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  1. 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 …

  2. Post Offices in San Diego, CA - Location and Hours Information

    Post Offices in San Diego, California. 39 Locations with operating hours, phone number, and services. Find info for any nearby postal service.

  3. San Diego, CA Post Offices - PostOfficeFinder.org

    There are 39 post office locations serving 31 unique zip codes within San Diego, California in San Diego County.

  4. San Diego California ZIP Codes - Map and Full List - Zipdatamaps

    6 days ago · San Diego California is covered by a total of 75 ZIP Codes. There are also 20 ZIP Codes that overlap San Diego but have a different postal city name. The ZIP Codes in San Diego range …

  5. San Diego, CA ZIP Codes, Map and Demographics

    Jan 1, 2026 · Line chart of All ZIPs in San Diego, CA population estimates from 2011-2023, with markers for the 2010 and 2020 Decennial Census counts to show growth or decline over time.

  6. SAN DIEGO, California ZIP Codes

    ZIP Codes for SAN DIEGO, California. Use our address lookup or code list to find the correct 5-digit or 9-digit (ZIP+4) code for your postal mails destination.

  7. San Diego Post Office Locations and Hours

    California San Diego County San Diego List of San Diego Post Offices Addresses, Phone Numbers, and Business Hours for Post Offices in San Diego, CA.

  8. U.S. Postal Service (USPS) | USAGov

    The U.S. Postal Service (USPS) provides mail processing and delivery services to individuals and businesses in the U.S.

  9. US Postal Products | San Diego, CA | Postal Connections San Diego

    Postal Connections San Diego offers USPS postal products and services in San Diego, CA, 4231 Balboa Ave

  10. Find USPS Post Offices & Locations Near Me | USPS

    Find USPS locations like Post Offices, collection boxes, and kiosks so you can send packages, mail letters, buy stamps, apply for passports, get redeliveries, and more.