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Visit your local Post Office™ at 309 Mount Pleasant Ave 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
The absolute worst experience I would never go back to that post office
MH
mo harun
Dec 3, 2025
2.0
Reid do not be the grinch that stole joy. He has to change his demeanor. No cost to be nice. His tone when talking to citizens is unacceptable for a quiet and peaceful neighborhood. Seems he has been here for years. Nothing has been done.
AP
Anthony Pugliese
Aug 20, 2025
1.0
Very confusing regarding passport applications. Schedule an appointment, walk in? Your guess as good as mine. No one knows when the passport guy is today. Today? They don't know. Tomorrow? They don't know. What they do know is the passport guy has a two hour lunch- from 12 to 2. You better get in before 11 or he won't start it and his lunch ends at 2. No applications are done after 2.
Website says they do passport photos, but they don't. Stay away if you need a passport. Go somewhere else- except the Larchmont post office.
No accountability at either location...
DA
David Armstrong
Aug 4, 2025
1.0
So incredibly unhelpful. Rude and obnoxious. Felt like I was disturbing them by not knowing everything about how the postal system works. On phones the whole time. Go to a different office.
DM
Doris Mejía
Mar 13, 2018
1.0
They’re phone operator is so stupid and then it takes an hour to talk to a representive! So frustrating!!
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 Mamaroneck?
The United States Postal Service is located at 309 Mount Pleasant Ave, Mamaroneck, NY 10543.
What are the operating hours of the United States Postal Service at 309 Mount Pleasant Ave?
The Post Office is open Monday to Friday from 8:30 AM to 6:00 PM, and Saturday from 8:30 AM to 4:00 PM. It is closed on Sundays.
Can I apply for a U.S. passport at this Post Office?
Yes, this Post Office accepts first-time passport applications for the U.S. Department of State. Most locations can also take your passport photo with an appointment.
Do I need an appointment for passport services at this location?
Yes, most Post Offices require you to schedule an appointment using the online scheduler for passport services. Limited walk-in hours may be available at select locations.
Does the Post Office at 309 Mount Pleasant Ave take passport photos?
Yes, but you need to make an appointment for passport photo services via the online scheduler.
How much does a passport photo cost at this Post Office?
The current fee for a passport photo at USPS is $15.
Can I rent a PO Box online through this Post Office?
Yes, you can search for and reserve PO Boxes online at https://www.usps.com/manage/po-boxes.htm, then complete your setup in person at the Post Office.
Are PO Boxes accessible after hours at this location?
Most USPS locations offer 24/7 lobby access to PO Boxes, but access hours may vary. Check with this Post Office for specific lobby hours.
What nearby places should I check out when visiting the Post Office at 309 Mount Pleasant Ave?
Nearby you can find dining options like SmokeHouse Tailgate Grill, Sal's Pizzeria, and Hector's Taco & Salsa Bar, perfect for a meal before or after your visit. There are also services like Mamaroneck Village Fire Department and Rickert Lock and Safe in the area.
How can nearby public services help me when visiting the Mamaroneck Post Office?
Nearby public services such as the Village Of Mamaroneck Fire Department and Mamaroneck Village Fire Department provide a secure environment around the Post Office. Their proximity can be reassuring during your visit.
Which nearby businesses can complement my visit to the USPS at 309 Mount Pleasant Ave?
You might consider visiting local businesses such as Cromwell Leather Co for leather products, M and M Hair Salon for grooming, or Solis Jewelry Design for gifts. These are all conveniently located near the Post Office.