Brand Certified
United States Postal Service
3.4(90 reviews)
Certified by United States Postal Service • Apr 26, 2026
Business Details
100 Admiral Callaghan Ln, Vallejo, CA
94591, United States
Certified by United States Postal Service • Apr 26, 2026
(800) 275-8777
Certified by United States Postal Service • Apr 26, 2026
http://usps.com/postoffice
Certified by United States Postal Service • Apr 26, 2026
About
Certified by United States Postal Service • Apr 26, 2026
Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 100 Admiral Callaghan Ln 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 • Apr 26, 2026
United States Postal Service
100 Admiral Callaghan Ln, Vallejo, CA
94591, United States
Hours
Certified by United States Postal Service • Apr 26, 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
Saturday9:00 AM - 3:00 PM
SundayClosed
Reviews
3.4
90 reviews
5 stars
42
4 stars
8
3 stars
8
2 stars
7
1 star
25
- JMJasmine MeshackApr 15, 20265.0Bryant provides excellent customer service. Love when I see him there. He is patient, respectful, kind, and funny. I thought my package was lost and he was calm and helpful. Turns out he was right. I had to make sure I let him know. Lines move fast.
- THTeam HayashidaDec 1, 20255.0I’m not sure how this post office has bad reviews. The workers here provide the best service!! Super nice folks, they go out of your way to help you. They honestly made my day!
- MMMarco MoroyoquiNov 20, 20255.0I received the best service at this post office on Admiral Callahan in Vallejo CA. The employees, Bryant, Sean and Inder exceeded my expectations with their dedication to customer service. They helped me with mailing my package by looking for the correct address. Thank you very much.
- KBKathryn BrosseauNov 6, 20254.0Very friendly staff, a little slow. But at least I'm not just a number
- KYKaren YoungJul 3, 20205.0I have used this particular post office for quite sometime now. I feel these employees are not only friendly but every helpful. Sometimes the line is very long but they all seem to help each customer with their needs and very patience manner. Thank you all for doing your jobs so well!!
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.
Where is the United States Postal Service located in Vallejo, CA?
The United States Postal Service is located at 100 Admiral Callaghan Ln, Vallejo, CA 94591.
What services does this USPS location at 100 Admiral Callaghan Ln offer?
This USPS location offers mail sending and package shipping services, money orders, PO Boxes, passport services, gift cards, and more.
Can I apply for a U.S. passport at this Post Office?
Yes, the Post Office accepts first-time passport applications and most locations can also take your passport photo. You should complete and print your application before applying.
Do I need an appointment for passport services at this USPS location?
Most Post Offices offering passport services require an appointment via their online scheduler, though limited walk-in hours may be available.
What are the operating hours of the United States Postal Service in Vallejo?
The USPS is open Monday to Friday from 9:00 AM to 5:00 PM, Saturday from 9:00 AM to 3:00 PM, and closed on Sunday.
How can I reserve a PO Box at this USPS location?
You can search, reserve, and apply for PO Boxes online at the USPS website and complete the setup in person at the local Post Office.
Is there 24/7 access to PO Boxes at the Vallejo USPS?
Most USPS locations offer 24/7 access to PO Boxes in the lobby, but hours may vary by location. Please check with this Post Office for exact lobby access times.
What are some nearby educational and community services close to the USPS at 100 Admiral Callaghan Ln?
Raptors Academy, an elementary school offering community services, is located near this USPS location, useful for families and community members visiting the area.
Are there nearby dining options when visiting the USPS in Vallejo?
Yes, nearby dining options include Gaga's Rollin Diner, Tacos Mexico, and Jack in the Box, great for grabbing a meal before or after your visit.
What hotels are located near the United States Postal Service at 100 Admiral Callaghan Ln for visitors?
Visitors can consider nearby hotels such as Travelodge by Wyndham Vallejo/Napa Valley, Motel 6 Vallejo, Studio 6 Vallejo, or Howard Johnson Inn & Suites of Vallejo for accommodations close to the Post Office.
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 April 26, 2026Yext Knowledge Graph
- Address
- Categories
- Geo coordinates
- Legal business name
- Hours of operation
- Phone number
- Official website