Comma-Separated Values (CSV) Text File
Official U.S. Postal Service five digit ZIP Code
If the ZIP Code is a Point ZIP Code with a corresponding ZCTA, this will have the ZCTA.
U.S. Postal Service ZIP Code database type codes:
B = Single High-volume Address
M = APO/FPO Military
E = P.O. Box Only
No value indicates standard general delivery
Official U.S. Postal Service state abbreviation