# USPS now offers official ZIP Code boundary polygons

- HackerByte page: <https://hackerbyte.net/en/stories/the-us-postal-service-has-released-polygon-data-for-official-zip-code-boundaries-50431058>
- Original source: <https://postalpro.usps.com/zcb>
- Hacker News discussion: <https://news.ycombinator.com/item?id=50431058>
- Submitted to Hacker News: 2026-11-09T19:58:59.000Z

The US Postal Service has released polygon data for official ZIP Code boundaries to facilitate geographic data usage.

## AI-generated summary

The United States Postal Service \(USPS\) has launched a new offering that provides official ZIP Code boundary polygons. This data leverages USPS delivery address and location information to define accurate boundaries, with updates reflecting changes in delivery distribution. The polygons are intended to benefit various industries including mapping, marketing, real estate, logistics, and transportation.

## Key points

- USPS now provides official ZIP Code boundary polygons.
- Data is based on USPS delivery address and location information.
- Boundaries are updated quarterly to reflect changes.
- Useful for mapping, marketing, real estate, logistics, and transportation industries.
- Can be used as ground truth for ZIP Code data and demographic analysis.