USA
UK
Canada
60+
Bidirectional
Recent Lookups
No recent lookups. Search for a postal code or address to see history.
About This Postal Code Finder
This tool uses open data APIs to provide accurate bidirectional postal code information for over 60 countries. No API key or registration required — simply enter an address to get its postal code, or input a postal code to discover its city, state, and country. Perfect for shipping, form validation, or general reference.
- Supports full addresses, street names, or city-only queries.
- Reverse lookup from postal code to location details.
- Search history saved locally for quick reference.
- Data sourced from official postal services and open geographic databases.
Postal Code FAQ
Data is sourced from official postal services and open geographic databases. City-level queries are highly reliable; street-level accuracy depends on the country and the specificity of the address provided.
Over 60 countries including US, UK, Canada, Australia, Germany, France, Japan, India, Mexico, Brazil, and most European nations. Select your country from the dropdown.
Yes! Use the "Postal Code → Address" tab. Enter a valid postal code and select the country to get the corresponding city, state/province, and country.
Yes. The APIs used are open and require no payment. There are no hidden costs or premium tiers.
Free public APIs often provide postal codes at the city or district level. For precise street-level codes, official postal service APIs (like USPS) are required, which typically need registration and may have usage fees.
Yes, your recent lookups are stored locally in your browser for convenience. You can clear them anytime using the "Clear History" button. No data is sent to our servers.