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Topic Research by SEMrush VS ZIP Code API

Compare Topic Research by SEMrush VS ZIP Code API and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

Topic Research by SEMrush logo Topic Research by SEMrush

Content ideas that resonate with your audience

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
  • Topic Research by SEMrush Landing page
    Landing page //
    2023-07-30
  • 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

Topic Research by SEMrush features and specs

  • Comprehensive Data
    SEMrush provides extensive data on various topics, including related questions and subtopics, which helps in creating well-rounded content and improving SEO.
  • User-Friendly Interface
    The tool offers an intuitive interface that makes it easy to navigate through different topics and gather insights efficiently.
  • Competitive Analysis
    Users can see what content competitors are producing around a given topic, allowing for strategic content planning.
  • Inspiration and Ideas
    It aids in brainstorming by suggesting headlines and topics that are currently trending or have high search volumes.
  • Time-Saving
    The tool quickly aggregates vast amounts of data, eliminating the need for manual research, thus saving time and effort for marketers and content creators.

Possible disadvantages of Topic Research by SEMrush

  • Pricing
    SEMrush is a premium tool and can be expensive for small businesses or individual users who have a limited budget.
  • Learning Curve
    While SEMrush provides a lot of data, some users may find the plethora of information overwhelming at first and might need time to learn how to utilize it effectively.
  • Data Overload
    The tool offers a lot of data, which can be both a blessing and a curse. Users may struggle to filter out useful insights from the sheer volume of information provided.
  • Limited Free Features
    Only a limited number of features are available in the free version, which might not be sufficient for users who need in-depth analysis.
  • Dependence on Internet Connection
    As a cloud-based tool, it requires a stable internet connection to function effectively, which can be a drawback for users with unreliable connectivity.

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 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

Category Popularity

0-100% (relative to Topic Research by SEMrush and ZIP Code API)

Topic Research by SEMrush

ZIP Code API

Marketing
100 100%
Marketing
0% 0
Zip Lookup
0 0%
Zip Lookup
100% 100
SEO Tools
100 100%
SEO Tools
0% 0
APIs
0 0%
APIs
100% 100

User comments

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What are some alternatives?

When comparing Topic Research by SEMrush and ZIP Code API, you can also consider the following products

Content Idea Generator - Free tool creates ideas for your content marketing strategy

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

Keyword Tool & Content Assistant - Content optimization tool to boost your rankings

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

Content Marketing Stack - A curated directory of content marketing resources

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

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