Brand Certified
United States Postal Service
3.5(35 reviews)
Certified by United States Postal Service • Sep 27, 2026
Business Details
420 W 4th St, Antioch, CA
94509, United States
Certified by United States Postal Service • Sep 27, 2026
(800) 275-8777
Certified by United States Postal Service • Sep 27, 2026
http://usps.com/postoffice
Certified by United States Postal Service • Sep 27, 2026
About
Certified by United States Postal Service • Sep 27, 2026
Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 420 W 4th St to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office™ boxes, passports, gift cards, and more
Location
Certified by United States Postal Service • Sep 27, 2026
Hours
Certified by United States Postal Service • Sep 27, 2026
Monday9:30 AM - 4:30 PM
Tuesday9:30 AM - 4:30 PM
Wednesday9:30 AM - 4:30 PM
Thursday9:30 AM - 4:30 PM
Friday9:30 AM - 4:30 PM
SaturdayClosed
SundayClosed
Products & Services
1 list · 5 items
Reviews
3.5
35 reviews
5 stars
15
4 stars
7
3 stars
2
2 stars
4
1 star
7
- DPDavid ParksAug 22, 20265.0Usually there is no line and no traffic. The staff is friendly and very helpful.
- WSWilliam ScottMay 10, 20264.0Not as crowded as Tregalis but opens later. Street parking can be iffy. Staff is friendly and professional.
- BLBrandi LopezDec 29, 20181.0We lived in an apartment for 5 years the whole time we had missing mail. They were delivered in lock boxes so it wasn't stolen. I had to have important things delivered to my grandma to make sure I received our mail. Now we just moved across town and again whenever things are delivered through USPS we don't always receive or takes a long time. A little over a month ago I was waiting on a package that was to be delivered that day. As I was leaving to pick up my sons from school I noticed him nextdoor. So i waited, he skipped our mailbox and the next and went straight to the one down the street. He got out of his truck and seen me looking at him. I left to getT my sons and when I got back our mail was there. Now I was waiting on a package for Christmas, it was sent December 11. On Dec. 17 it was out for delivery. I called them after the holiday and they told me he wasn't able to deliver and it was at our post office. I went to pick it up and they said it wasn't there I had to wait for the driver to find it. Really? I recently seen in the news that they fake their deliveries. I believe that l. What an inconvenience to have to go wait in line for a package he never tried to deliver and then not be able to get because he can't do his job. BTW of he tried to deliver I would have gotten a note saying to pick up the package at the post office. And someone is always home during the day at our home. * Edit this is for the east tregallas branch. The 2 times I picked up at 4th street went ok but will still avoid sending/receiving from USPS.
- RSRobert StevensonJan 11, 20175.0Yep
Frequently Asked Questions About United States Postal Service
Can I get a passport application at this Post Office?
Yes, Thousands of Post Offices™ accept first-time passport applications for the U.S. Department of State. Most of those locations can also take your passport photo. Please complete and print your passport application form before you apply.
Is an appointment needed for passport services?
Most Post Offices that offer passport services have set hours, and you'll need to schedule an appointment using our online scheduler. We also offer limited Passport walk-in hours at select locations.
Does this location take the photo needed for passports?
For first-time passport and photo services, please make an appointment using our online scheduler.
What is the cost to take a passport photo?
The current fee for a passport photo at USPS is $15.
When does this location do walk-in passports?
We offer limited Passport walk-in hours at select locations.
Can I get a PO Box online?
Yes, you can search for available PO Boxes and reserve one online at https://www.usps.com/manage/po-boxes.htm. The process is quick and secure, and you'll receive instructions for completing your setup in person.
How much is a small PO Box?
PO Box prices vary by location. You can check exact pricing for your area by visiting https://www.usps.com/manage/po-boxes.htm and entering your ZIP Code.
Can you get to the PO Boxes in the lobby after hours?
Most USPS locations offer 24/7 access to PO Boxes in the lobby. Access hours may vary by location, so check with your local Post Office for specific lobby hours.
How can I get a PO Box?
You can apply for a PO Box online or in person at your local Post Office. Just bring two valid forms of ID and your completed application if applying in person. To start online, visit https://www.usps.com/manage/po-boxes.htm.
What time can I check my PO Box weekly and on weekends?
You can check your PO Box during lobby hours, which often include extended hours or 24/7 access. Weekend access may vary. Check with your local Post Office for exact times.
What products and services does the United States Postal Service at 420 W 4th St offer?
The Post Office offers mailing and shipping services, money orders, PO boxes, passport services, gift cards, and packaging supplies.
Can I apply for a U.S. passport at this location?
Yes, this Post Office accepts first-time passport applications and most locations can also take passport photos. You should complete and print your application beforehand.
Do I need an appointment for passport services at this Post Office?
Yes, most locations require an appointment using the online scheduler, though some offer limited walk-in hours.
What are the operating hours of this Post Office?
The Post Office is open Monday through Friday from 9:30 AM to 4:30 PM and is closed on Saturdays and Sundays.
How can I reserve a PO Box at this location?
You can search for and reserve a PO Box online quickly and securely, then complete the setup in person with the Post Office.
Is 24/7 access available for PO Boxes at this Post Office?
Most USPS locations, including this one, offer 24/7 lobby access to PO Boxes but access hours may vary, so confirm with your local office.
What is the cost to get a passport photo at this Post Office?
The current fee for a passport photo is $15.
Are there other postal services or similar places near the United States Postal Service at 420 W 4th St?
Yes, Post Office Rivertown is nearby, which also offers postal services and is conveniently located for additional mailing needs.
What nearby community facilities can I visit before or after my Post Office trip?
You can visit the Nick Rodriguez Community Center or its Theater for community events and entertainment near the Post Office.
Are there nearby beauty and wellness services close to this Post Office?
Yes, Vamp Salon Extension Studio, samawithscissors, and Hair by Vicky Galloway at ReNu Salon are nearby locations to get hair and beauty services.
Brand Certified Facts from United States Postal Service
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Certified September 27, 2026Yext Knowledge Graph
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