Zip Code API - Free Postal Code Validation

The best way to get accurate zip code data for your application.

{
  "query": {
    "codes": [
      "99501"
    ],
    "country": "us"
  },
  "results": {
    "99501": [
      {
        "postal_code": "99501",
        "country_code": "US",
        "latitude": "61.21160000",
        "longitude": "-149.87610000",
        "city": "Anchorage",
        "state": "Alaska",
        "city_en": "Anchorage",
        "state_en": "Alaska",
        "state_code": "AK"
      }
    ]
  }
}

Features

The Zip Code API is a free web service that allows developers to access worldwidezip code data. The API is simple to use and easy to integrate into your applications.

Worldwide data

210+ countries

10k requests every month

REST API

`GET /search`

Zip code to geolocation

You can get information about the main location for one or multiple postal codes by filtering by country. For example, to find information for the two postal codes 99501 & 60606, you would search worldwide.

Documentation

`GET /distance`

Calculate distances between zip codes

This endpoint calculates the distance between one and another (or multiple) postalcodes. Results are available in km or miles. For example, it will return the distance between the US postalcode 99501 and 60606.

Documentation

FAQ

What is Zipcodestack?

A completely free REST API and the best way to get accurate zip code data for your application

How does it work?

Zipcodestack provides a set of REST APIs that are easily implemented in any programming language.

Is Zipcodestack entirely free?

Yes, the API is completely free for up to 10 000 requests per month.

Do you offer paid plans?

No, paid plans are currently not offered.

The best way to get accurate zip code data for your application.