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Constant Contact VS ZIP Code API

Compare Constant Contact VS ZIP Code API and see what are their differences

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  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

Constant Contact logo Constant Contact

Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.

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
  • Constant Contact Landing page
    Landing page //
    2023-07-19
  • 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

Constant Contact features and specs

  • User-Friendly Interface
    Constant Contact provides an intuitive and easy-to-navigate interface, making it accessible for users without technical expertise.
  • Comprehensive Email Templates
    Offers a wide range of customizable email templates, which helps businesses create professional-looking emails without design skills.
  • Robust Customer Support
    Features extensive customer support options including live chat, email, and phone support, as well as a comprehensive knowledge base.
  • Event Management Tools
    Includes tools that allow users to manage events, track registrations, and send event-related communications directly through the platform.
  • List Management
    Provides efficient contact list management features, including segmentation and engagement tracking, to better target and personalize email campaigns.
  • Analytics and Reporting
    Offers detailed analytics and reporting tools that help users track email campaign performance, engagement metrics, and ROI.

Possible disadvantages of Constant Contact

  • Higher Cost
    Constant Contact is generally more expensive compared to other email marketing services, which may be a barrier for small businesses or startups.
  • Limited Automation Features
    The platform's automation capabilities are not as advanced as some competitors, potentially requiring more manual effort for complex workflows.
  • Customization Limitations
    While there are many templates available, the customization options can be somewhat limited, particularly for advanced design needs.
  • List Import Issues
    Some users report difficulties and limitations when importing contact lists from other sources, which can complicate migration processes.
  • Template Responsiveness
    Certain users have reported issues with email template responsiveness on different devices, impacting user experience for recipients.

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 Constant Contact

Overall verdict

  • Constant Contact is a good option for small to medium-sized businesses and individuals looking for a reliable and straightforward email marketing solution. While it may not be the most affordable option for everyone, the features and support offered make it a worthwhile investment.

Why this product is good

  • Constant Contact is considered a solid choice for email marketing due to its ease of use, a wide variety of customizable templates, and robust set of features, including email automation, segmentation, and real-time reporting. It also integrates well with other tools, provides excellent customer support, and offers webinars and training resources to help users get the most out of the platform.

Recommended for

  • Small businesses
  • Non-profits
  • E-commerce stores
  • Event planners
  • Beginner to intermediate marketers

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

Constant Contact videos

+ Add

Constant Contact Review - The Pros & Cons of the Newsletter Tool

More videos:

  • Review - Constant Contact Review/Tutorial (2020) Full Step-By-Step Walkthrough
  • Review - Best Email Marketing Service? Mailchimp vs Constant Contact vs ConvertKit vs Aweber vs Drip

ZIP Code API videos

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Category Popularity

0-100% (relative to Constant Contact and ZIP Code API)

Constant Contact

ZIP Code API

Email Marketing
100 100%
Email Marketing
0% 0
Zip Lookup
0 0%
Zip Lookup
100% 100
Email Marketing Platforms
100 100%
Email Marketing Platforms
0% 0
APIs
0 0%
APIs
100% 100

User comments

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Reviews

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

Constant Contact Reviews

10 Best Campaign Monitor Alternatives You Can Find
Constant Contact pricing has 3 plans. Also, it offers a free trial of 14 days, so you can try it free before committing. Letโ€™s compare Campaign Monitor vs Constant Contact pricing and learn its pricing in detail.
Source: mailbluster.com
10 SurveyMonkey Alternatives and Competitors in 2024
Constant Contact is a dynamic platform that empowers you to engage with your audience effectively. Its user-friendly interface allows you to create and send professional emails, design eye-catching newsletters, and automate email campaigns effortlessly.
Source: clickup.com
Comparing 16 Campaign Monitor Alternatives: In-depth Analysis
Constant Contact is an AI-powered email marketing platform established in 1995. It helps digital marketers create and send targeted emails to the right audience, increasing conversion rates and retaining subscribers.
Source: www.engagebay.com
11 Best Email Marketing Software for eCommerce in 2023
Constant Contact, founded in 1995, has stood the test of time and reinvented itself to become one of the best email marketing software for eCommerce businesses. It offers essential email automation features like auto-responder and templates. Additionally, its event marketing tools make it a great choice for eCommerce businesses seeking a simple yet effective email marketing...
Source: www.getshow.io
10 Best Software for Creating Newsletters: Top Picks!
Sending and receiving feedback is easy with newsletter platforms like Mailchimp, Constant Contact, and especially Publicate. What makes a tool like Publicate unique is that it integrates with many email clients โ€“ Gmail, Outlook, and others.
Source: publicate.it

ZIP Code API Reviews

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What are some alternatives?

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

MailChimp - MailChimp is the best way to design, send, and share email newsletters.

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

Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

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

Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.

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

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