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ZIP Code API VS ZipCheckup

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

ZIP
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

Rating
0 reviews
Alternatives Is it good?
ZipCheckup

Check water quality, product recalls, energy rebates, and safety alerts for any U.S. ZIP code. Free reports powered by EPA and government data.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
SquadPrime
Free MVP cost calculator: describe your app in 5 clicks and get a realistic 2026 estimate for a freelancer build, a traditional agency and a fixed-price 14-day build by senior professionals, where the client owns the code. sponsored

Which is more popular?

Based on our record, ZipCheckup seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
0 vs 1
APIs popularity
100% vs 0%
alternatives listed
7 vs 2

Base details

Website, pricing, platforms and company facts side by side.

ZIP
ZIP Code API
ZipCheckup
Website zip-codes.com zipcheckup.com
Pricing —
Open source
Company Startup from the United States · 2026 Startup from the United States · 1 - 9 employees · 2026
Listed in
APIs Developer Tools Geocoding Location Intelligence Address API Zip Lookup +3
Lifestyle Home Safety Zip Lookup Analytics +2

About ZIP Code API and ZipCheckup

In their own words, as submitted to SaaSHub.

ZIP
ZIP Code API
ZipCheckup

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...

Read more about ZIP Code API

ZipCheckup analyzes 50+ federal data sources (EPA, FEMA, CDC, USGS, Census) to generate free home safety reports for all 42,679 U.S. ZIP codes. Covers water quality, lead risk, PFAS contamination, flood risk, radon, wildfire, earthquake, mold, and 9 more safety categories. 283,000+ pages, updated...

Read more about ZipCheckup

Features and specs

What each product offers, as listed by its team.

ZIP
ZIP Code API 5 features
ZipCheckup 5 features
  • 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.
  • Simple ZIP-code lookup
    The name and URL suggest you enter a ZIP code and get location-specific results right away, without creating an account or doing complex setup. I could not verify the site's current features, so confirm this on the site.
  • Fast, easy to understand results
    Tools like this usually turn technical public data into a short, readable summary. That helps non-experts such as homeowners, renters and parents get a quick overview. Check that the site actually does this.
  • Likely based on public data
    Services of this type usually draw on government or public datasets, such as EPA water-quality records. That can make the information more credible than anecdotal sources. Verify which sources ZipCheckup cites.
  • Free to access (probably)
    Lookup tools like this are often free or ad-supported for basic use, which makes them a low-cost way to do preliminary research. Confirm the current pricing on the site.
  • Useful starting point for research
    It can help you spot potential concerns in your area and decide whether to follow up with testing, local utilities or other official sources.

Analysis

An editorial look at what each product does well and who it suits.

ZIP
ZIP Code API
ZipCheckup

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

Overall verdict

  • ZipCheckup appears to be a niche, lightweight tool for looking up ZIP code data and validating addresses, suitable for quick reference or small-scale verification needs, though it's not a widely recognized or heavily reviewed platform.

Why this product is good

  • Provides quick ZIP code lookups and related location data
  • Simple, easy-to-use interface for basic address verification tasks
  • Free access for casual use, which is helpful for occasional lookups
  • Useful for cross-referencing ZIP codes with cities and states

Recommended for

  • Individuals needing quick ZIP code verification
  • Small business owners checking customer address details occasionally
  • Online sellers verifying shipping information
  • Users who need a simple, no-frills ZIP lookup tool without heavy integrations

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
ZIP
ZIP Code API
ZipCheckup
100% 100%
APIs
0% 0%
0% 0%
Analytics
100% 100%
100% 100%
Zip Lookup
0% 0%
0% 0%
Safety
100% 100%

User comments

Share your experience with using ZIP Code API and ZipCheckup. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

ZIP
ZIP Code API 0 mentions
ZipCheckup 1 mention

Tracking ZIP Code API since May 2026.

  • I Built a 278,000-Page Website From Federal Data for $5/Month
    I spent the last few months stitching it all together into one site. ZipCheckup. Type in a ZIP code, get a full home safety profile. 278,000 pages. 50+ data sources. Running on $5/month. - Source: dev.to / 6 months ago

Alternatives to ZIP Code API and ZipCheckup

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

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