United States Postal Service

2.8
71 reviews

About

Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order Service
Visit your local Post Office™ at 3330 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

United States Postal Service
3330 Main St, Mammoth Lakes, CA
93546, United States

Hours

Reviews

2.8
71 reviews
5 stars
26
4 stars
4
3 stars
6
2 stars
1
1 star
34
  • NA
    Nick Anderson
    6 days ago
    1.0
    Literally the WORST post office in America! The employees are profoundly unhelpful, refusing to look for packages available for pickup or give you packages that are at the post office waiting. They can take days just to deliver to a PO box, and it can be nearly impossible to pick up packages that have house addresses. This post office should be AVOIDED LIKE THE PLAGUE!!! UPS, fedex, DHL, even CARRIER PIGEON IS BETTER!!!
  • NA
    Nick Anderson
    Jul 30, 2025
    1.0
    Lazy, slow, closes early, will take days to make packages available for pickup. Try to NEVER SHIP USPS TO MAMMOTH!!! TERRIBLE EXPERIENCES EVERY TIME!!! Worst post office in America!
  • MB
    Michael Bertalan
    Jul 14, 2025
    5.0
    Excellent and friendly Service. They have all the boxes and Sticky tape you need
  • AK
    Alex Kora
    Jun 17, 2025
    5.0
    As a PCT hiker, I’m more than satisfied with this post office. I sent myself a general delivery box — it arrived quickly. I picked it up in under a minute. The staff are friendly, kind, and happy to see hikers.
  • BS
    Barb Sears
    Jun 11, 2019
    1.0
    Most nasty, hateful, people on the planet work here. They give all postal employees a black eye. They had my hike resupply box (confirmed) when I arrived and refused to give it to me. If -0 stars were an option, that is what they would have received.

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.