Certified by United States Postal Service • Aug 30, 2026
Post OfficeCargo ServiceLogistics ServiceShipping ServicePackaging Supply StoreMoney Order ServiceUnited States Postal Service
Visit your local Post Office™ at 1317 S Diamond Bar Blvd 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
Certified by United States Postal Service • Aug 30, 2026
Certified by United States Postal Service • Aug 30, 2026
Monday9:00 AM - 5:00 PM
Tuesday9:00 AM - 5:00 PM
Wednesday9:00 AM - 5:00 PM
Thursday9:00 AM - 5:00 PM
Friday9:00 AM - 5:00 PM
Saturday9:00 AM - 2:00 PM
SundayClosed
Products & Services
1 list · 29 items
Explore offerings from United States Postal Service on 1317 S Diamond Bar Blvd in Diamond Bar, with popular services available at this location.
USPS Services
29 items
Services
APC
BIOIPPB
BRMACCTBAL
BRMNEW
BUSINESS
CALLREFERRAL
CARRIER
CARRIERCALLREFERRAL
CONNECTLOCAL
DELIVERYUNIT
FACTERMINALTYPERSS
GIFTCARDS
GREETINGCARDS
GXG
LASTCOLLECTION
LBRORETAIL
LBROSSK
LOBBY
MONEYORDERSDOM
MONEYORDERSINQ
PICKUPACCOUNTABLE
PICKUPHOLDMAIL
PICKUPNOTICELEFT
PMI
POBACCESS
POBDELIVERY
POBOXONLINE
RTLMKTGTERMINALTYPERSS
WINDOWSSERVICE
Reviews
2.4
102 reviews
5 stars
24
4 stars
8
3 stars
6
2 stars
7
1 star
57
XL
X39 LifeWave
Aug 3, 2026
1.0
Horrible services. The 2 male staffs here took forever for just a simple letter sending out. While there is a super long line, the other staff tried to closed up his counter when it's only 4:32pm, left the other slow man by himself with a supper long line of customers waiting. I be here since 4pm but look like only a few customers be taken care of!
BL
Brandon Lee
Jul 16, 2026
5.0
Love this place. The workers are so nice here. Opened a PO box here.
DF
Du Franco
May 26, 2026
1.0
Like always
LC
Louie C
May 7, 2026
1.0
Very disappointed with my local USPS delivery service regarding an important certified passport-related letter that required a signature. I paid extra for expedited handling and expected a proper delivery attempt.
Instead, the carrier left a PS Form 3849 notice in my mailbox marked “dogs” and left immediately without ever ringing the doorbell or attempting contact. I reviewed footage from multiple security cameras around my property, and the video clearly shows there was no actual delivery attempt made.
This was a certified letter requiring a signature, not ordinary mail. Customers pay additional fees for reliable and professional handling of important government documents. Simply writing “dogs” on the slip without even attempting to notify the resident is unacceptable.
What makes this even more frustrating is that this has happened multiple times already. Now I have to waste additional time driving to the post office, waiting in long lines, spending more money on gas, and rearranging my schedule just to pick up something that should have been properly attempted at delivery in the first place.
The entire incident was recorded on camera, including the carrier walking up, placing the slip in the mailbox, and leaving without knocking or ringing the bell. USPS seriously needs to ensure carriers are following proper delivery procedures instead of skipping delivery attempts altogether.
EO
Edgar Ordoñez
Jun 10, 2019
1.0
My NOT so friendly neighborhood post office. I only go when I have to. And when I do I try my best to be positive and spark a light smile and be respectful.... But enough is enough. I hope management actually looks at these reviews and does something about the service in this place. I witnessed an employee scold a middle aged Asian man speaking to him like he as 5. The guy respectfully didn't say anything but just did what she asked. That is unacceptable.
I respectfully waited in line to pick up a package. Apparently it wasn't the date to pick it up, the employee was not at her place so I had to wait for her to get out of whatever she was doing out of sight and grab my slip and then turn around and tell me "your pick up is tomorrow". The words objectively sound ok. But the tone and body language was unacceptable. What happened to friendly service?
In a world now where customer service is king and providing a great experience makes it or breaks it in business this level of service is unacceptable. Maybe my expectations are too high? Maybe I am the one being unreasonable?
Please give these employees training and hold them accountable to behaviors that put going to the post office a good efficient experience. Mediocre at Best. Not great just good. This is really bad as understanding as I try to be.
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.
Does this location take the photo needed for passports?
For first-time passport and photo services, please make an appointment using our online scheduler.
What is the cost to take a passport photo?
The current fee for a passport photo at USPS is $15.
When does this location do walk-in passports?
We offer limited Passport walk-in hours at select locations.
Can I get a PO Box online?
Yes, you can search for available PO Boxes and reserve one online at https://www.usps.com/manage/po-boxes.htm. The process is quick and secure, and you'll receive instructions for completing your setup in person.
How much is a small PO Box?
PO Box prices vary by location. You can check exact pricing for your area by visiting https://www.usps.com/manage/po-boxes.htm and entering your ZIP Code.
Can you get to the PO Boxes in the lobby after hours?
Most USPS locations offer 24/7 access to PO Boxes in the lobby. Access hours may vary by location, so check with your local Post Office for specific lobby hours.
How can I get a PO Box?
You can apply for a PO Box online or in person at your local Post Office. Just bring two valid forms of ID and your completed application if applying in person. To start online, visit https://www.usps.com/manage/po-boxes.htm.
What time can I check my PO Box weekly and on weekends?
What time can I check my PO Box weekly and on weekends?
What services does the United States Postal Service at 1317 S Diamond Bar Blvd offer?
This Post Office provides mail and package shipping, money orders, PO Boxes, passports, gift cards, and more.
Can I apply for a passport at this Post Office location?
Yes, this location accepts first-time passport applications for the U.S. Department of State and can take passport photos by appointment.
Is an appointment required for passport services at this Post Office?
Most passport services require scheduling an appointment online, though limited walk-in hours are available at select locations.
Does this Post Office provide passport photos, and what is the cost?
Yes, passport photo services are available by appointment, and the fee is $15.
How can I rent a PO Box at this Post Office?
You can search, reserve, and apply for a PO Box online or in person by bringing two valid IDs and a completed application.
What are the operating hours of this USPS location?
Open Monday to Friday from 9:00 AM to 5:00 PM, Saturday 9:00 AM to 2:00 PM, and closed on Sundays.
Is 24/7 access available for PO Boxes at this location?
Most USPS locations offer 24/7 lobby access to PO Boxes, but access hours may vary; please check with this local Post Office.
What nearby dining options are available around the Post Office?
Nearby restaurants include Fusion 2 Any 1 Sushi & Roll for Asian cuisine, Rainbow Donuts for baked goods, and Kogi BBQ for American food, great for a meal before or after your visit.
Are there any nearby service providers that complement the Post Office services?
Yes, nearby are services like Diamond Bar Mail And Shipping and UPS Authorized Shipping Outlet for additional shipping options.
What nearby stores and amenities could I visit near this Post Office?
Nearby you can find an AT&T Store for mobile needs, 7-Eleven convenience store, and Diamond Bar Optometric Center for eye care, convenient for multi-tasking your errands.
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