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ZIP Code API VS Serpstat

Compare ZIP Code API VS Serpstat 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

Serpstat logo Serpstat

Serpstat is the Swiss army knife for automating SEO processes. With a suite of powerful modules, you can track your performance, analyze your competitors, research keywords and backlinks, audit your website, and so much more.
  • 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

  • Serpstat Landing page
    Landing page //
    2023-06-11
  • Serpstat Rank Tracker
    Rank Tracker //
    2024-09-19
  • Serpstat Domain Analysis
    Domain Analysis //
    2024-09-19

Dive deep into keyword research with Serpstat's keyword database, now bigger than ever with global coverage across 230 regions. Uncover the most valuable keywords for your business, understand search intent,ย  and optimize your content strategy

ZIP Code API

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

Serpstat

$ Details
freemium $69.0 / Monthly
Release Date
2015 February
Startup details
Country
Ukraine
Founder(s)
Oleg Salamaha
Employees
50 - 99

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.

Serpstat features and specs

  • Comprehensive SEO Toolkit
    Serpstat provides a wide range of SEO tools including keyword research, site audit, backlink analysis, rank tracking, and competition analysis, making it a one-stop solution for SEO needs.
  • User-Friendly Interface
    The platform features a well-organized and intuitive interface, making it accessible and easy to navigate even for beginners.
  • Affordable Pricing
    Compared to other SEO tools in the market, Serpstat is relatively affordable, offering a good balance between cost and features.
  • Detailed Analytics
    Provides in-depth analytics and reports, helping users make data-driven decisions for their SEO strategies.
  • Regular Updates
    The platform frequently updates its features and database to keep up with the latest SEO trends and requirements.
  • Excellent Customer Support
    Offers responsive and helpful customer support through various channels including live chat, email, and phone.

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 Serpstat

Overall verdict

  • Overall, Serpstat is regarded as a solid option for both beginners and experienced SEO professionals who need a reliable tool to improve their website's search visibility and performance. Its competitive pricing, combined with a robust set of features, make it a popular choice in the SEO community.

Why this product is good

  • Serpstat is considered a good SEO tool by many users because it offers a wide range of features that help with keyword research, site audit, backlink analysis, rank tracking, and competitor research. It is especially valued for its comprehensive data and user-friendly interface. Additionally, it is often praised for its affordability compared to other SEO tools, making it accessible to small businesses and individual marketers.

Recommended for

    Serpstat is recommended for digital marketers, SEO professionals, content creators, and businesses of all sizes looking for a comprehensive yet affordable SEO tool to enhance their online presence and gain insights into their competitors.

ZIP Code API videos

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Serpstat videos

What is Serpstat?

More videos:

  • Review - SerpStat Review - My Favorite Free & Paid SEO Keyword Research Tools Perfect For Beginners
  • Review - Serpstat Review | Growth hacking tool for SEO | Pearl Lemon Reviews
  • Review - Serpstat Review โœ… Discount Coupon Code With( 20% Off Special)

Category Popularity

0-100% (relative to ZIP Code API and Serpstat)
Zip Lookup
100 100%
0% 0
SEO
0 0%
100% 100
APIs
100 100%
0% 0
SEO Tools
0 0%
100% 100

Questions & Answers

As answered by people managing ZIP Code API and Serpstat.

What makes your product unique?

Serpstat's answer:

The AI-powered features for content optimization and generation are particularly noteworthy, as they go beyond traditional SEO tools to assist with content creation and enhancement.

Why should a person choose your product over its competitors?

Serpstat's answer:

With its focus on AI and continuous innovation, choosing Serpstat positions users to take advantage of emerging trends in digital marketing.

How would you describe the primary audience of your product?

Serpstat's answer:

Serpstat's primary audience includes digital marketers, agencies, in-house marketing teams, freelancers, content creators, and businesses looking to improve online visibility.

User comments

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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 Serpstat

ZIP Code API Reviews

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Serpstat Reviews

The 16 Best Moz Alternatives for Every Budgetย 
Serpstat is an affordable SEO tool with a one-week free trial. The only difference is that, unlike Moz, Serpstat doesnโ€™t have a free version, so youโ€™ll need to pick a paid plan once the trial is over.
10 SE Ranking Alternatives in 2025 [Free and Paid]
Serpstat offers a balanced approach to SEO, blending competitive analysis with a user-friendly interface, making it suitable for users who want to combine keyword research with site audits and content strategies. Its unique features like the โ€œTree Viewโ€ make it ideal for those looking to enhance their website architecture alongside their SEO efforts.
10 Moz Pro Alternatives in 2025 [Free and Paid]
Serpstat provides advanced tools for users looking to perform detailed SEO analysis and competitor research. Its extensive features make it ideal for those who need comprehensive insights into their websiteโ€™s performance.
Top 6 Moz Competitors In 2024: A Detailed Review
Furthermore, Serpstat is praised for its versatile functionality. It provides valuable insights across multiple facets of digital marketing. Itโ€™s also particularly noted for its comprehensive competitor analysis and budget-friendly pricing.
10 Best Serpstat Alternatives in 2024
In the fast-paced world of SEO and digital marketing, finding the right tool to boost your online visibility can be challenging. Serpstat is a popular choice known for its robust features in keyword research, competitor analysis, and SEO audits. However, if you're seeking alternatives that might better meet your specific needs or offer different advantages, there are plenty...

Social recommendations and mentions

Based on our record, Serpstat seems to be more popular. It has been mentiond 5 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.

Serpstat mentions (5)

  • 10 BEST FREE SEO REPORTING TOOLS
    SERPstat: Provides a range of SEO features, including keyword research, competitor analysis, rank tracking, site audit, backlink analysis, and more. Source: almost 3 years ago
  • Best alternatives to SEMRush?
    Https://raventools.com - used it waaay back, since been acquired by TapClicks -not sure if that's a good thing or a bad thing Https://serpstat.com - see this one get mentioned quite a bit; never used tho Https://www.link-assistant.com - has been around for a while Https://seranking.com - has grown beyond just ranking tools Https://cognitiveseo.com - I've heard some decent SEOs rave about this... Source: about 3 years ago
  • SEO Tools Megathread
    Serpstat - A comprehensive SEO tool that offers keyword research, rank tracking, site audit, and backlink analysis. Pricing starts at AUD $103.20/month. Link: https://serpstat.com/. Source: over 3 years ago
  • Traffic from a site your not associated with?
    Hello, you might wanna use serpstat.com , it's a website that measures traffic of other websites, copy paste your URL and you should be able to see all the data it can read. Source: over 4 years ago
  • Why add coins/tokens which have NO large interest from consumers
    Some coins/tokens on Binance and keyword search volume per month according to Google Ads - I use serpstat.com. Source: over 5 years ago

What are some alternatives?

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

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

SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.

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

Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!

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

Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.