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  1. Look Up a ZIP Code™ | PostalPro - USPS

    ZIP Code by Address Enter street address, city, and state to see a specific ZIP Code. Note: A ZIP Code result does not confirm that a person or company is at that address. If you searched for a company …

  2. ZIP CodeLookup | USPS

    A ZIP Code ™ result does not confirm that a person or company is at that address. If you searched for a company and did not get the results you expected, search again either without the company name or …

  3. USPS - Find a ZIP Code

    Enter an address and receive the ZIP+4 code. Here you will find ZIP Code frequently asked questions. Check online and get the answers quickly. Find publications and guides to assist you in managing …

  4. Search Results | zip code lookup - USPS

    https://www.usps.com/manage/po-boxes.htm. Enter a valid street address, city, and state or a ZIP Code™ to find a PO Box at a location

  5. Welcome | USPS

    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 …

  6. Free ZIP code map, zip code lookup, and zip code list

    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.

  7. Fact Sheet: Look Up a ZIP Code - About.usps.com

    Search by address: Enter a street address or P.O. Box, city, and state to get a ZIP+4. Search by city: Get the ZIP Code (s) for a city. Search by company: Enter a company’s partial or complete address …