What is Zip Code USA?
Zip Code USA is the “Entire File With Duplicate Zip Codes With Alternate City Names”: a ZIP code appears once for each city name it can carry.
What file formats do I get?
The files come in three formats: Comma Delimited ASCII, Fixed Length ASCII (TXT) and Dbase Format (DBF). Each format is its own .zip download.
How often is the data updated?
Every month. The current edition is October 2026, on the Downloads page.
How much does it cost?
$300 for a 1-year subscription to Zip Code USA, with Zip Code USA Jr included free. File passwords are emailed only after payment. See pricing.
Is Zip Code USA Jr included?
Yes. Zip Code USA Jr (“No Duplicate Zip Codes With Standardized City Names”) comes free with every $300 Zip Code USA subscription and is in the monthly downloads.
How do I download this month’s files?
Go to Downloads (it’s in the menu on every page) and click the format you need. The file opens on Dropbox, where you can download the .zip.
Where do I get the password for the files?
We email you the file password only after payment. If you can’t find it, call 912-421-3118 or email Sales@Malby.us.
How do I renew?
Use the same button you ordered with: Order or Renew Zip Code USA.
Do you take international orders?
Yes. For international orders, please phone 912-421-3118 or contact us.
Are the Zip Apps really free?
Yes. Zip Apps runs in your browser with no sign-up. All five apps work today: ZipWeather, ZipRadius, ZipTV, ZipGas and ZipRestaurants. The apps show small ads for our own products.
Where does the free ZIP lookup data come from?
The lookup on this site and the Zip Apps use the USPS City-State file and the U.S. Census ZCTA file. ZipWeather forecasts come from the National Weather Service, and ZipTV’s predicted station coverage comes from FCC data. ZipGas and ZipRestaurants list places from OpenStreetMap, and ZipGas’s weekly average gas price comes from the U.S. Energy Information Administration (EIA).
Who is behind Zip Code Nation?
Malby Enterprises LLC, providing demographic data since 1995. Reach us at 912-421-3118 or Sales@Malby.us.
Questions about the data?
Talk to a real person at Malby Enterprises LLC. We’ve provided demographic data since 1995.