PostalDataPI VS usZIPCodes.org

Compare PostalDataPI VS usZIPCodes.org and see what are their differences

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PostalDataPI

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

usZIPCodes.org

Use our free ZIP Code Analysis Tool to find city, state, county, population, and timezone details for any U.S. ZIP code. Fast, accurate, and privacy-safe lookup.

Landing page //
2026-04-08

PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate — $0.000028 per query with no tiers or subscriptions.

What you get back: Up to 18 metadata fields per postal code — city, state/region, coordinates, timezone, three levels of administrative hierarchy, elevation, and more. Sub-5ms cached responses.

Works everywhere: US ZIP codes, UK postcodes, German PLZ, Japanese postal codes, Canadian FSAs, and 230+ more. Format normalization handles case, spacing, and hyphen variations automatically.

Get started in 60 seconds: 1,000 free queries on signup, no credit card required. SDKs for Python and Node.js. MCP server for AI agents (Claude, Cursor, etc.).

Built for developers: REST API, consistent JSON responses across all countries, OpenAPI spec, llms.txt for AI agent discovery.

Zip Code Analysis Tool //
2025-12-27

ZIP Code Analysis Tool is a web-based application that allows users to search any US ZIP code and instantly view detailed location-based data. The tool provides accurate information including city, state, county, latitude, longitude, and population statistics. It is designed for researchers, marketers, businesses, and individuals who need quick and reliable ZIP code insights without any custom setup or consultation.

PostalDataPI

Website: postaldatapi.com
Pricing URL: Official PostalDataPI Pricing
$ Details: -
Platforms: -
Release Date: 2026 March
Startup details
Country: United States
State: ID
City: Eagle
Founder(s): Thom Ives
Employees: 1 - 9

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usZIPCodes.org

Website: uszipcodes.org
Pricing URL: -
$ Details: free
Platforms: Desktop Mobile Laptop Tablet Mac
Release Date: 2025 October
Startup details
Country: India
State: Maharashtra
City: Mumbai

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PostalDataPI features and specs

Specialized Postal Data
PostalDataPI focuses specifically on postal and address-related data, providing dedicated endpoints for ZIP code lookups, address validation, and geographic postal information, making it a niche solution for mailing and logistics needs.
Simple API Integration
The API appears to offer straightforward RESTful endpoints that are relatively easy to integrate into existing applications, requiring minimal setup and configuration for developers.
Useful for Address Validation
The service can help businesses validate and standardize mailing addresses, reducing undeliverable mail, saving postage costs, and improving data quality in customer databases.
Geographic Data Enrichment
PostalDataPI can enrich address data with additional geographic information such as coordinates, county, and timezone details associated with postal codes, which is valuable for analytics and location-based services.
Lightweight and Focused
As a specialized micro-API, it avoids the bloat of larger platforms, offering a focused toolset that does one thing well — handling postal and ZIP code data without unnecessary complexity.

usZIPCodes.org features and specs

Instant lookup
Quickly retrieve location and demographic information by ZIP code.
Comprehensive details
City, state, county, coordinates, population estimates, and timezone.
No registration
Free to use, with unlimited searches for personal or professional use.
Mobile friendly
Works across desktops, tablets, and smartphones.
Developer friendly
Simple outputs that can be integrated into workflows or applications.

Analysis of PostalDataPI

Overall verdict

I don't have verified, up-to-date information specifically about PostalDataPI (postaldatapi.com), including details on its accuracy, pricing, uptime, or customer reviews. I can't confirm whether it's a good product without more direct data or firsthand testing, so I'd recommend evaluating it yourself using the criteria below before committing.

Why this product is good

Unable to verify specific claims about data accuracy, coverage, or update frequency for this service
No confirmed information on pricing tiers, rate limits, or API reliability (SLA/uptime)
No verified user reviews, testimonials, or third-party comparisons available
Company background, support quality, and documentation quality are unconfirmed
If considering this service, check for: free trial/sandbox access, transparent pricing, data source citations, response time benchmarks, and independent reviews on sites like G2 or Trustpilot

Recommended for

Not able to make a specific recommendation without verified data
Best approach: developers needing postal/address validation APIs should compare this against established alternatives (e.g., SmartyStreets, Lob, Google Maps Geocoding API, USPS Web Tools) based on documented accuracy and pricing
Suitable evaluation candidates: teams willing to test the API directly with sample data before integrating into production systems

Analysis of usZIPCodes.org

Overall verdict

usZIPCodes.org is a useful free reference tool for quickly looking up ZIP codes, city and state information across the United States, making it a solid choice for basic geographic and postal lookups.

Why this product is good

Provides free and easy access to ZIP code data for locations across the U.S.
Offers quick search functionality to find ZIP codes by city, state, or address
Includes supplementary geographic details such as county, area codes, and time zones
Useful for verifying addresses and postal information without requiring registration

Recommended for

Individuals needing to quickly find a ZIP code for mailing or shipping
Small businesses verifying customer addresses or service areas
Students and researchers looking up basic U.S. geographic and postal data
E-commerce sellers confirming delivery locations and shipping zones

PostalDataPI videos

+ Add

PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries

usZIPCodes.org videos

No usZIPCodes.org videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to PostalDataPI and usZIPCodes.org)

PostalDataPI

usZIPCodes.org

Geolocation API

100 100%

Geolocation API

0% 0

Zip Lookup

0 0%

Zip Lookup

100% 100

Developer Tools

43 43%

Developer Tools

57% 57

Geocoding

100 100%

Geocoding

0% 0

Questions & Answers

As answered by people managing PostalDataPI and usZIPCodes.org.

What makes your product unique?

usZIPCodes.org's answer:

Their ability to translate simple postal codes into sophisticated geographic insights for a wide range of business and research applications beyond their original mail delivery purpose.

What's the story behind your product?

usZIPCodes.org's answer:

The "story" behind the concept of a "ZIP Code analysis tool" is not about a single specific software product, but rather the evolution of the ZIP Code itself from a simple postal sorting mechanism into a powerful, multifaceted geographic data analysis unit used across many industries.

User comments

Share your experience with using PostalDataPI and usZIPCodes.org. For example, how are they different and which one is better?

What are some alternatives?

When comparing PostalDataPI and usZIPCodes.org, you can also consider the following products

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

ZipCheckup - Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.

Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).

ZIP Code API - 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

Smarty vs PostalDataPI

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ZIP Code API vs PostalDataPI

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