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ZIP Code API VS Hunter.io

Compare ZIP Code API VS Hunter.io 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

Hunter.io logo Hunter.io

Find all the email addresses related to a domain
  • 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

  • Hunter.io Landing page
    Landing page //
    2023-09-20

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.

Hunter.io features and specs

  • Large Database
    Hunter.io offers access to a substantial database of professional emails from a variety of domains, making it easier to find contact information.
  • Accuracy
    The service provides a high degree of accuracy by verifying email addresses in real-time, which reduces the chances of bounce backs.
  • Ease of Use
    The interface is user-friendly and intuitive, enabling even non-technical users to quickly find and verify email addresses.
  • API Integration
    Hunter.io provides robust API integration, allowing developers to incorporate its functionality into their own applications seamlessly.
  • GDPR Compliance
    The service adheres to GDPR regulations, ensuring that user data is handled in a privacy-compliant manner.
  • Chrome Extension
    Hunter.io offers a Chrome extension that enables users to find email addresses directly from their browser while visiting websites.

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 Hunter.io

Overall verdict

  • Hunter.io is generally considered a good tool for professionals who need reliable email search and verification services. Its wide range of features, ease of use, and reliable data make it a valuable resource for many users. However, as with any tool, it is important to assess your specific needs and evaluate whether its offerings align with your objectives.

Why this product is good

  • Hunter.io is a popular tool that is primarily used for finding and verifying professional email addresses. It is well-regarded for its accuracy and depth of data, offering users a vast database to search from. Hunter.io is particularly beneficial for salespeople, marketers, and recruiters who need to connect with potential clients, partners, or candidates efficiently. The platform provides features such as domain search, email verification, lead generation, and integrations with other CRM tools, which make it versatile and user-friendly.

Recommended for

  • Sales professionals looking to generate leads and connect with potential clients
  • Marketing teams aiming to reach out to prospective customers or partners
  • Recruiters and HR professionals seeking to verify or find candidate contact information
  • Entrepreneurs and business development specialists needing to expand their network

ZIP Code API videos

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Hunter.io videos

GTA Hunter Review

More videos:

  • Review - FH-1 Hunter review! - GTA Online guides
  • Review - Hunters Review - Spoiler-Free
  • Tutorial - Find email addresses in seconds โ€ข Hunter (Email Hunter) - mail tracker.hunter.io | hunter.io review

Category Popularity

0-100% (relative to ZIP Code API and Hunter.io)
Zip Lookup
100 100%
0% 0
Lead Generation
0 0%
100% 100
APIs
100 100%
0% 0
Sales Tools
0 0%
100% 100

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Reviews

These are some of the external sources and on-site user reviews we've used to compare ZIP Code API and Hunter.io

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Hunter.io Reviews

  1. Eleanor Bennett
    ยท Digital Marketing Specialist at Logit.io ยท
    Brilliant for outreach

    I often use the Hunter Google Chrome extension to assist me in discovering the contact details of new outreach targets. The only drawback is that I quite often exceed my free monthly allowance of lead requests.


21 Best Lead Generation Software for 2024
Hunter.io is an ideal outreach tool for finding and verifying prospectsโ€™ email addresses for outbound lead-generation campaigns.
Source: www.sender.net
Top 15+ Apollo.io Competitors & Alternatives [2024]
If email addresses are important to you, it could be worth considering Apollo.io competitors like Hunter. With Hunter, you can find and outreach to prospects by email.
Source: www.kaspr.io
15 Best Apollo.io Alternatives to Find Verified B2B Leads (2024)
Gathers and Confirms Contact Details โ€“ Hunter.io uses advanced artificial intelligence to help you find, verify, and enhance the contact information for your potential customers or leads. This ensures you have accurate and up-to-date details like email addresses and phone numbers.
The Ultimate List of Best ZoomInfo Alternatives to get B2B Contacts and fill up the top of your Sales Pipeline
Hunter is one of the best and well-known email finders in the market. The process is quite simple, where you just enter the website domain of the company you want to target, and Hunter scrapes and gives you the list of all the available emails in this domain with the name, job title, department, etc.
112 Best Chrome Extensions You Should Try (2021 List)
It is easy to send mass emails to hundreds of people. But, finding those emails is a bothersome task. Visiting contact pages of websites and locating email addresses is rough. I do not fancy doing such unproductive work. Instead, I use Hunter to find contact information of any domain. It shows titles, social networks, and phone numbers to contact the admin. You should use...

Social recommendations and mentions

Based on our record, Hunter.io seems to be more popular. It has been mentiond 155 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.

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.

Hunter.io mentions (155)

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What are some alternatives?

When comparing ZIP Code API and Hunter.io, you can also consider the following products

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

Apollo.io - Apolloโ€™s predictive prospecting, sales engagement, and actionable analytics help the teams to reach its full revenue potential.

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

Snov.io - Snov.io is a multichannel lead generation and outreach automation platform that helps B2B teams find qualified leads, automate email and LinkedIn campaigns, and manage deals in one built-in CRM.

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

Lusha - Search less. Sell more.