Antioch Post Office

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

2730 W Tregallas Rd, Antioch, CA 94509

Contact Numbers

Phone: 925-757-0379
Fax: 925-778-8149
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:30am - 6:30pm
Tuesday 6:30am - 6:30pm
Wednesday 6:30am - 6:30pm
Thursday 6:30am - 6:30pm
Friday 6:30am - 6:30pm
Saturday 6:30am - 6:30pm
Sunday Closed

Last Collection Times

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

Passport Appointment Hours*

Monday 10:00am - 3:00pm
Tuesday 10:00am - 3:00pm
Wednesday 10:00am - 3:00pm
Thursday 10:00am - 3:00pm
Friday 10:00am - 3:00pm
Saturday Closed
Sunday Closed

Routine processing has resumed. Please see State Department Response to COVID-19 webpage for more information.
  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 9:30am - 12:30pm, 1:00pm - 3:00pm
Tuesday 9:30am - 12:30pm, 1:00pm - 3:00pm
Wednesday 9:30am - 12:30pm, 1:00pm - 3:00pm
Thursday 9:30am - 12:30pm, 1:00pm - 3:00pm
Friday 9:30am - 12:30pm, 1:00pm - 3:00pm
Saturday Closed
Sunday Closed

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Philatelic Services
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Lot Parking
  • Passport Appointment Hours

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:

420 W 4th St
0.8 mile away

Atlantic Plaza
296 Atlantic Ave
3.2 miles away

835 Railroad Ave
3.3 miles away

400 Del Antico Ave
4.1 miles away


*Comments below are not read by postal employees. Please do not post personal information.

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whoever the mail lady is delivering mail on W. 20th St. in Antioch, She wears a scarf or a hijab , she needs to get it together and stop putting other peoples garbage mail in the wrong mailboxes.


whoever you have delivering packages on klengel street on Saturdays needs to be fired . Seriously its been 4 times now that she has delivered my packages to the wrong house , I know because I have security cameras and can see what she is carrying . She needs to get off her phone and pay attention to what she is delivering or if she is stealing packages. Either way yall need to take care of this . I get your slammed but its no exception when I order 2 items in separate boxes from a company and get shipped the same day and both say delivered and I recive one of them but not the other !! And on top of that you can't speak to anyone about this .


We stopped our mail for Friday the 14th, until we pick it up, and mail is still being delivered, what’s going on?


I'm missing several packages that we're suppose to be delivered on Thursday. The mailman forgot to lock the mailboxes back, and someone stole everyone's things. I want everything replaced


Postal carrier took out inter school mail, not the US mail, from Marsh Elementary School in Antioch. I have been calling the Tregalles Rd post office and the phone rings then hangs up on me. I called the US Postal main line and was told they do not have numbers to call the local office. That is very bad service. How will I get our school mail back?!


Yesterday I received an email that a package had been delivered by USPS and that the package had been left at the mailboxes, which are down the street on a post with other mailboxes. I went to look for my package but it was not there. Why would the mail carrier leave a package on top of the mailboxes where anybody could have taken it. Not very smart.


Yesterday we had mail for pick up in our mailbox and no one picked it up. It's 3pm and it's still has not been picked up. What is going on with our service?


Why is our mail being delivered late in the evening? Yesterday it was delivered at 8:31 PM. (I have cameras). This is recent before it was always in mid afternoon.
• Replied to Lucy Bryce


I have problems with the mail from here. A $200.00 money order disappeared from the envelope it was sent in. Additionally I ordered products from online and they were tampered with. They products I received were of less quality when they arrived. I am extremely dissatisfied with the mail delivery person who refused to give me the info as to who I contact to file a complaint.


I have never had nor heard of a post office as bad as the Tregallas location. I have had many problems with this place and it seems it just continues. Twice I have had mail that never reached it's destination that caused my payments to be late. I received emails that claimed my package was delivered however when I confronted the mailman it was still in the back of his truck. But worst of all my tax REFUND CHECK was on the ground. Are incapable of performing their job or just stupid!


I find it very frustrating when you drop off a package you say it’s been delivered and you walk out and it’s not on your doorstep and it’s not nowhere else just right when it says it got dropped off your t told to do an online filing I have to get through all that nonsense it says you cannot file online claim because it wasn’t insured so what it was the US PS Antioch you gave my package to somebody else I called you immediately and you couldn’t find it


Your service to my residence has been very horrible to say the least.
Start getting the adresses right. It seems as though your postal delivery person can t read!


Uh Deb, maybe YOU should do some reading yourself sweetie. Then you might have caught that little note a few lines up ... right under the large blue letters R-E-V-I-E-W that read: "*Comments below are not read by postal employees".I suggest you call or write your local Post Master to discuss your service issues. You have a wonderful day now!
• Replied to deb

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