New 42-day free trial Get it now
Smarty

Smarty releases 193 million addresses in new US address list

Smarty's new US Master Address List is the most comprehensive dataset of standardized, validated, and mailable US addresses available.
Updated November 10, 2025
Tags
Smarty's new US Master Address List is the most comprehensive dataset of standardized, validated, and mailable US addresses available.

JUNE 7, 2022 - PROVO, UTAH - Smarty, a leader in location data intelligence, announces the release of its new US Master Address List, a comprehensive dataset of 193 million standardized and verified primary and secondary addresses that are all deliverable by the USPS. With new construction, the list will soon top 200 million.

The Smarty US Master Address List is the most complete and accurate list of mailable US addresses available. Additional data points like whether the delivery point is residential or commercial, parent addresses and associated apartments or suites, shared delivery points, ZIP+4 Codes, and FIPS Codes all provide valuable business insights. Addresses can also feature a persistent unique identifier for superior address data management, reporting and analysis.

“Smarty [validates and standardizes over a trillion addresses annually](/impressive), so we are well suited to create the cleanest, most authoritative, up-to-date list of US addresses available,” explains Jeffrey Duncan, Senior Technical Product Manager. “As Industry experts, we understand idiosyncrasies and edge cases that come with address data. We know how to fix the address problems that other list providers don’t know exist.”

The address list can be used by address list brokers who need the cleanest, most complete US address dataset available to analyze target-market penetration rates, identify underserved areas, identify and target apartments, eliminate duplicates and clutter within data, and more.

“Maintaining such a list requires ongoing effort. Many new addresses are added to the Smarty address list each month due to new construction alone,” continued Duncan. “Across the US, street names change, as do city, ZIP Code, and zoning boundaries. This leaves hundreds of thousands of additional updated addresses and address components every month.”

Alias locations also provide difficulty in the battle for clean data. Alias locations occur when the USPS recognizes multiple addresses for the same delivery point, known as a shared delivery point. A shared delivery point could have a dozen or more addresses that look nothing alike but can all represent the same home due to technicalities in how the USPS operates. For example, the single delivery point on the corner of 31st St and 7th Ave in New York City all share the following three deliverable addresses:

  • 200 W 31ST ST, NEW YORK, NY, 10001
  • 370 7TH AVE, NEW YORK, NY, 10001
  • 7 PENN PLZ, NEW YORK, NY, 10001

You can imagine the confusion, waste, and fraud risks associated with shared delivery points. Many delivery points in the United States have more than one valid delivery address.

“Alias locations routinely result in duplicate mailings, over-reporting assets, inaccuracies in your database, and misrepresentations in market penetration data,” concluded Duncan. “That is why we developed SmartyKey, a persistent unique identifier, for release with the US Master Address List. By associating all the alias locations variations with a unique, persistent identifier we help our customers eliminate duplicates, reduce waste, save time, and improve address data integrity.”

The address list is offered as a full national list via download as an annual subscription with quarterly updates. Address lists by state are also available. Learn more about US Master Address List here.

Subscribe to our blog!
Learn more about RSS feeds here.
Read our recent posts
Smarty customers avoid USPS rate limiting
Arrow Icon
TLDR: Smarty customers won’t feel a thing from the new USPS API restrictions because Smarty doesn’t depend on USPS’s real-time APIs to do address verification. We’ve always used our own, powerful, hyper-accurate data to back our tools and support client needs. While USPS is capping its address verification service at 60 requests per hour and retiring the legacy Web Tools API on January 25, Smarty keeps verifying addresses at full speed on our own infrastructure. We ingest USPS data updates monthly and run verification internally, so USPS API changes, rate limits, or even a temporary USPS outage don’t ripple into your workflows.
Provider data accuracy: Regulatory compliance and hidden network risks
Arrow Icon
Welcome to part one of our new blog series on provider location data—an exploration into the messy, high-stakes world of healthcare compliance, address accuracy, and network adequacy. To kick things off, we sat down with Dave Medlock, founder of Maven One Health and a contributing thought leader, to discuss why clean provider data is essential for achieving peak regulatory compliance and meeting requirements with ease, thereby avoiding serious consequences if it isn’t done correctly. Here’s what he had to say about understanding CMS, state DOIs, continuous audits, rosters, data decay, messy inputs, and the future of address data itself.
Always on; always Smarty: High availability design and engineering best practices
Arrow Icon
When the digital world falters, our goal is simple: stay steady for our customers. At Smarty, reliability isn’t a bragging point, but rather a promise. We’ve built a platform designed to keep running even when others stop, using a vendor-agnostic, redundant infrastructure grounded in engineering best practices that weather disruptions with quiet consistency. Our customers depend on uninterrupted address data services. And, we take that trust seriously. And because we trust you, we’re offering a 42-day free trial on every product.

Ready to get started?