1. Diamond Post Office

    1. Diamond Post Office

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    Santa Ana, CA

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    Diamond Post Office

    1.5 (29 reviews)
    Closed 9:00 am - 4:00 pm

    Diamond Post Office Photos

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    2 years ago

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    1 year ago

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    4 years ago

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    2 years ago

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    4 years ago

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    10 years ago

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    8 years ago

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    8 years ago

    Helpful 2
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    13 years ago

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    12 years ago

    Helpful 3
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    8 years ago

    This is the worst post office ever people don't waste your time there trust me! Hate costumer service not helpful & rude!

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    9 years ago

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    10 years ago

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    12 years ago

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    12 years ago

    Awful customer service. Rude, no courtesy, and they really seem to dislike even being there.

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    12 years ago

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    11 years ago

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    13 years ago

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    10 years ago

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    13 years ago

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    14 years ago

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    11 years ago

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    9 years ago

    The worst USPS location ever. I always have a problem with this USPS whenever I am waiting for a package to be delivered to my house.

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    8 years ago

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    14 years ago

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    10 years ago

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    10 years ago

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    11 years ago

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    11 years ago

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    US Post Office - Inside

    US Post Office

    2.7(142 reviews)
    3.9 mi

    I went to the Santa Ana Post Office at approximately 4:40 p.m., before their posted closing time of…read more5:00 p.m. There were only two employees working at the counter: a man and a woman wearing a red vest. I picked up a form and politely asked the woman if it was the correct form for an international shipment. Instead of responding professionally, she loudly stated, "We don't do them at this time," in a way that everyone in the lobby could hear. She did not apologize or offer any assistance. She then said there were only 10 minutes left until closing, even though it was still before 5:00 p.m. and there were only five people ahead of me in line. A few minutes later, she again announced that they do not process international shipments near closing time, claiming that it takes more than five minutes. She then went to lock the side door and came back to me while I was still waiting in line. She repeated that they would not process my international shipment because they were about to close. I told her that I had already heard her say that multiple times and that I simply needed to pay for the envelope. She continued to insist that I did not need to pay for the envelope instead of addressing my concerns or offering any solution. What was most frustrating was that after 5:00 p.m., several additional customers were still allowed to enter the post office. In fact, as I was leaving, four more people walked in, and there was a line extending out the door. I do not understand why I was refused service for an international shipment when I arrived before closing and other customers were still being allowed into the building. I found the employee's tone and behavior unprofessional, dismissive, and unnecessarily rude. I believe customers who arrive before closing should be treated respectfully and provided with clear, courteous explanations regarding any service limitations.

    Meh it's ok. Not as bad as some post offices but not very friendly like others. The lady who helped…read moreme didn't really speak English well (I speak Spanish fluently so it wasn't Spanish she spoke - I think this employee spoke Chinese since my kids take Chinese in school so I recognize some - but her language for sure wasn't fluent English which was unfortunate) Also be warned they have 2 doors to enter the building and they open at 8:30am. So even though I got there at 8:05 am and I was by far the first in line I had the misfortune to stand by the door they opened second (outside door) so I ended up being 7th in line and the people that got there after me at the inside door got in first. The lady employee literally walked by me standing at the door to open the other door! Frustrating! TIP: at least today December 2025 they open the INTERIOR door before the exterior door. Unlike some locations that are appointment only for passports you can do occasional walk ins here but check the days/times first since they are very specific! Also be warned: if you show up after hours and want to drop off mail in the outdoor drive thru mailbox: you CAN'T because they lock the exterior mailboxes (you know the big blue ones) after hours now to prevent mail theft!

    Photos
    US Post Office - Very well stocked; plenty of manpower!

    Very well stocked; plenty of manpower!

    US Post Office - Grand USP

    Grand USP

    US Post Office - Hours on inside door

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    Hours on inside door

    US Post Office - Tracking

    US Post Office

    1.9(35 reviews)
    0.0 mi

    AVOID GOING HERE IF YOU CAN. First of all, there is no parking lot. You have to try your luck at…read morefinding street parking and let me tell you there isn't much street parking. That should tell you how welcome the public is at this facility. The few times I've had to visit this location I've been the ONLY customer in there and I've never had a pleasant experience. Today was no different. I asked if they had certain stamps and the woman behind the counter acted as if I had just asked her the dumbest question on the planet. How dare I assume the post office would have stamps, that the post office produces....to actually sell to me??? Then I handed her the prepaid/preposted box I was there to drop off and she had the audacity to ask me what was inside the box. What in the actual heck is that about? My mailman doesn't ask me what's inside a box when I schedule a pick up from my house and the drop off area at the Sunflower post office isn't even manned so they aren't asking anyone what's in the boxes they're dropping off. I truly don't understand why the woman who works at this post office is so miserable and petulant. She should work in back and not be up front because customer service is NOT in her skillset.

    Come on Greenville USPS. Get it together…read more Sent it priority. Mail going to Fontana but you guys send it to Georgia only to send it back . Sent it May 9th and today is May 13 and it's still has not arrived yet? Geeez you guys there at Greenville is a joke.

    Photos
    US Post Office - Sent it priority.  Mail going to Fontana  but you guys  send it to Georgia  only to send it back . ?

    Sent it priority. Mail going to Fontana but you guys send it to Georgia only to send it back . ?

    US Post Office - Hours

    Hours

    US Post Office

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    US Post Office - limited edition jeopardy forever stamps

    US Post Office

    2.7(132 reviews)
    4.7 mi

    2-21-2026 I arrived…read morea little before 2 PM, and there appeared to be a long line. But, a lady before me was polite enough to tell us that one was only for passports. There were maybe 5 people ahead of me. I was able to be in and out in about 30 minutes. Around 2:25 PM, people were crowding inside. One booth was partially reserved only for passports. I decided to come here since most locations are either closed on Saturdays or have very reduced hours. I even visited a tiny USPS in Whittier recently that felt super deserted. The downsides are the fact that it is stinky inside (old people funk), and the person behind me got so close as if she was trying to cut the line. But glad I found this place, as it was pretty much the only option for me, due to the availability of hours. My COA was pending and got denied. The employee let me get back in line 3 times, however. I had to fill out a form in person, since the online application was timed out. Hopefully, the system sorts my mail correctly, since the e-mail they sent was extremely insightful. Employees are very kind, and apologized to customers for the wait. They also have ratings for service. FYI: It seems they are also out of tape today. Also, it was really confusing to exit the parking lot since I think they're only three ways to go out and I believe two lead you through residential alleyways.

    I stopped by while I was in the area to request a change of address, and the experience was…read moresurprisingly smooth. An employee quickly assisted me by providing the correct form and guiding me through the process. There was barely any wait, and I was in and out in under 10 minutes. Efficient, straightforward, and hassle-free--exactly what you hope for in this kind of errand.

    Photos
    US Post Office - Lobby doors closed at 7:30 pm

    Lobby doors closed at 7:30 pm

    US Post Office - Kiosks

    Kiosks

    US Post Office - Building

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    Building

    Diamond Post Office - postoffices - Updated July 2026

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