Post Offices near Diablo, CA

15 locations found near Diablo

“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!”

4.6 Superb12 Reviews

“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.”

4.2 Good31 Reviews

“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.”

4.6 Superb22 Reviews

“This is a really nice USPS store located in a nice, serene area in the Clayton Downtown area and next to a nice park, so the area was very green and surrounded by trees and plants. I went there on a weekend morning and pleasantly found that finding street parking to be super easy, and in fact there was a lot of parking available right in front of the store. I was able to conduct my business there and get in and out of the store pretty quickly. Definitely I would go to this USPS store again if I happen to be in the area.”

3.6 Good49 Reviews

“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.”

3.4 Good78 Reviews

“Small, community post office. We've always had great service. Lines can get long around the holidays, like most post office stations, but the team tries their best. We know the work can often be thankless, so kindly ask what you need, but be thoughtful and caring with your local USPS employee.”

3.4 Good71 Reviews

“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!”

3.3 Good64 Reviews

“Shai was the one who helped me twice already, twice I was meiling some important mail/package. He was patient, kind, compassionate and extremely helpful. I understand post office many times are slow and inefficient. Shai was not and he really made my post office experience level up 300%!!!!”

3.2 Average145 Reviews

“Passport application was a breeze. In and out in less than 15 mins with a scheduled appointment time. Helps to keep all the necessary documents in hand as mentioned in the application.”

3 Average89 Reviews

“They don't answer the phone because they don't have one here unfortunately, they have really long lines, and the only good thing about this office is they are helpful and are nearby where I live so I can send packages”

2.4 Poor46 Reviews

“I only give this location five stars because of the sales associate Ed, who always provides excellent service during my visits to the post office. I hope the other staff members can learn from his professionalism.”

2.7 Average122 Reviews

“This is a great post office! It's unfortunate that their reviews don't reflect it.The staff is always incredibly helpful. And they have a lot of patience in dealing with helping people with their packaging. I've never seen a look of contempt from any of them. In fact the opposite. 5 Huge ? ? ? ? ?”

2.4 Poor52 Reviews

“Passports! I had to get passport renewals for minors, and that can only be done in person. It was impossible to get an appointment anywhere, but they do walk-in passport applications here!!!

Here is what I learned and my pro tips:
-walk-in appointments MWF 9-10am ONLY
-They only take the first 20 people… (I don’t know if that’s actually just the first 20 passport, but I don’t think it’s groups)
-If you’re number 21, you’re gonna have to come back another day
-If you wanna make sure you are in that first 20, you need to get your rear end there *** early*** (the line was about 30 people along by 8:30 AM today)
-don’t think that you can show up at 9 AM and be fine, at least not at this time of year
-Come with everything already completed
-Use black ink only
-Better yet fill out your application online and print it out
-Don’t worry about passport pictures, they take them there and charge $15
-They take check or debit card for passports. No credit cards.
-They’re strict and very busy, so bring your patience, be polite and be humble to their process
-if you are eligible to renew by mail, just do it and save yourself the hassle

The lady that helped me was very down to business, but awesome! I think this post office is great, they’re all nice and helpful.”

2.7 Average148 Reviews

“I've been to this office 2 times and always have stellar service from the staff. April has exceeded my expectations in both of my visits and has been patient with answering any additional questions I've had. In my visits, I only had a small piece of mail to send out, nothing too complicated, so didn't think much of what experience I'd get when being helped. I was thoroughly impressed and was greeted with the utmost hospitality. April is good at her job and making sure it is done right. She welcomed me to visit the office again and I'd gladly take the offer when I'm in the area with a mail errand.”

2.4 Poor116 Reviews

“The USPS in San Ramon, California, demonstrates admirable efficiency in mail pickup services. Their promptness reflects a commitment to duty. Additionally, the opportunity for employment at this location presents a chance for individuals to contribute to the community. Moreover, ample parking facilitates ease of access for patrons, fostering convenience and accessibility.”

2.1 Poor159 Reviews