The Postal Code to State API provides a way to retrieve the state associated with a given zip code in the United States.

The API requires the input of a valid zip code in the United States.

The API response is in JSON format, which includes the state associated with the zip code provided.

It is advisable to consult the API documentation or terms of use for possible limits.

If an invalid or non-existent zip code is provided, the API response may include an error message or indicate that the zip code was not found.

The "Converter Zip code to State" endpoint returns a JSON object containing the state name or code associated with the provided zip code. The "Zip Code Data" endpoint returns an array of detailed information, including city, county, area code, and geographic coordinates related to the specified zip code.

Key fields in the "Zip Code Data" response include "City," "State," "County," "Latitude," "Longitude," and "TimeZone." For the "Converter Zip code to State" endpoint, the primary field is "state," which indicates the corresponding state for the zip code.

The response data is structured in JSON format. For the "Converter Zip code to State" endpoint, it returns a simple key-value pair. The "Zip Code Data" endpoint returns an array of objects, each containing multiple fields related to the zip code, allowing for detailed analysis.

The "Converter Zip code to State" endpoint provides the state name or code for a given zip code. The "Zip Code Data" endpoint offers comprehensive details, including city names, county information, area codes, and geographic coordinates, enhancing location-based services.

Both endpoints accept a valid US zip code as a parameter. Users must ensure the zip code is formatted correctly (5 digits) to receive accurate responses. Invalid or non-existent zip codes may result in error messages.

Users can leverage the returned data for various applications, such as validating addresses, segmenting marketing campaigns, or calculating shipping costs. For example, the latitude and longitude fields can be used for mapping services or geolocation features in applications.

Data accuracy is maintained through regular updates and validation against official postal databases. The API ensures that the information provided reflects the most current state and geographic data available for US zip codes.

Typical use cases include address verification for e-commerce, regional targeting for marketing campaigns, and geolocation services in mobile apps. Businesses can enhance customer experiences by providing localized content based on the retrieved state information.

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