They offer a free USA postal code database in text format.
Most of these text files are "Public Domain" or "MIT License," but always check to see if you need to attribute the creator.
A comprehensive .txt or .csv file containing approximately 165,000+ entries of U.S. populated places, zip codes, or street-level data. Where to find it: Download 165K USA txt
This is the gold standard for creating custom .txt dictionaries. Use Cases: Training simple AI or autocorrect models. Creating "Wordle" style games. Developing crossword or anagram solvers. How to Download Safely
Ensure the file ends in .txt or .csv . Avoid .exe or unexpected zip files from unverified sources. They offer a free USA postal code database in text format
Use reputable repositories like GitHub , Kaggle , or official government sites (like USGS ).
Below are write-ups for the most common datasets matching your description. Option 1: USA Geographic/Postal Data (Zips & Towns) populated places, zip codes, or street-level data
Regardless of which file you need, follow these steps to ensure you get a clean dataset: