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ZIP Code API VS PublicAPIs

Compare ZIP Code API VS PublicAPIs and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

ZIP Code API logo 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

PublicAPIs logo PublicAPIs

Explore the largest API directory in the galaxy
  • ZIP Code API Landing page
    Landing page //
    2026-05-21

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America โ€” no separate APIs by country or data type.

What it does

  • Address validation and standardization โ€” production-grade parser with ZIP+4 append, refreshed monthly
  • Radius search โ€” centroid haversine and true spatial polygon intersection. Returns ZIPs/FSAs within range, with per-result pct_inside overlap percentage for spatial queries
  • Unified lookup endpoint โ€” accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
  • Autocomplete/typeahead โ€” cities, counties, metros, states, FSAs, ZIPs
  • Point-to-point distance โ€” between any two postal points
  • Census ACS demographics โ€” 2011โ€“2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
  • Boundary lookups โ€” Census tracts, congressional districts, state legislative areas, school districts โ€” with computed intersection percentages per ZIP

What makes it different

  • Licensed commercial data โ€” not commodity or scraped sources
  • Canadian postal coverage โ€” most peers in this space are US-only
  • True spatial radius โ€” not just centroid haversine
  • 14 years of historical ACS depth via API โ€” unusual outside of raw Census downloads
  • One endpoint for all of North America โ€” no country-detection or input-routing logic to maintain on the client side

Pricing

  • Free โ€” 2,500 lookups/day, no credit card required, no expiry
  • Developer โ€” $49/mo, 100K credits, 300/min
  • Professional โ€” $149/mo, 350K credits, 300/min
  • Business โ€” $499/mo, 1.5M credits, 600/min
  • Credit packs โ€” one-time, from 25K ($19) up to 2M ($799)

Resources

Not present

ZIP Code API features and specs

  • Comprehensive ZIP Code Data
    The ZIP Code API from zip-codes.com provides extensive data including ZIP code details, city information, state data, and geographic coordinates, making it a thorough resource for location-based lookups.
  • Multiple Lookup Options
    The API supports various types of lookups including ZIP code to city/state, city/state to ZIP code, distance calculations between ZIP codes, and radius searches, offering flexible querying capabilities.
  • Easy Integration
    The API uses standard REST-based HTTP requests and returns data in commonly used formats like JSON and XML, making it straightforward to integrate into most applications and programming languages.
  • Distance and Radius Calculations
    The API includes built-in functionality for calculating distances between ZIP codes and finding ZIP codes within a specified radius, which is valuable for store locators, shipping estimates, and proximity-based features.
  • Well-Documented Endpoints
    The API provides clear documentation for its various endpoints and parameters, helping developers understand available features and implement them correctly without extensive trial and error.

PublicAPIs features and specs

  • Wide Variety
    PublicAPIs provides access to a broad range of APIs across different categories, making it easier for developers to find the APIs they need for various applications.
  • Centralized Resource
    Having a centralized resource for public APIs helps developers save time by not having to search multiple sources to find the API they need.
  • Free Access
    Many of the APIs listed on PublicAPIs are free to use, making it accessible for developers who may be working with limited budgets or on hobby projects.
  • API Documentation
    PublicAPIs often includes links to detailed documentation for each API, providing developers with the information they need to integrate and utilize the APIs effectively.
  • Community Contributions
    PublicAPIs allows for community contributions, enabling a mechanism for the API repository to grow and stay up-to-date with the latest APIs.

Possible disadvantages of PublicAPIs

  • Quality Variability
    The quality of APIs listed can vary significantly, with some being well-maintained and others potentially outdated or lacking comprehensive documentation.
  • Limited Support
    PublicAPIs itself does not usually offer support for the APIs listed, which can be a disadvantage if developers encounter issues and need assistance.
  • Dependency on Third-Party Reliability
    Developers depend on third-party providers' reliability and uptime, which can affect the performance and stability of their own applications.
  • Potential Security Risks
    Using third-party APIs can introduce security vulnerabilities, especially if the APIs are not from trusted sources or if they do not follow best security practices.
  • Rate Limits
    Many public APIs impose rate limits, which can restrict the number of API calls a developer can make within a given time frame, potentially impacting application performance.

Analysis of ZIP Code API

Overall verdict

  • ZIP Code API from zip-codes.com is a solid, reliable choice for developers and businesses needing accurate US and Canadian postal code data, offering a straightforward RESTful interface with regularly updated databases.

Why this product is good

  • Provides accurate and frequently updated ZIP code, city, state, and geographic data
  • Offers a simple RESTful API that is easy to integrate into web and mobile applications
  • Supports features like ZIP code lookup, radius search, and distance calculations
  • Includes both US ZIP codes and Canadian postal codes for broader coverage
  • Backed by an established data provider with a long track record in postal data

Recommended for

  • Developers building address validation or autofill features
  • E-commerce platforms needing shipping and location-based calculations
  • Businesses performing geographic or radius-based store locators
  • Applications requiring reliable US and Canadian postal data
  • Marketing and logistics teams that need regional or demographic targeting

Analysis of PublicAPIs

Overall verdict

  • PublicAPIs is generally considered good due to its wide selection of APIs, ease of access, and the ability to discover new tools and services. Its open-access nature encourages creativity and rapid prototyping.

Why this product is good

  • PublicAPIs is a beneficial resource as it provides a curated list of freely available APIs for developers. It helps accelerate development by offering access to a diverse range of APIs, from weather and finance to gaming and machine learning. This can be particularly useful for both learning purposes and developing projects without the need for substantial investment in proprietary APIs.

Recommended for

  • Developers looking for free or open APIs to integrate into their projects.
  • Students and educators who need practical API examples for teaching and learning.
  • Startups and hobbyists seeking to build prototypes without incurring additional costs.

Category Popularity

0-100% (relative to ZIP Code API and PublicAPIs)

ZIP Code API

PublicAPIs

Zip Lookup
100 100%
Zip Lookup
0% 0
APIs
16 16%
APIs
84% 84
Web App
0 0%
Web App
100% 100
Developer Tools
18 18%
Developer Tools
82% 82

User comments

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What are some alternatives?

When comparing ZIP Code API and PublicAPIs, you can also consider the following products

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

API List - A collective list of APIs. Build something.

Zipcodestack - Free Zip Code API - Free Postal Code Validation | Zipcodestack

Phantombuster - A marketplace of simple to use no-code APIs

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

Mock API Generator - Generate custom data & API to build apps in less than 30s

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