Knowledge: ZIP Code™ - The Basics - faq.usps.com
Need to look up a ZIP Code™? Try the ZIP Code™ lookup tool on USPS.com. Note: The ZIP Code™ lookup tool will display the address in USPS standardized format. This may look …
ZIP Code - Wikipedia
The ZIP Code system (an acronym for Zone Improvement Plan[1]) is the system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that …
ZIP Code Meaning: What the Numbers Mean & How They Work
Jun 21, 2025 · The 5-Digit ZIP Code: The standard ZIP code consists of five digits, which identify a specific geographic region. This system allows the USPS to efficiently route mail to the …
What is Zip Code and How Do Zip Codes Work? - PostGrid
Each ZIP Code corresponds to a specific geographic area, aiding in sorting and direct mail from the point of origin to the destination more accurately and swiftly. A ZIP code™ consists of …
BIRMINGHAM, Alabama ZIP Codes
Use our address lookup or code list to find the correct 5-digit or 9-digit (ZIP+4) code for your postal mails destination.
What Is a ZIP Code? Definition, ZIP+4, Lookup, and USPS Basics
In plain terms, it’s a five-digit identifier (with an optional ZIP+4 add-on) that helps the Postal Service sort mail, pick efficient routes, and get letters and parcels to the right delivery area on …
Free ZIP code map, zip code lookup, and zip code list
US ZIP codes are a type of postal code used within the United States to help the United States Postal Service (USPS) route mail more efficiently. ZIP codes near me are shown on the map …
Understanding U.S. ZIP Codes: What Each Digit Means in the ZIP Code
Jul 10, 2025 · But what exactly do the numbers in a ZIP Code mean? In this article, we’ll explain the meaning behind both the 5-digit ZIP Code and the 9-digit ZIP+4 Code, including what each …
ZIP Code Meaning & History: Everything You Need to Know
Jun 11, 2025 · Each ZIP Code is a five-digit number that organizes addresses into specific geographic areas and delivery routes, making it easier for USPS to sort and deliver mail …
Alabama ZIP Code List
List of all Zip Codes for the state of Alabama, AL. Postal code list includes all cities and counties in Alabama.