Software Alternatives, Accelerators & Startups

ZIP Code API VS Owler

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

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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

Owler logo Owler

Owler is a crowdsourced data model allowing users to follow, track, and research companies.
  • 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

  • Owler Landing page
    Landing page //
    2023-10-18

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.

Owler features and specs

  • Competitive Insights
    Owler provides detailed competitive insights, including news, financials, and key personnel changes, enabling businesses to stay informed about their competitors.
  • User-Generated Data
    The platform leverages crowdsourced data, which can offer unique perspectives and more frequent updates on company information compared to official records.
  • Customizable Alerts
    Users can set up customizable alerts for specific companies or industries, ensuring they receive timely updates relevant to their interests.
  • Free Basic Plan
    Owler offers a basic plan at no cost, which is beneficial for startups and small businesses with limited budgets.
  • Community Interaction
    The platform encourages user interaction to rate and review companies, which can provide a more community-driven assessment of businesses.

Possible disadvantages of Owler

  • Data Accuracy
    Since much of Owler's data is user-generated, there may be concerns about the accuracy and reliability of the information provided.
  • Limited Features in Free Plan
    The free plan has limited functionalities and access to deeper insights often requires a paid subscription.
  • User Interface
    Some users find the interface to be less intuitive and in need of improvements for better navigation and user experience.
  • Data Coverage
    Owler may not cover all companies or industries comprehensively, potentially leaving gaps in competitive analysis.
  • Dependence on Community Activity
    The quality and quantity of data can heavily depend on how active the user community is, which might lead to inconsistent information across different sectors.

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 Owler

Overall verdict

  • Overall, Owler is considered a good tool for individuals and businesses seeking to enhance their competitive intelligence capabilities. It offers a wide array of features that make it a valuable resource for staying informed about industry movements and competitor actions.

Why this product is good

  • Owler is a business information and crowdsourced competitive intelligence platform that provides company data, news updates, and industry analysis. It is useful for gaining insights into competitors, tracking market trends, and obtaining company profiles. Users appreciate it for offering data that is continuously updated and verified by a community of contributors.

Recommended for

    Owler is particularly recommended for business analysts, sales and marketing professionals, and entrepreneurs who need reliable and up-to-date information on competitors and market trends. It's also beneficial for investors and job seekers looking to research companies.

ZIP Code API videos

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Owler videos

Owler Introduction

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  • Review - Owler Ashford Marathon, Half Marathon and 10k 2017. Grit and Ice were the themes here...

Category Popularity

0-100% (relative to ZIP Code API and Owler)
Zip Lookup
100 100%
0% 0
Data Dashboard
0 0%
100% 100
APIs
100 100%
0% 0
Business & Commerce
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, Owler seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ZIP Code API mentions (0)

We have not tracked any mentions of ZIP Code API yet. Tracking of ZIP Code API recommendations started around May 2026.

Owler mentions (1)

  • A web app/executable that can collect data from a number of databases.
    Owler is a good example of the type of app I need: https://corp.owler.com/. Source: over 4 years ago

What are some alternatives?

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

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

QlikSense - A business discovery platform that delivers self-service business intelligence capabilities

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

Whatagraph - Whatagraph is the most visual multi-source marketing reporting platform. Built in collaboration with digital marketing agencies

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

Foxmetrics - We track the interactions of your customers with your web or mobile applications in real-time, and provide actionable metrics that will help increase your conversion.