Software Alternatives, Accelerators & Startups

ipstack VS ZIP Code API

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

ipstack logo ipstack

ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.

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
  • ipstack Landing page
    Landing page //
    2023-07-13
  • 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

ipstack features and specs

  • Ease of Use
    ipstack offers a user-friendly interface and extensive documentation that makes it easy for developers to integrate its API into their applications.
  • Comprehensive Data
    Provides detailed geolocation data, including continent, country, region, city, latitude, longitude, and more, which is beneficial for various applications.
  • Reliable Performance
    ipstack is known for its reliable uptime and fast response times, ensuring consistent performance for applications relying on its services.
  • Scalability
    The service supports a high number of API requests, making it suitable for both small-scale applications and large-scale enterprise solutions.
  • Security Features
    Offers a secure HTTPS connection to ensure that data is transmitted securely, protecting sensitive information from interception.

Possible disadvantages of ipstack

  • Cost
    While ipstack offers a free tier, its premium plans can be costly for small businesses or individual developers with limited budgets.
  • Data Accuracy
    The accuracy of the geolocation data can sometimes be limited, particularly for mobile IP addresses and VPN users.
  • Privacy Concerns
    The service involves processing IP addresses, which could raise privacy concerns for users who are sensitive about sharing their geolocation data.
  • Limited Free Plan
    The free tier comes with limitations on the number of API requests and available features, which may not be sufficient for advanced or high-demand applications.
  • Complexity of Advanced Features
    Implementing advanced features might require additional effort and technical expertise, which could be challenging for less experienced developers.

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.

Analysis of ipstack

Overall verdict

  • Yes, ipstack is generally considered a good tool for those needing IP geolocation services due to its feature-rich offerings and reliability. However, the effectiveness can vary based on specific needs and use cases.

Why this product is good

  • ipstack is a popular IP geolocation service known for providing detailed information about the geographic location of IP addresses. It offers a reliable API, extensive documentation, and a range of features such as time zone and currency information, ASN data, and security modules. Many users appreciate its ease of integration and the accuracy of the data provided.

Recommended for

  • Developers looking to integrate IP geolocation functionality into their applications
  • Businesses needing to personalize user experiences based on location data
  • Security teams seeking to analyze and mitigate potential threats using geographic data
  • Marketers interested in targeting audiences by region or location

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

ipstack videos

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ZIP Code API videos

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Category Popularity

0-100% (relative to ipstack and ZIP Code API)
IP Data
100 100%
0% 0
Zip Lookup
0 0%
100% 100
Geolocation
100 100%
0% 0
APIs
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, ipstack seems to be more popular. It has been mentiond 36 times 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.

ipstack mentions (36)

  • Overcoming Geo-Blocked Features: A Senior Architect's Strategy for Rapid QA Testing
    Services like IPStack or MaxMind provide APIs to programmatically detect and manipulate location data. Integrating these into test scripts allows dynamic region simulation:. - Source: dev.to / 6 months ago
  • Building a Next-Gen AI Fraud Detection System: A Python & LangChain Tutorial
    First, ensure you have your Python environment ready. You will need an API key from IPStack (specifically one that supports the security module) and an OpenAI API key (or any LLM provider supported by LangChain). - Source: dev.to / 8 months ago
  • How Enterprises Benefit from Global IP Coverage API Platforms
    ๐Ÿ‘‰ Explore the most Accurate IP geolocation service at: https://ipstack.com/. - Source: dev.to / 9 months ago
  • Exploring the API Market with an IP Address Location API
    APIs from reputable providers such as ipstack.com offer robust performance, extensive documentation, and real-time accuracy, making them a preferred choice for developers. - Source: dev.to / 9 months ago
  • What is the best Geolocation API in 2025?
    IPstack โ€” Robust API with scalable infrastructure. - Source: dev.to / over 1 year ago
View more

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.

What are some alternatives?

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

ipinfo.io - Simple IP address information.

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

ipapi - Web analytics with IP address lookup and location API

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

ipgeolocation.io - Free IP Geolocation API and Accurate GeoIP Lookup Location Database

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