South Main Post Office

1415 S Main St, Santa Ana, CA 92707

Contact Numbers

Phone: 714-836-0353
Fax: 714-541-6285
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 7:00am - 4:30pm
Tuesday 7:00am - 5:00pm
Wednesday 7:00am - 5:00pm
Thursday 7:00am - 5:00pm
Friday 7:00am - 5:00pm
Saturday Closed
Sunday Closed

Last Collection Times

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

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

  • Burial Flags
  • Business Line
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Street 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:

Industrial Santa Ana
2230 S Grand Ave
0.8 mile away

615 N Bush St
0.8 mile away

1620 W 1st St
1.1 miles away

1517 S Greenville St
1.3 miles away


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No delivery since 7-3-23 unknown why need information


Hello may I kindly ask you for help to resend my parcel which is lost to your post


a lil help here


What ‘s going on at the south main post office in Santa Ana. Mail going to the wrong address & deliverd to wrong street. And NO market add’s, unless I beg for them. Very inconsistent service. A LOT of people here in Whilshire Square are complaining. Some are reporting missing mail & NO mail. The service I am receiving is rated at D-. Please don’t make me rate it at a F.


For 5 days now ( ALL WEEK) my mail has been man handled and shoved into my mailbox! It's crunched up even when there's only 3 letter size envelopes in it. WTF?! My daughter recieved an acceptance letter from a college that was completely wrinkled up. She had planned to keep it in a keepsake folder. I'm so pissed! Who the hell do u have working there?!

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