LaunchImportance 3 of 5
USPS now offers official ZIP Code boundary polygons
The United States Postal Service announced official ZIP Code boundary polygons are now available via its PostalPro site. The source is the USPS page itself, with a Hacker News discussion linked (601 points, 301 comments).
Why it matters
Builders working on address validation, delivery-zone mapping, local SEO, or geographic targeting can use official USPS boundary data rather than third-party approximations of ZIP Code areas.
Who should care
Ecommerce brands, logistics and delivery teams, local SEO agencies, GIS developers, data product builders
What you can do
Review the USPS ZIP Code boundary page to check the data format, license terms, and update frequency, then test it against your current ZIP-based delivery or territory logic.