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Find accurate and updated ZIP Code information for any address in the U.S. with USPS's online lookup tool.
Need a ZIP Code™? We provide your business several ways to get ZIP Code information.
Welcome to USPS.com. Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need for sending mail and shipping packages.
ZIP Codes by Area and District codes The Excel spreadsheet lists ZIP Codes with the associated Area and District Codes.
United States Zip Codes provides a free zip code map and list of zip codes by state. Find zip codes by address, zip codes by city, or zip codes by state.
Learn the basics of ZIP Codes, including their structure, range, and how to find them on the USPS website.
Enter the 3- or 5-digit ZIP Code ™ you're shipping from. Drag and zoom the map to see the area you're mailing to, as well as Alaska Hawaii, and U.S. territories that receive Priority Mail service.
If you have a residential, business, or PO Box ™ address in an eligible ZIP Code ™ (most ZIP Codes ™ are), you may be eligible for Informed Delivery. To enroll in Informed Delivery with a business street or PO Box address, you need a USPS.com business account.
Also called plus-four codes, 9-digit ZIP Codes, and full ZIP Codes, you can look up USPS ZIP+4 Codes using various tools. Smarty provides some easy-to-use options for single ZIP+4 Code lookups by address, ZIP+4 Codes in bulk (up to millions at a time), and ZIP plus 4 lookup via API.
Find USPS Locations. Search for nearby Post Office™ locations, Collection Boxes, or specific services.