Brand Certified
United States Postal Service
5.0(4 reviews)
Certified by United States Postal Service • Mar 01, 2026
Business Details
43 Main St, Castine, ME
04421, United States
Certified by United States Postal Service • Mar 01, 2026
(800) 275-8777
Certified by United States Postal Service • Mar 01, 2026
http://usps.com/postoffice
Certified by United States Postal Service • Mar 01, 2026
About
Certified by United States Postal Service • Mar 01, 2026
Post OfficeShipping ServiceCargo ServicePackaging Supply StoreLogistics ServiceMoney Order ServiceVisa and Passport OfficeUnited States Postal Service
Visit your local Post Office™ at 43 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 • Mar 01, 2026
Hours
Certified by United States Postal Service • Mar 01, 2026
Reviews
5.0
4 reviews
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4
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- FWFinn WelchMar 29, 20245.0Great service
- JBJ. Temple BlackwoodDec 26, 20225.0Our Castine USPS team is outstanding every day!
- SEsyn edgēSep 22, 20185.0Great post office in a historic building.
- CAChristiaan AdamsJan 8, 20185.0Wonderful small-town post office, with super friendly and helpful staff. This place is reported by the USPS as being the second oldest continuously-operated post office in the country, having been in the same building since 1833. Wish our big city post offices could be as pleasant as this one.
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 43 Main St, Castine?
You can send mail and ship packages, buy money orders, rent Post Office boxes, apply for passports, purchase gift cards, and more.
Can I apply for a passport at this Post Office?
Yes, this Post Office accepts first-time passport applications and can take your passport photo by appointment.
Is an appointment required for passport services at this location?
Most passport services require an appointment through the online scheduler, although limited walk-in hours may be available.
What are the opening hours of this Post Office on weekdays?
Monday to Friday it is open from 9:00 AM to 12:00 PM and 1:00 PM to 4:30 PM.
Does the Post Office offer PO Boxes and how do I reserve one?
Yes, you can reserve a PO Box online and then complete the setup in person at this location with valid ID.
What is the cost of having a small PO Box at this Post Office?
Prices vary by location; you can check the rates for this area by visiting the USPS PO Box pricing website.
Are the PO Boxes accessible after normal business hours?
Most locations, including this one, offer 24/7 access to PO Boxes in the lobby, though specific access hours may vary.
What nearby accommodations could visitors use when visiting the Post Office?
Nearby places to stay include The Castine Inn and Pentagoet Inn & Pub, both offering comfortable lodging options close by.
Are there any local attractions near the Post Office that visitors might enjoy?
Visitors might enjoy the Castine Historic District, Witherle Memorial Library, and the Castine Visitor Center for sightseeing and local culture.
What nearby dining options are available near the United States Postal Service in Castine?
Nearby restaurants include The Breeze & Castine Variety and Danny Murphy's Pub, offering a variety of American, seafood, and Thai cuisines.
Brand Certified Facts from United States Postal Service
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