Data Last Updated: November 1, 2022



Multiple Function ZIP Code API

  • Free API with Premium Levels
  • RESTful Service with JSON/XML Response
  • Covers U.S. and Canada
  • Find ZIP Code of Address
  • Form Autocompletion & Validation
  • Distance, Radius, and more
  • We use Accurate and Licensed Data

Start Using the API See all Samples Review the Documentation

Quick ZIP Details

Quickly retrieve the basics of a given ZIP Code or Postal Code: City, State, County, Latitude, and Longitude.

See Sample

Full ZIP Code Details

Retrieve all information on a given U.S. ZIP Code or Canadian Postal Code.

See Sample

Find ZIP of Address

Supply an address, city, and state to get the ZIP Code and ZIP+4 (U.S. Only).

See Sample

Get All ZIP Codes

Supply a State/Province to get all ZIP Codes or Postal Codes that are currently valid.

See Sample

ZIP Code Radius Finder

Find all ZIP Codes within X miles from the ZIP Code of your choice.

See Sample

Radius Finder by Lat/Lon

Supply a Latitude/Longitude coordinate to find all ZIP Codes within the selected radius.

See Sample Try it by Map

ZIP Code Distance

Calculate the distance between any two U.S. ZIP Code and/or Canadian Postal Codes.

See Sample

Other ZIP Code Distance Calculators

Calculate the distance from a ZIP Code to a Latitude/Longitude point. Also try the Lat/Lon calculator.

See Sample Calculate by Lat/Lon
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Portions of data provided by and © United States Postal Service 2022 and Canada Post 2022. is a non-exclusive licensee of the United States Postal Service. Postal Code OM is a registered trademark of Canada post.