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8:30AM - 5PM
12935 Alcosta Boulevard, San Ramon
Post Offices
1 - 4:30PM 9AM - 12PM
1701 El Nido Ct, Diablo
Post Offices
“Great experience at the USPS Diablo location! This charming, historic post office is nestled between golf courses in a peaceful country club setting. I had a passport appointment and was in and out in 10 minutes. No lines, and the staff member was friendly, efficient, and even took my photo on-site. It's a small post office with just one staff member, but everything ran smoothly. Hidden gem for passport services!”
“Hey! If this is your flag which I think it is because of POW flag, is time to change it. The flag is split into two and that's a nono. Jun 2025, two months later on a visit, new flag, thank you.”
“My husband and I just received such high quality service it honestly amounted to concierge level service from Ali who processed our expired passport renewal. We arrived without an appointment (you can make an appointment but they will try to serve you if they can even without an appointment,) Ali took our photos, processed the forms and in ten minutes at most, we were all set and out the door. Best of all was Ali’s professionalism and friendly attitude.
UPDATE: On the above review and an added exceptional experience. We applied for our US Passport renewals with Ali at Alamo USPS on July 15, 2025. We received our new Passports Aug 13 and 15, 2025. Great service time.
On Aug 15, 2025, I took my 95 year old aunt in for passport renewal of her expired passport. Ali helped us. His patience and professionalism were superb. Great staff at Alamo, USPS office.”
“I was so nervous to get my first passport, but Dean made the process super simple and straight forward! Very happy and thankful I went to this location and got helped by him!”
“Ruth was very kind and helpful here! She's an excellent employee. She saved me $50 today by finding a spare box in the back so that I didn't have to use the XL size they had in stock. The XL would have cost $74 (and was too big for the stuff I had to ship), but the box she found only cost me $24 to ship. Thank you Ruth!”
“I never thought I would give a USPS location a high rating, 'til I came to this one. They're so friendly and helpful. I was trying to mail a couple of packages and surprised by the cost going to the other coast. I didn't even say anything but the lady there was so nice asked what it was and offered me cheaper mailing options. She even gave me the supplies to repack my packages. And I saw them even offer tape to help someone seal their package better. Can I just say Wow, that's so nice! Usually you get someone very moody behind the counter at other locations that would tell you to buy your own tape. This location is a USPS gem.”
“Always a friendly staff. Saw Cindy this morning at the counter. I was in a rush. Cindy greeted me with a smile and handled my transaction quickly and efficiently. Thank you!”
“Went during lunch on a random Tuesday and they had 3 people working which made the process very fast.
Also got tips from the clerk on priority mail which was very helpful!”
“Such a nice location!
Easy parking
Short Lines
Nice packaging
Denise was so helpful and kind! I was impressed by her professionalism and conduct with another customer who was rude and wanted stamps without paying.”
“The bad reviews worried me but at least in my experience today it was totally fine. Rang the doorbell, lady came out quickly, I explained my issue with my package not being delivered to my home, she found it and gave it to me. Easy as that.”
“A friendly team behind the counters, quick personalized service and an overall neat look of the building (with optimal parking options) all go towards the 5-star rating that this place deserves.”
“I don’t know there are such bad reviews, I had a lovely time if you can getting my postage and packages out. They were very friendly, quick and informative. A machine was broken and they were very apologetic.”
“I would like to say Thank you so much MARIA for helping me. 10 star for you. Maria was so accommodating, nice, kind, and she has a long patience. I have a big box to send overseas and she approached me and help me without any hesitation.
Honestly, there's a few staffs that should help me but they went all at the back of their office so Maria can take my big box which was not fair to MARIA. By the way God bless you Maria and to other staff who doesn't want to help me cause they don't want to carry the big box well then shame on you Guys.
To clarify, this is April 12 2025 transaction only so who ever work on that day then shame on them except MARIA who helped me to carry my big box.
I also want to thank you the other Lady she's quite Old Asian who borrowed me a trolley cause I can't lift heavy stuff. If you read this Thank you so much.”
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“I want to recognize Mei at the San Ramon Post Office for her consistently excellent customer service. Every time I’ve had a question or an issue, she’s been friendly, patient, and quick to offer practical solutions rather than just pointing me elsewhere. It’s clear she genuinely cares about helping customers, and that kind of service makes a real difference. San Ramon USPS is lucky to have her.”