Brand Certified
United States Postal Service
2.4(120 reviews)
Certified by United States Postal Service • May 17, 2026
Business Details
18 Oak St, Brentwood, CA
94513, United States
Certified by United States Postal Service • May 17, 2026
(800) 275-8777
Certified by United States Postal Service • May 17, 2026
http://usps.com/postoffice
Certified by United States Postal Service • May 17, 2026
About
Certified by United States Postal Service • May 17, 2026
Post OfficeShipping ServiceCargo ServicePackaging Supply StoreLogistics ServiceMoney Order ServiceVisa and Passport OfficeUnited States Postal Service
Visit your local Post Office™ at 18 Oak 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 • May 17, 2026
Hours
Certified by United States Postal Service • May 17, 2026
Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
Saturday10:00 AM - 1:00 PM
SundayClosed
Reviews
2.4
120 reviews
5 stars
33
4 stars
11
3 stars1
2 stars
4
1 star
71
- CCCaitlyn6 days ago5.0Huge thank you to Said at the passport counter for coming off his lunch break to help us with passports. There was a line of people with passport appointments and no support for him so he had to jump back to work and finish his lunch later. He made the process quick and painless.
- RRRaul RomeaApr 4, 20265.0Just awesome
- MDMaaeva DDec 9, 20254.0I’m writing this review strictly for Jonathan. He is the only package carrier I’ve had who is consistently reliable, he always picks up my packages on time and drops off the mail when he’s supposed to. In a world where customer service can be hit or miss, Jonathan is the one person who shows up, is kind, professional, and actually cares about doing his job well. Honestly, he’s the only reason I’m leaving a review. He deserves the recognition and the shoutout. Thank you, Jonathan for your hard work!!
- ZZZLMCJun 14, 20221.0This particular USPS delivered a mutilated Mother's day card that had money in it from my mother. Two pieces of the card and two pieces of money were delivered in a USPS bag. When I took it to the Brentwood USPS, they said a superviser would contact me but it has been 3 weeks and still no contacr has been made. I went online to figure out how to get reimbursement of the unusable money, the site said I would not be able to receive replacement unless the mail was sent priority or insured. Thanks USPS for damaging my mail and NOT taking responsibility for it.
- AVAgnes VJan 23, 20171.0I asked my bf to drop my prepaid package and ask for the receipt and they are asking for additional fee for the RECEIPT? They said that's fee for additional paper work, really? Can u pls scan it? No! U'll need to pay for it too!!! Worst than ever...I wish there's zero score
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?
What time can I check my PO Box weekly and on weekends?
What products and services are available at the United States Postal Service at 18 Oak St?
You can send mail and ship packages, purchase money orders, rent Post Office boxes, apply for passports, buy gift cards, and more at this location.
Can I apply for a passport at this Post Office?
Yes, this Post Office accepts first-time passport applications for the U.S. Department of State, and most locations can also take your passport photo.
Do I need an appointment for passport services at this location?
Most Post Offices offering passport services require an appointment through the online scheduler, though limited walk-in hours may be available at select locations.
What are the operating hours of the USPS at 18 Oak St?
The Post Office is open Monday to Friday from 9:00 AM to 5:00 PM, Saturdays from 10:00 AM to 1:00 PM, and closed on Sundays.
How can I rent a PO Box at this Post Office?
You can apply for a PO Box online or in person, providing two valid forms of ID and a completed application if applying in person. Visit the USPS website to start the process.
Are PO Boxes accessible after normal business hours?
Most USPS locations offer 24/7 access to PO Boxes in the lobby, but access hours may vary by location; check with this Post Office for specifics.
What nearby places can visitors explore before or after visiting the Post Office?
Visitors might check out the Sunset Park Athletic Complex for sports and recreation or visit the Brentwood, California Chamber of Commerce community center nearby.
Is there a bank near the United States Postal Service at 18 Oak St?
Yes, Chase Bank is located nearby, which could be convenient for financial services during your visit to the Post Office.
What local services are near this Post Office that might be useful to customers?
Nearby are businesses like Beckford Investigation & Consultant Bureau for financial services, and Oak Street Family Dental for health and dental care.
Where can I find help with home services close to the Post Office?
Precision Clean East Bay and Norcal Air Duct Cleaning are nearby options for home services customers might need in the Brentwood area.
Brand Certified Facts from United States Postal Service
This information is certified by United States Postal Service and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified May 17, 2026Yext Knowledge Graph
- Address
- Categories
- Geo coordinates
- Legal business name
- Hours of operation
- Phone number
- Official website