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United States Postal Service

3.1
(64 reviews)

Business Details

1126 N Mountain Ave, Ontario, CA
91762, 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 1126 N Mountain 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

Location

United States Postal Service
1126 N Mountain Ave, Ontario, CA
91762, United States

Hours

Monday8:30 AM - 5:00 PM
Tuesday8:30 AM - 5:00 PM
Wednesday8:30 AM - 5:00 PM
Thursday8:30 AM - 5:00 PM
Friday8:30 AM - 5:00 PM
SaturdayClosed
SundayClosed

Reviews

3.1
64 reviews
5 stars
29
4 stars
3
3 stars
4
2 stars
3
1 star
25
  • JP
    Juan Diego Perez
    May 8, 2026
    5.0
    Friendly staff
  • BC
    Bryan Cruz
    Apr 21, 2026
    2.0
    This review is for the interaction I had with Alex, middle aged asian employee working at the counter on 4/21/2026, around 4:50pm. I was disappointed due to the lack of effort/expertise he showed. I expect this review to be used as a training moment and to open the management team’s eyes to how improperly staffed/trained this location is. Now, to start off, I walked there, and arrived around 4:45pm, before closing. No one was at the front, a minute later he comes to assist me. All I needed was him to scan a TikTok return QR code and explain if I needed to do anything else. Very simple, I was returning a perfume. Hazardous due to alcohol and oil. TikTok states “Box Needed” not a label, so it’s a drop off unless the USPS employee tells me otherwise. After giving him that info he still seemed helpful. But he refused to scan it. It’s not a tracking label, it’s a “USPS Label Broker ID,” as we kept conversing he started interrupting me, almost implying for me to hurry as a line was forming behind me. He could not give me a proper reason as why not to scan this code, what I understood from our interaction was that if he scanned this QR code, that it could potentially get him in trouble. He also said if it’s a “G” they won’t take it. But dude, this is a QR code not a shipping label. And if “G” means ground, then from the first 30 sec of us talking I would’ve left with a tracking label or a specific location/phone # to reach out to. Getting a shipping label printed for me and going home to order the pick up is something I was open to doing and stated I to him. His solution was go to any other post office, like if it didn’t just walk there and it’s closing time for all of them in my area. USPS Management please re-train ur employees and give them help, Alex isn’t to blame if y’all expect him to do it all on his own…
  • JP
    Journey Paul
    Mar 30, 2026
    5.0
    Friendly employees.
  • AR
    Amelia Rose
    Mar 6, 2026
    1.0
    The blonde lady at the front needs to check her attitude before clocking in. There's no need for her to be rude to people. She seems to be mad at everyone, especially if they don't know what they have to do when shipping something. I wish she could be more like the man who works there. He's much more welcoming.
  • 1V
    1000 Subs Without Any Videos
    Feb 24, 2026
    1.0
    Employee couldn’t be bothered to answer my questions when I went in there, very unhelpful

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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