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 129 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
Certified by United States Postal Service • Mar 01, 2026
Reviews
3.5
28 reviews
5 stars
14
4 stars
2
3 stars
4
2 stars0
1 star
8
BS
Beejit Sarker
Sep 18, 2025
5.0
Extremely helpful staff
CH
Charles Hsueh
Jul 4, 2025
5.0
My mail carrier always goes above and beyond to make sure my mail gets delivered to me. I am on first name basis with literally everyone at this PO because my former occupation required me to have to call the post office to track letters. Thank you all for your service!
DR
D R
Dec 22, 2022
1.0
Dec 22 2022. Walked in as door was open at 5:02 and 2 women at counter one was helping a customer. Wanted to mail a package for holiday. One of the women with dark hair yelled out in a Spanish accent"We're Closed"!! I said sorry door was open. It was 5:02 and just 2 min after closing at holiday season. No line and all they had to do was weigh my small box for price.
People like this that give civil service employees a bad name as people that don't care.
Happy holidays to the ones that do
DJ
David Jefferson
Feb 28, 2015
1.0
My packages are marked "delivered" sometimes up to a full day before they're delivered. I contacted the post office and the postmaster told me that it was his policy and he could do whatever he wanted. When I protested, he hung up on me. What's the point of tracking if it doesn't provide accurate information?
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 services are available at the United States Postal Service located at 129 Main St, Stony Brook?
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 first-time passport at this Post Office?
Yes, this Post Office accepts first-time passport applications for the U.S. Department of State and most locations offer passport photo services by appointment.
Do I need an appointment for passport services at this United States Postal Service?
Yes, appointments are usually required for passport services through the online scheduler, but limited walk-in hours may be available at select locations.
What are the operating hours of the United States Postal Service at 129 Main St?
The Post Office is open Monday through Friday from 9:00 AM to 5:00 PM, and Saturdays from 9:00 AM to 1:00 PM. It is closed on Sundays.
How can I reserve a PO Box at this Post Office?
You can search for available PO Boxes and reserve one online at https://www.usps.com/manage/po-boxes.htm and complete the setup in person at the location.
Is 24/7 access available to PO Boxes at this location?
Most USPS locations offer 24/7 lobby access to PO Boxes, but access hours may vary, so it's best to check with this specific Post Office.
What nearby places can I visit before or after my trip to the United States Postal Service at 129 Main St?
You can visit Stony Brook Village, a local shopping center, or stop by the Stony Brook Gift Shop for souvenirs. Village Coffee Market is also nearby for a coffee break.
Are there any nearby dining options to United States Postal Service at 129 Main St?
Yes, nearby you can find Sweet Mama’s for American cuisine and ice cream, Brew Cheese, Stony Brook for dining and drinks, and Farmhouse Kneads NY bakery and restaurant.
Can I combine a visit to the United States Postal Service with some cultural activities nearby?
Absolutely, the Long Island Music & Entertainment Hall of Fame museum is nearby and offers arts and entertainment experiences that complement your postal visit.
How can nearby businesses like Webit Marketing Inc. or Mill Creek Agency help if I visit the Post Office?
If you need marketing support, Webit Marketing Inc. is nearby, and for insurance advice, Mill Creek Agency is close, which can be convenient if you are managing business needs after mailing or shipping at the Post Office.
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