Serra Mesa Post Office

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

3223 Greyling Dr, San Diego, CA 92123

Contact Numbers

Phone: 858-277-4903
Fax: 858-277-8746
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 5:00pm
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Serra Mesa Annex
3245 Greyling Dr
0.0 mile away

Riverfront Carrier Annex
2600 Camino Del Rio N
1.2 miles away

Mission Valley
1640 Camino Del Rio N Ste 202
1.3 miles away

Linda Vista
2150 Comstock St
1.5 miles away


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Modernaire Apt Complex 2393 Cardinal Drive, apartment building On Wednesday evening, July 29, 2020, I found our group mailbox door not locked properly. Very unsecure. This has happened twice before that I have seen. I wrote to you about this previously. If there is a problem with the mailbox itself, then it needs replacing. If it is a carrier substitute, then they need to be reminded because our regular guy has always been very good, very conscientious at his job. Mail security is already getting to be a hot political issue this year. We just want our vital mail to remain private and secure. Thank you.

* is not a part of, or affiliated with, the official United States Postal Service (USPS).