Post Offices near Montclair, CA

17 locations found near Montclair

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  1. 5186 Benito Street, Montclair CA 91763

    2.8 Average 94 reviews

    “Sergio the manager or person in charge definitely runs a tight ship, has all his clerks on check and on point, they have helped me tremendously on all my shipping needs for my business, his mail carriers too do a great job. I've had a few issues here and there but Sergio addresses it promptly anytime I have brought it to his attention. Love this post office, been coming here for years.”

  2. 323 North Turner Avenue, Guasti CA 91743

    3.9 Good 94 reviews

    “The guasti post office is the best post office in the valley mostly because not that many people know about it. They have the nicest people and the shortest lines. I've been coming here for 25 years”

  3. 23545 Palomino Dr Ste a, Diamond Bar CA 91765

    5 Superb 38 reviews

    “Cyclone Postal is a USPS Postal Partner. This program is similar to the older USPS Contract Station Program. This means they sell stamps and postage at the same rates as the post office. They will accept all of your outbound mail and issue instant tracking.USPS mail is picked up several times daily. (Mon-Sat)Cyclone offers the following:* UPS and FedEx Ground/Express services with daily pickup.* Private Professional Post Office Boxes Services and Package receiving.* Notary and Fingerprint Services.* Faxing Documents* They offer online vendors and businesses complete logistics services to ship their outbound shipping.* Authorized U-Haul Dealer with vehicles onsite.* Pack and Ship your outbound packages.”

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  5. 300 E Bonita Ave, San Dimas CA 91773

    3.2 Average 119 reviews

    “My only complaint is that the outside mailboxes for some reason were locked. It made no sense to me as to why. I was there during regular business hours. The drive thru mailboxes were open so why were the others locked?”

  6. 14071 Peyton Drive, Chino Hills CA 91709

    2.9 Average 192 reviews

    “All I can say with 100% certainty is that this location and their staff is a 1000 times better than the Diamond Bar location on South Diamond Bar Blvd. They don't forgot to put the shipping label on your packages here. The DB location does, they forget and then blame you. I drive all the way here to avoid that location. That staff should be fired and the location closed.”

  7. 140 Harvard Avenue North, Claremont CA 91711

    2.8 Average 86 reviews

    “I am responding to the several selfish, unthoughtful negative reviews posted recently. I have come to this post office for more than 20 years, beginning from the time I was a student at the nearby colleges. I have noticed how USPS head office have steadily reduced the staff, services, and capabilities here while the number of customers has remained the same or grown. Head Office has set up this post office and hundreds more like it to fail. Your unthoughtful complaints are not helping. Meanwhile, staff here struggle valiantly on. I thank them for doing their best in spite of conditions beyond their control. May I recommend before you slam the staff here that you consider writing first to USPS Washington DC and your representatives. Thank you.”

  8. 333 East Arrow Highway, Upland CA 91785

    2.7 Average 180 reviews

    “I normally place my mail in the blue box in front of the PO. But I had to go in to mail an envelope. I didn't wait too long in line. I normally go after 12:30 p.m. for parking. If you go early, there will be less parking. The inside was roomy in line. There is a self check out stand to weigh and pay for your items. There are helpful, courteous, friendly staff helping you. Also to the right, it is the passport area. You need to make an appt if you are getting a new or renewal passport. The left side is the personal post office boxes. It is very spacious. Since the PO closed on Mountain, I drive to the Upland one on Arrow Highway. It is across from the Padua Pasta place. I would recommend this PO.”

  9. 580 West Monterey Avenue, Pomona CA 91769

    2.7 Average 161 reviews

    “We all know that all Post offices are shortstaffed, but the Pomona post office is exceptionally helpful. Well staffed even when they're a long lines. The people do their best to help you. I wish that customers would realize that it's not the workers fault that they don't have enough people to work thank you for Pomona Post Office. 💜”

  10. 1152 Via Verde, San Dimas CA 91773

    2.4 Poor 51 reviews

    “Convenient drop off location, tucked inside a cozy corner at the Good Neighbor Pharmacy. Super friendly service and zero wait time. ? recommend if you have ready to ship packages.”

  11. 123 West Holt Boulevard, Ontario CA 91762

    2.5 Average 62 reviews

    “It was packed eight minutes before closing. There was 14 people all with packages. I had three. A couple people had a lot of questions and needed guidance. The postal workers were very patient and accommodating and friendly and knowledgeable and they actually got all of us out of there happily without having to go past 5:00pm. WOW! They are ? good. Thank you Ontario Post Office. Way to go.”

  12. 1607 N Mountain Ave, Upland CA 91784

    2.5 Average 66 reviews

    “They have multiple services at this address. They have PO BOXES, they have a contract with USPS that allows them to do certain transactions on behalf of the USPS It's a pharmacy, with many other items for sale. You might find what you need here. They don't have the kitchen sink but they have a billion other items you might need”

  13. 3355 North White Avenue, La Verne CA 91750

    2.5 Average 181 reviews

    “Recently I’ve had excellent experiences at this post office. The staff are super helpful, patient and friendly. I had made a mistake with a package I sent and they were very kind in helping me sort out the issue.”

  14. 6649 Amethyst Avenue, Rancho Cucamonga CA 91701

    2.4 Poor 105 reviews

    “The staff who serve me today at this USPS location have an excellent attitude. Typically, bureaucratic behavior is rampant in these institutions, and many of the service staff tend to have bad tempers, poor attitudes, and are quite lazy, behaving as if they're being pampered.”

  15. 5375 Walnut Avenue, Chino CA 91708

    2.2 Poor 207 reviews

    “Surprisingly easy to get in and out of parking. Marking the main lobby doors for counter service and the single door for self service would help a first time visitor.”

  16. 1317 South Diamond Bar Boulevard, Diamond Bar CA 91765

    1.8 Poor 146 reviews

    “I have to admit that the management or system used for 2025 during the busy season (November-December) have improved substantially compared to the last 10 years. The key thing was keeping the drop off bin free of packages getting stuck especially for those that drop off ton of packages. Otherwise you'll have to wait in line just to drop off which could be worse when there are only 1 employee working the front. The most annoying thing would be that the outer door can be locked at times before 9am which means you can't access the drop off bin or PO Boxes earlier.”

  17. 10950 Arrow Route, Rancho Cucamonga CA 91729

    1.9 Poor 269 reviews

    “Huge thank you to Jeremy for being so helpful during the process of mailing out save the dates and wedding invites. I originally had gone to the upland post office to mail my save the dates but when I inquired about something specific they said they “didn’t have that service” which I know for a fact was not true. Then I drove to Rancho and Jeremy immediately helped me with what I needed. Amazing experience, and so much so that I went back when mailing my invites and was helped by him again. Thank you Jeremy for your great customer service!!!”

  18. 1555 East Holt Boulevard, Ontario CA 91761

    1.8 Poor 191 reviews

    “I have been using this post office for my years. It conveniently located for me and parking is never a problem. Although at times it can be crowded, the postal workers do their best to move the line quickly.”

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