Zip Code Distance, Radius and Location API

The easy way to calculate distances, radius, and locations for zip codes.

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Try It!

Make your forms faster by auto-filling information when users enter a zipcode.

Click here for example code.

Free to Use

This API is freely available.
Simply register your application.

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Distance Between Zip Codes

The API allows you to quickly and easily figure out the distance between zip codes.

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Zip Codes in Radius

You can use the API to find all zip codes within a given radius from another zip code.

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Zip Codes to Location

The API can convert a zip code to the primary location for the zip code. This includes the city, state, latitude, longitude, and time zone information for the primary location. Click here for an example of auto-filling city and state in a form when a zip code is entered.

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Location to Zip Codes

You can use the API to determine possible zip codes for a city.

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Custom SQL Search

You can use the API build the WHERE clause for use in SQL statements to your own database. This allows you to create custom searches based on latitude and longitude.

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Find Close Zip Codes

The API can take a list of zip codes and match together those that are within a specified distance of each other.

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Real-Time Map

Need a real-time visualization of traffic or user actions on your website? Check out

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