Zippopotam.us
Free, easy to use postal code lookup service
Gain valuable insights about your users' location by looking up their postal code.
Easily enable location-based features in your application.
Lightning Fast
Quickly execute postal code lookups, city to postal code lookups, and more.
International Coverage
Coverage in countries such as United States, Canada, United Kingdom, and more!
Unrestricted
No hard limits or restrictions of any kind. All at no cost.