Brand Certified
United States Postal Service
3.0(20 reviews)
Certified by United States Postal Service • Aug 30, 2026
Business Details
21 Main St, Warren, ME
04864, United States
Certified by United States Postal Service • Aug 30, 2026
(800) 275-8777
Certified by United States Postal Service • Aug 30, 2026
http://usps.com/postoffice
Certified by United States Postal Service • Aug 30, 2026
About
Certified by United States Postal Service • Aug 30, 2026
Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 21 Main 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 • Aug 30, 2026
Hours
Certified by United States Postal Service • Aug 30, 2026
Monday9:00 AM - 12:30 PM1:30 PM - 4:30 PM
Tuesday9:00 AM - 12:30 PM1:30 PM - 4:30 PM
Wednesday9:00 AM - 12:30 PM1:30 PM - 4:30 PM
Thursday9:00 AM - 12:30 PM1:30 PM - 4:30 PM
Friday9:00 AM - 12:30 PM1:30 PM - 4:30 PM
Saturday9:00 AM - 11:30 AM
SundayClosed
Products & Services
1 list · 30 items
Explore offerings from United States Postal Service on 21 Main St in Warren, with popular services available at this location.
Reviews
3.0
20 reviews
5 stars
10
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1 star
10
- LKLindaJane KAug 23, 20265.0Very friendly, helpful people!
- AAAstralArchonJun 8, 20261.0Poorly managed. Mail and package delivery can be inconsistent, and misdeliveries seem more common than they should be. Overall, I've had a negative impression of how this office is run. Sometimes the staff is pleasant, and sometimes the staff can be rude and unprofessional.
- JCJames CoxenJun 28, 20251.0Went there today and me and steady 5 or 6 other people picking up packages was turned away because there was only one person and they didn’t want to do their job. While I was there numerous people were pulling up and getting turned away. If your hours say open until 11:30 and your doors are unlocked at 11 how are you going to keep turning away people, I wish I had your name so I can include it in the report but it will be easy enough for HQ to find out who was the only person working Saturday, dealt with negligence from this post office since I have moved to Warren between packages not being delivered when they say they are, marked as delivered when it is not delivered, packages left in the mailbox with the mailbox open when there is more than enough room to close the mail box. There have been days where they totally skip us because they don’t feel like delivering the mail. For federal employees this is very sad. Our tax dollars are not paying you to half ass your job, anyone who doesn’t take pride in their work regardless of what it is disgusts me. There is absolutely no reason this many people should get turned away while the store is open and somewhere is there, there’s nothing more important he could’ve been doing than helping local residents get their packages before Sunday when they can’t receive them. I hope this will one day change but I find it highly unlikely
- LSLydia ShortMay 4, 20175.0Friendly & efficient. *Closes at 11:30 on Saturdays
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 services can I find at the United States Postal Service at 21 Main St, Warren?
You can send mail, ship packages, purchase money orders, get Post Office boxes, apply for passports, buy gift cards, and more at this location.
Can I apply for a U.S. passport at this Post Office location?
Yes, this Post Office accepts first-time passport applications and also offers passport photo services by appointment.
Is an appointment required for passport services at this Post Office?
Most passport services require scheduling an appointment through the online scheduler, though limited walk-in hours are available at select locations.
What are the operating hours of the USPS at 21 Main St?
The Post Office is open Monday to Friday from 9:00 AM to 12:30 PM and 1:30 PM to 4:30 PM, Saturdays from 9:00 AM to 11:30 AM, and closed on Sundays.
Can I reserve a PO Box online for this location?
Yes, you can search for available PO Boxes and reserve one securely online at the USPS PO Box management website.
Is there 24/7 access to PO Boxes at this Post Office?
Most USPS locations, including this one, offer 24/7 lobby access to PO Boxes, but specific hours may vary, so please check with this Post Office for exact hours.
What nearby places can help me find or get to the United States Postal Service at 21 Main St?
Nearby places such as the Town of Warren (central government office) and other local Post Offices like Post Office-Warren can help orient visitors. Additionally, landmarks like Warren Recreation and Bangor Savings Bank are close by.
What community services and recreational activities are near the USPS in Warren?
Visitors can explore Warren Recreation, a sports club and league, or visit Resurrection House, a local amusement park and haunted house, before or after their stop at the Post Office.
Are there convenient shopping options near the United States Postal Service at 21 Main St?
Yes, nearby stores include Warren True Value Hardware, True Value home improvement, Lincoln's Country Store grocery and supermarket, and Hops & Chops Inc butcher and delicatessen.
Where can I get automotive or pet emergency services near the Warren Post Office?
Midcoast Diesel Performance and Steel's Real Rod's & Custom's provide automotive repair nearby, while the Midcoast Animal Emergency Clinic offers veterinarian and medical pet services close to the Post Office location.
Brand Certified Facts from United States Postal Service
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