
Constant Contact
Fetchify
SAP Data Management
Smarty
dotdigital Engagement Cloud
Melissa Data Quality
Ideal postcodes
The Standard in Global Address Verification
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
Which is more popular?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | loqate.com | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

Loqate is the most advanced software for capturing, verifying and enriching address data globally - delivering the unrivalled precision businesses need.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
What each product offers, as listed by its team.

Possible disadvantages
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Overall verdict
Why this product is good
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Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Loqate and ZIP Code API. For example, how are they different and which one is better?
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Using Loqate’s location software, you can allow your users to find the nearest retail store, hotel, restaurant or other venue near them.
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When comparing Loqate and ZIP Code API, you can also consider the following products.

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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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Fetchify delivers fast, accurate address, email, phone and bank validation tools that help businesses capture clean, verified customer data, reduce failed deliveries and improve checkout experiences worldwide.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Sap Data Management is a flagship enterprise information management solution that facilities the organizations to manage data quality, migration of data, text analytics, and interconnectivity with both SAP and non-SAP system.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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