Software Alternatives, Accelerators & Startups

ZIP Code API VS LeadIQ

Compare ZIP Code API VS LeadIQ 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

LeadIQ logo LeadIQ

VP of Sales. Every second in sales counts. You hired your sales team to sell, not do data entry. LeadIQ will pump up your sales team with accurate prospect data and a smooth workflow so you can fill up your pipeline faster.
  • 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

  • LeadIQ Landing page
    Landing page //
    2023-09-30

ZIP Code API

Pricing URL
-
Release Date
2026 April
Startup details
Country
United States
State
NY

LeadIQ

Website
leadiq.com
Release Date
-
Startup details
Country
United States

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.

LeadIQ features and specs

  • Comprehensive Data Collection
    LeadIQ enables users to collect extensive data on leads, such as email addresses, phone numbers, and social media profiles, enhancing the efficiency and accuracy of the lead generation process.
  • CRM Integration
    The platform offers seamless integration with various CRM tools like Salesforce, HubSpot, and Pipedrive, allowing for smooth data synchronization and better workflow management.
  • Easy-to-Use Interface
    LeadIQ is known for its user-friendly interface that allows users to quickly adapt to the platform, reducing the time required for training and increasing productivity.
  • LinkedIn Integration
    LeadIQ's integration with LinkedIn enables users to gather contact information directly from profiles, making it easier to reach out to potential prospects on a professional social network.
  • Automated Lead Enrichment
    The tool offers automated lead enrichment features that ensure the information remains up-to-date, reducing manual efforts and improving data accuracy.

Possible disadvantages of LeadIQ

  • Pricing
    LeadIQ can be on the pricier side, especially for small enterprises or startups with limited budgets, making it less accessible for these groups.
  • Data Accuracy
    Although LeadIQ strives to provide high-quality data, users have reported instances where the contact information retrieved is outdated or inaccurate, potentially leading to unsuccessful reach-outs.
  • Limited Customization
    The platform offers limited customization options for certain features, which might not fulfill the specific needs of all users or industries.
  • Learning Curve for Advanced Features
    While the basic interface is user-friendly, leveraging more advanced features and integrations might require a steeper learning curve, necessitating additional training and support.
  • Integration Issues
    Users have experienced occasional issues with smooth integration into certain third-party applications and CRM systems, causing disruptions in workflow.

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 LeadIQ

Overall verdict

  • Overall, LeadIQ is a reputable and effective solution for businesses seeking to improve their prospecting efficiency and maintain a robust pipeline of qualified leads. It receives positive feedback for its ease of use, data accuracy, and valuable integrations.

Why this product is good

  • LeadIQ is considered a good tool for sales prospecting and data enrichment because it streamlines the lead generation process, integrates well with popular CRM platforms, and provides accurate contact information to boost sales teams' productivity. Its user-friendly interface and ability to automate certain aspects of the lead qualification process make it a valuable asset for sales professionals looking to enhance their prospecting efforts.

Recommended for

    LeadIQ is recommended for sales teams, business development representatives, and any organization looking to enhance their lead generation and prospecting processes. It is particularly beneficial for those who require accurate and comprehensive contact data to maximize their outreach efforts.

ZIP Code API videos

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LeadIQ videos

Prospecting With LeadIQ, Sales Navigator & Outreach.io

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Category Popularity

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Zip Lookup
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Sales Tools
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100% 100
APIs
100 100%
0% 0
Lead Generation
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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 LeadIQ

ZIP Code API Reviews

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LeadIQ Reviews

Top 14 AI Lead Generation Software & Tools: A Detailed Comparison
LeadIQ focuses on AI-enhanced prospecting and data enrichment, enabling teams to streamline outreach and improve lead quality. It automates the process of collecting contact information from LinkedIn and other sources, streamlining outreach with CRM integration, and helping sales teams engage prospects faster with personalized messages.
Source: www.cience.com
Top 10 Lead Generation and Engagement Tools
LeadIQ simplifies the lead generation process by helping businesses capture, enrich, and sync contact information from LinkedIn and other online sources directly into their CRM. It enhances sales teamsโ€™ outreach efforts by streamlining prospecting and engagement.
Source: rainex.io
11 Apollo.io Alternatives and Competitors 2024
LeadIQ is a prospecting tool that helps you discover and enrich prospect profiles and keeps track of them efficiently.
Source: evaboot.com
Top 15+ Apollo.io Competitors & Alternatives [2024]
With LeadIQ, users can get essential lead data like names, job titles, email addresses, phone numbers, and social media profiles. The platform also has data enrichment services to append additional information on existing leads.
Source: www.kaspr.io
Leadjet vs. Apollo vs. LeadIQ vs. LinkedHelper
BlogHelp CenterAboutBlogAboutBook a demoBook a DemoStart for FreeMarketingLeadjet vs. Apollo vs. LeadIQ vs. LinkedHelperPost byDavid ChevalierLeadjet comparisonProsConsApollo comparisonProsConsLeadIQ comparisonProsConsLinked Helper 2.0 comparisonProsConsBottom lineTry a free demoRelated articles5 tips on boosting B2B sales via LinkedInHow to easily export LinkedIn contacts...
Source: www.leadjet.io

Social recommendations and mentions

Based on our record, LeadIQ 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.

LeadIQ mentions (1)

  • Most effective lead gen for freight broker
    I would look into products like this - https://leadiq.com. Source: almost 4 years ago

What are some alternatives?

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

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

Lusha - Search less. Sell more.

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

LeadFuze - B2B Lead Generation & Sales Prospecting Software.

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

ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.