The Zip Code API provides the following functions:

• Distance Between Zip Code API – The API allows you to quickly and easily figure out the distance between zip codes.
• Zip Codes in Radius API – You can use this API to find all zip codes within a given radius from another zip code.
• Zip Code to City and State API and Zip Code to Latitude/Longitude API – The API can convert a zip code to the primary location for the zip code. This includes the city, state, latitude, and longitude for the primary location.
• City to Zip Code – This API looks up the Zip Code based on the City and State.

ZipCodeAPI Video

Here is a quick video overview: