausible, real-format postcode prefixes
FAQ
- Are these postcodes real?
Prefixes correspond to real countries, states/provinces and city ranges (e.g. LA 900xx, London SW). Individual full codes may not all be currently assigned.
- Can I look up one specific code?
Browse by country and region; for a precise full code, use the ZIP field from a generated address.
- Which countries are covered?
The US, UK, Canada, Australia and Germany, with postcode data per state/province or region.