Zip Code API - Free Access to Worldwide Postal Code Data

Lookup postal codes, calculate distances and much more with our free zip code api.

200+ Countries
5000 Free Requests
Scalable Pricing

{
   "results":{
      "10005":[
         {
            "postal_code":"10005",
            "country_code":"US",
            "latitude":"40.70560000",
            "longitude":"-74.00830000",
            "city":"New York",
            "state":"New York",
            "state_code":"NY",
            "province":"New York",
            "province_code":"061"
         }
      ]
   }
}

Features & API Endpoints

worldpostallocations.com is the perfect tool to perform postal code validation, lookups and other calculative tasks, such as postal code distance calculations. Worldpostallocations offers a wide range of endpoints that give you access to any type of data you might need. Read our full documentation here.

GET POST Code to location

Receive information about the primary location behind one postal code. You may also filter by country. The following example will return information for the postalcode 10005. The search is conducted worldwide.

GET https://api.worldpostallocations.com/v1/search?apikey=YOUR-APIKEY&zip_code=10005&country_code=US

Documentation

GET POST Codes by city

Receive a list of all postal codes within a given city and country from all around the world. The following example will a list of postalcodes that are associated with the city Amsterdam.

GET https://api.worldpostallocations.com/v1/code/city?apikey=YOUR-APIKEY&city=Amsterdam&country_code=NL

Documentation

GET POST Radius search

This endoint will convert a list of submitted postalcodes into a list of postalcode pairs that are located within given distance to each other. The following example will return a list of postalcodes that are located within a 100km radius of the postalcode 10005.

GET https://api.worldpostallocations.com/v1/radius?apikey=YOUR-APIKEY&zip_code=10005&radius=100&country_code=US

Documentation

GET POST Distance calculation

This endpoint allows you to calculate the distance between one and another (or multiple) postalcodes. Results are available in km or miles. The following example will return the distance between the US postalcode 10005 and 10006, 10007.

GET https://api.worldpostallocations.com/v1/distance?apikey=YOUR-APIKEY&zip_code=10005&compare=10006%2C10007&country_code=US

Documentation

GET POST Codes by state

Receive a list of all postal codes within a given state and country. The following example will a list of postalcodes that are associated with the state Noord-Holland in the Netherlands.

GET https://api.worldpostallocations.com/v1/code/state?apikey=YOUR-APIKEY&state_name=Noord-Holland&country_code=NL

Documentation

GET POST Codes within a distance

This endpoint returns a list of postalcode pairs that are within a given distance to each other.The following example will return the postal code pairs that are within a 100km distance based on the list of postalcodes: 10005, 10006, 10009, 90001.

GET https://api.worldpostallocations.com/v1/match?apikey=YOUR-APIKEY&zip_codes=10005%2C10006%2C10009%2C90001&distance=100&country_code=US

Documentation

Available for all common programming languages

To provide you with the best developer experience possible, we also created a Postman collection that covers all of our endpoints.

Frequently asked questions

: Yes. We also offer you a 20% discount if you choose an annual subscription plan.
: No, we only charge you for successful responses. Invalid requests are not going to affect your usage volume!
: Our API handles millions of API requests on a daily basis. The amount of available concurrent connections depends on your plan. View our pricing to see different available options.
: We accept all common payment methods, including credit cards (MasterCard, Visa, Diner's Club, American Express). Enterprise and high-volume customers may request annual bank transfer payments to be enabled.

: The plans vary according to the number of the available search requests. Also, our larger plans come with unlimited support and come with a service level agreement (SLA). No matter how small or big your project is, there is the right plan for you.
: worldpostallocations.com is a postal code API that returns information about postal codes from all around the world. It allows you to run lookups, distance calculations, radius searches and much more.
: We are constantly tracking and monitoring the uptime of our service. We are doing every effort to ensure a maximum of availability and reliability, leading to an uptime of 99.9%, calculated on the past 12 months. You can see more detailed information about our API's status, here.
: Sure! We will send you an email notification when your monthly usage hits 90% and 100%, so you have enough time to react and adapt your plan.

Still unsure? Talk to us!

Do not hesitate to contact us! We are available through the following channels:

Customer Chat

contact@worldpostallocations.com

or Contact Form

Zip Code API - Free Access to Worldwide Postal Code Data

Features & API Endpoints

Available for all common programming languages

Free

What's included

Developer

What's included

Small

What's included

Medium

What's included

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Frequently asked questions

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