AFD ZipAddress

Over one hundred million addresses in the United States form one of the largest and certainly the most attractive markets on earth. ZipAddress gives you lightning fast access to the entire United States Postal Service (USPS) – affordably. Use it with everyday applications or integrate it seamlessly using the developer tools provided.

ZipAddress will lookup a Zip+4 code or search for an address instantly.


We were able to start slowly at an affordable rate and our use of WorldAddress has grown with the business. It just works – which means flowers get delivered – and that’s what we are here to do.

David Price

Managing Director at iFlorist

ZipAddress refers to the complete United States Postal Service address database. Reverse search is possible by using partial address data to get full Zip+4 address. It helps you build quality USA postal addressing into your applications – fast.

Developers can integrate ZipAddress quickly into any Windows application using the comprehensive Application Programmers Interface (API).

Try It

Using the form below, start typing a USA address to see results returned. AFD ZipAddress will validate and return address data using the United States Postal Service (USPS).

AFD ZipAddress

USA Validation

Easy to Integrate

Our wide range of integration options include: AFD’s Address validation API, Developer-free integration using our Robot technology, and we can deliver plug-ins for popular platforms such as Magento, Shopify, Salesforce and D365.

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We had the option for an installed or hosted solution and went down the hosted route to ensure our customers can still place orders in the event of our own system’s failure. It gives us one less thing to maintain and worry about.
Nick Marlow
Project Manager of Platform Operations
  • Rapid, accurate USA address verification
  • Helps ensure complete, accurate addresses
  • Flexible implementation for users and developers
  • Integrates easily into any application – comes with many ‘out of the box’ integrations using Robot
  • Ensures stored addresses are consistent with USPS data

ZipAddress brings a high level of control over postal address quality to your data. It ensures address databases populated are accurate and consistently formatted – important to every database manager and marketing professional.

Censation classifies each postcode into one of 52 ‘segments’ each with its own 4 character Censation segment code.The first letter indicates how rich or poor people living in a postcode are likely to be. Are your customers wealthy, prosperous, comfortable, striving or struggling?

The second letter in a Censation code indicates the life-stage of your customers. Young singles, young families, older families, families with children who have left home (empty nesters) or seniors.

The last two digits of a Censation code highlight distinctive characteristics drawn from the underlying Census, Residential or Commercial data or from research, residential and transaction data. A short additional description is put in descending order with the strongest or most likely attribute first. Finally a detailed supporting table with over 30 different characteristics is provided.

Further ‘unclassified’ codes are allocated to postcodes for which census data is unavailable. These mainly describe the make-up of commercial areas.

  • Fast, comprehensive address management
  • Full delivery data on 110 million USA addresses to Zip+4 level
  • ActiveX Component for fast implementation in Desktop Applications
  • Data updated quarterly
  • Free source code examples and Developers kit

Address Data:

  • Full Zip+4 Code
  • Recipient
  • Secondary
  • Primary
  • Urbanization
  • City
  • State
  • Zipcode

Additional Data

  • Record Type
  • Carrier Route ID
  • City Abbreviation
  • County Number
  • County Name
  • LACS Status
  • Congressional District
  • Financial Number

ZipAddress requires approx 730 MB fixed disk space. It works with and is supported on Windows 11 / 10 / 8 / 7 / Vista.

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We are here to help

We serve thousands of organisations and a network of hundreds of partners across multiple industry sectors, enabling them to have full confidence in their contact data.