ZipCodes
Postal Code API
1M+ postal codes across US, Mexico & Canada
North America
One Postal Code API
A single API for US, Mexico, and Canada postal code data — plus plug-and-play components to ship faster.
Try the API
Look up a real postal code and see exactly what the API returns.
GET https://zipcodes.c9sd.com/api/v1/postal-codes/US/90210
Type a postal code above to see a live response.
Register to get your own API token once these endpoints require authentication.
Full country coverage
United States
40,979 codes
Mexico
144,633 codes
Canada
900,676 codes
Supports your favorite stack
Ultra-Low Latency
Global edge network ensures responses in under 30ms regardless of requester location.
One schema, three countries
The same lookup and validation components work for US, Mexico, and Canada postal codes.
Premium support
Person to person support