Postal Zone Locator API

Postal Zone Locator API

The Postal Zone Locator API offers comprehensive details about every U.S. zip code and enables searches based on zip code, city, and state.

About the API:  

The Postal Zone Locator API is a robust solution that provides detailed information on all zip codes in the United States. Whether entering specific codes or searching through city and state parameters, this API provides comprehensive data to meet a variety of needs.

Equipped with the Postal Zone Locator API, users gain access to a plethora of details by ZIP code, spanning geographic coordinates, time zones and more. This depth provides users with valuable information about various regions of the country.

An eminent feature of the Postal Zone Locator API lies in its adaptable input methods. Users have the freedom to directly enter zip codes or use city and state parameters for seamless searches, which streamlines the process of finding zip codes for selected locations.

In addition, users benefit from the API's versatility and ease of integration. Whether it's websites, mobile apps or desktop applications, the integration of zip code functionality enriches the user experience and increases the usefulness of location-based services.

In essence, the Postal Zone Locator API emerges as an indispensable asset for anyone seeking intricate knowledge about U.S. zip codes. Whether optimizing operations or developing location-centric services, this API stands as a one-stop solution. With its flexible input mechanisms, extensive data sets and robust performance, the Postal Zone Locator API proves to be a powerful tool for unraveling the geographic tapestry of the United States.


What this API receives and what your API provides (input/output)?

It will receive parameters and provide you with a JSON.


What are the most common uses cases of this API?

  1. Address Validation: Verifying addresses by matching them with corresponding ZIP Codes for accuracy.

    Location-Based Services: Enhancing apps with features like local weather, businesses, and demographics based on ZIP Code.

    Delivery Logistics: Optimizing delivery routes and estimating delivery times based on ZIP Code data.

    Marketing Campaigns: Targeting specific geographic areas for marketing efforts by analyzing ZIP Code demographics.

    Sales Territory Planning: Dividing sales territories based on ZIP Code data to allocate resources effectively.


Are there any limitations to your plans?

Besides the number of API calls available for the plan, there are no other limitations.

API Documentation


To use this endpoint you will have to indicate a zip code, and you will also have optional parameters where you can indicate a city and state.


Zip Code - Endpoint Features
Object Description
city [Optional]
state [Optional]
zip [Required]
Test Endpoint


                                                                                                                                                                                                                            [{"zip_code": "97202", "valid": true, "city": "Portland", "state": "OR", "county": "Multnomah County", "timezone": "America/Los_Angeles", "area_codes": ["971"], "country": "US", "lat": "45.4803", "lon": "-122.6451"}]


curl --location --request GET ' Hills&state=California&zip=90210' --header 'Authorization: Bearer YOUR_API_KEY' 


API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Postal Zone Locator API REST API, simply include your bearer token in the Authorization header.


Header Description
Authorization [Required] Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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To use this API, users must enter U.S. zip codes. Optionally, they can specify a city or state to obtain geographic information about it.

The Postal Zone Locator API designed to provide users with geographic location information associated with zip codes (also known as ZIP codes) from around the world.

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