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United States Postal Service

3.7
(23 reviews)

Business Details

457 Route 25A, Mount Sinai, NY
11766, United States
(800) 275-8777
http://usps.com/postoffice

About

Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 457 Route 25A 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

United States Postal Service
457 Route 25A, Mount Sinai, NY
11766, United States

Hours

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 - 1:00 PM
SundayClosed

Reviews

3.7
23 reviews
5 stars
12
4 stars
3
3 stars
1
2 stars
4
1 star
3
  • JT
    Jessica Tietjen
    Feb 11, 2026
    4.0
    I always have a problem at this location. As a business owner I would not go here. The clerks are always so nice but something always happens with my packages here.
  • JW
    Jon W
    Dec 31, 2025
    5.0
    The Mount Sinai location is the best USPS office in the area. I'm usually in & out far faster at this office than the other ones in my area.
  • VS
    Valerie S
    Jan 30, 2020
    5.0
    Everyone is fabulous from the attendants to the mail carriers!
  • MZ
    MEMNOCH Z
    May 14, 2015
    1.0
    Lost my Priority 2 day package went first to Bethpage 45 mins west of me to Garden City 1hr20 mins further west of me , to Melville Ny 25 mins west of me . Tracking update states there is a delay 2 more days pass. The post office has no idea where my package is , my local post office blames me for ordering a gift on the 6th of May , when in fact it was 25 mins away from me 2 days ago . The tracking finally updated this morning at 11:30. My package is now in Jersey City NJ ?!?!? The address is correct the tracking number is correct and no one could tell me where my package was nor would they help me resolve my problem. The package in question is a gift for my sons 7th birthday.... we live in different states and I am going there specifically for his birthday, they couldn't care less... USPS is a dinosaur that should have gone extinct. Knowledge of your profession is priority.

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.

Brand Certified Facts from United States Postal Service

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Certified May 17, 2026Yext Knowledge Graph
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