Top Proximity Zip Code Finder API alternatives in 2025

As we move into 2025, the demand for location-based services continues to grow, leading developers to seek reliable and efficient APIs for zip code and proximity data. While the Proximity Zip Code Finder API has been a popular choice, there are several alternatives that offer unique features and capabilities. In this blog post, we will explore the top alternatives to the Proximity Zip Code Finder API, detailing their functionalities, pricing, pros and cons, ideal use cases, and how they differ from the Proximity Zip Code Finder API.

1. Zip Code Finder API

The Zip Code Finder API is a powerful tool that provides comprehensive information for every ZIP Code in the United States. It allows users to retrieve details by inputting ZIP Codes directly or exploring locations using city and state parameters.

Key Features and Capabilities

One of the standout features of the Zip Code Finder API is its ability to return a list of ZIP Code details matching the input parameters. This feature is crucial for applications that require accurate geographic data.

When using this feature, developers can input parameters such as "zip_code," "city," and "state" to retrieve specific ZIP Code details. This flexibility allows for direct lookups or broader searches based on geographic criteria.

[{"zip_code": "04101", "valid": true, "city": "Portland", "state": "ME", "county": "Cumberland County", "timezone": "America/New_York", "area_codes": ["207"], "country": "US", "lat": "43.6608", "lon": "-70.2613"}]

In this response, the fields include:

• zip_code: The ZIP Code queried.
• valid: Indicates if the ZIP Code is valid.
• city: The city associated with the ZIP Code.
• state: The state associated with the ZIP Code.
• county: The county in which the ZIP Code is located.
• timezone: The timezone for the ZIP Code area.
• area_codes: The area codes associated with the ZIP Code.
• country: The country of the ZIP Code.
• lat: Latitude of the ZIP Code location.
• lon: Longitude of the ZIP Code location.

This API is ideal for applications in e-commerce, marketing, logistics, and real estate, where accurate ZIP Code information is essential.

Want to try the Zip Code Finder API? Check out the API documentation to get started.

2. Zip Code USA API

The Zip Code USA API is designed to quickly retrieve precise location details within the United States. This API is efficient and accurate, making it a valuable tool for developers.

Key Features and Capabilities

One of the primary features of the Zip Code USA API is its ability to get location information by entering a US zip code. This straightforward approach allows developers to access detailed information about a specific zip code, including the corresponding city, state, timezone, and geographic coordinates.

{"zip_code":"90001","primary_city":"Los Angeles","state":"CA","timezone":"America/Los_Angeles","latitude":33.97,"longitude":-118.24}

In this response, the fields include:

• zip_code: The queried ZIP Code.
• primary_city: The primary city associated with the ZIP Code.
• state: The state associated with the ZIP Code.
• timezone: The timezone for the ZIP Code area.
• latitude: Latitude of the ZIP Code location.
• longitude: Longitude of the ZIP Code location.

This API is particularly useful for applications that require precise location data, such as logistics and delivery services.

Ready to test the Zip Code USA API? Try the API playground to experiment with requests.

3. Postal Code Location API

The Postal Code Location API provides detailed information on all U.S. zip codes and allows users to search by zip code, city, and state.

Key Features and Capabilities

This API allows users to enter a zip code and retrieve comprehensive data, including geographic coordinates, time zones, and more. This flexibility makes it easy to find zip codes for specific locations.

[{"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"}]

In this response, the fields include:

• zip_code: The queried ZIP Code.
• valid: Indicates if the ZIP Code is valid.
• city: The city associated with the ZIP Code.
• state: The state associated with the ZIP Code.
• county: The county in which the ZIP Code is located.
• timezone: The timezone for the ZIP Code area.
• area_codes: The area codes associated with the ZIP Code.
• country: The country of the ZIP Code.
• lat: Latitude of the ZIP Code location.
• lon: Longitude of the ZIP Code location.

This API is ideal for applications that require detailed geographic information, such as address validation and location-based services.

Ready to test the Postal Code Location API? Try the API playground to experiment with requests.

4. USA Zip Code Data API

The USA Zip Code Data API provides developers with access to a comprehensive database of US zip codes and related information.

Key Features and Capabilities

This API allows users to get US zip code data by inserting the zip code they are looking for in the parameter. This feature provides detailed information about the zip code, including city, state, timezone, and geographic coordinates.

[{"AreaCode":"412","CarrierRouteRateSortation":"D","City":"PITTSBURGH","State":"PA","County":"ALLEGHENY","Latitude":40.460122,"Longitude":-79.835972}]

In this response, the fields include:

• AreaCode: The area code associated with the ZIP Code.
• CarrierRouteRateSortation: The sortation for carrier routes.
• City: The city associated with the ZIP Code.
• State: The state associated with the ZIP Code.
• County: The county in which the ZIP Code is located.
• Latitude: Latitude of the ZIP Code location.
• Longitude: Longitude of the ZIP Code location.

This API is particularly useful for applications in logistics, e-commerce, and real estate, where accurate ZIP Code information is essential.

Want to try the USA Zip Code Data API? Check out the API documentation to get started.

5. Zip Code Details US API

The Zip Code Details US API offers accurate geolocation data and information for US zip codes, enhancing address validation and location-based services.

Key Features and Capabilities

This API allows users to retrieve information by zip code, providing essential details such as city, state, county, time zone, latitude, and longitude.

{"Code":200,"Description":"OK","Data":[{"ZipCode":"96162","City":"TRUCKEE","County":"NEVADA","State":"CA","TimeZone":"8","ZipLatitude":"39.326668","ZipLongitude":"-120.342310"}]}

In this response, the fields include:

• Code: The response code indicating success or failure.
• Description: A description of the response status.
• Data: An array containing detailed information about the ZIP Code.
• ZipCode: The queried ZIP Code.
• City: The city associated with the ZIP Code.
• County: The county in which the ZIP Code is located.
• State: The state associated with the ZIP Code.
• TimeZone: The timezone for the ZIP Code area.
• ZipLatitude: Latitude of the ZIP Code location.
• ZipLongitude: Longitude of the ZIP Code location.

This API is ideal for applications that require accurate geolocation data for address validation and location-based services.

Looking to optimize your Zip Code Details US API integration? Read our technical guides for implementation tips.

6. Postal Code Global API

The Postal Code Global API is a powerful and versatile tool that provides users with seamless access to a vast repository of zip code data from various regions around the world.

Key Features and Capabilities

This API allows users to get information by zip code, requiring the user to enter a zip code in the parameter. This feature provides comprehensive data about the postal code, including city names, state/province details, and geographic coordinates.

{"query":{"codes":["99950"],"country":null},"results":{"99950":[{"postal_code":"99950","country_code":"FI","latitude":"69.47290000","longitude":"25.95270000","city":"Karigasniemi","state":"Lapland"}]}}

In this response, the fields include:

• query: The query object containing the postal code and country code.
• results: The results object containing detailed information about the postal code.
• postal_code: The queried postal code.
• country_code: The country code associated with the postal code.
• latitude: Latitude of the postal code location.
• longitude: Longitude of the postal code location.
• city: The city associated with the postal code.
• state: The state or province associated with the postal code.

This API is particularly useful for applications that require accurate worldwide postal code data for location-based services, logistics, and e-commerce.

Want to use the Postal Code Global API in production? Visit the developer docs for complete API reference.

7. Postal Code to State API

The Postal Code to State API is a versatile tool that allows users to convert zip codes to their corresponding names or state codes.

Key Features and Capabilities

This API simplifies the process of associating zip codes with their respective states, providing accurate and reliable information for a wide range of applications. Users can insert a zip code in the parameter to retrieve the state name or state code.

{"state":"NY"}

In this response, the fields include:

• state: The state name or code associated with the provided zip code.

This API is particularly useful for businesses that need to validate customer locations, segment audiences, or tailor services based on geographic data.

Need help implementing the Postal Code to State API? View the integration guide for step-by-step instructions.

8. UK Geolocation API

The UK Geolocation API provides precise coordinates and distances, making it an invaluable tool for applications that require accurate location data.

Key Features and Capabilities

This API allows users to calculate distances between any two zip codes, leveraging a robust and up-to-date geodatabase. This feature is essential for optimizing delivery routes and enhancing user experiences with location-based features.

{ "A": { "postcode": "CF10 3NP", "latitude": 51.48563, "longitude": -3.177216 }, "B": { "postcode": "CF10 3RB", "latitude": 51.482242, "longitude": -3.181516 }, "Distance": 0.48016549093206767}

In this response, the fields include:

• A: The first postcode with its latitude and longitude.
• B: The second postcode with its latitude and longitude.
• Distance: The calculated distance between the two postcodes.

This API is ideal for logistics, real estate, and location-based services that require accurate distance calculations.

Ready to test the UK Geolocation API? Try the API playground to experiment with requests.

9. Global Postcode Information API

The Global Postcode Information API provides accurate worldwide postal code data for location-based services, logistics, e-commerce, and more.

Key Features and Capabilities

This API allows users to get location information by indicating a postal code and a country code in the parameters. This feature provides comprehensive data about postal codes, neighborhoods, administrative areas, and associated geographic details.

{ "results" : [ { "address_components" : [ { "long_name" : "90001", "short_name" : "90001", "types" : [ "postal_code" ] }, { "long_name" : "Firestone Park", "short_name" : "Firestone Park", "types" : [ "neighborhood", "political" ] }, { "long_name" : "Los Angeles County", "short_name" : "Los Angeles County", "types" : [ "administrative_area_level_2", "political" ] }, { "long_name" : "California", "short_name" : "CA", "types" : [ "administrative_area_level_1", "political" ] } ] } ] }

In this response, the fields include:

• results: The results object containing detailed information about the postal code.
• address_components: An array of components that make up the address, including postal code, neighborhood, county, and state.
• long_name: The full name of the address component.
• short_name: The abbreviated name of the address component.
• types: The types of the address component, indicating its role in the address structure.

This API is particularly useful for applications that require accurate worldwide postal code data for location-based services, logistics, and e-commerce.

Ready to test the Global Postcode Information API? Try the API playground to experiment with requests.

Conclusion

In conclusion, while the Proximity Zip Code Finder API remains a strong contender in the realm of location-based services, the alternatives discussed in this post offer unique features and capabilities that cater to various developer needs. Whether you require detailed ZIP Code information, accurate geolocation data, or the ability to convert ZIP Codes to state names, there is an API that fits your requirements. Each API has its strengths, and the best choice will depend on your specific use case and integration needs. By exploring these alternatives, developers can enhance their applications and provide users with accurate and reliable location-based services.