United States Postal Service

3.4
30 reviews
Person picking up a package from USPS smart lockers

About

Post OfficeShipping ServiceCargo ServicePackaging Supply StoreLogistics ServiceMoney Order ServiceVisa and Passport OfficeUnited States Postal Service
Visit your local Post Office™ at 6150 Center 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

United States Postal Service
6150 Center St, Clayton, CA
94517, United States

Hours

Reviews

3.4
30 reviews
5 stars
15
4 stars
2
3 stars
2
2 stars
2
1 star
9
  • TC
    Ted Ch
    Dec 4, 2025
    5.0
    Great staff. Quick and efficient
  • EE
    Edge
    Nov 29, 2025
    5.0
    Fast service. Good location 👌
  • ZC
    Zac Case
    Oct 8, 2025
    4.0
    I don't mind going to this post office especially since I live so close. I can't say I haven't had my share of problems with them, but it is the post office and sometimes thats to be expected. Generally when I go I'm in and out as opposed to other larger ones. I wish parking was better, but downtown Clayton is pretty small
  • TB
    Toufik Boukelkal
    Jan 16, 2018
    1.0
    Not helpful staff.go to any other post office

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.