The United States Postal Service (USPS) is the only organization in the country that regularly delivers to every residential and business address. Committed to providing secure, reliable, and affordable delivery of mail and packages, USPS manages over 30,000 retail locations and processes 47 percent of the world's mail. While the staff at the local Post Office™ in Diamond Bar is generally friendly and accommodating, the facility itself is in need of renovations and modernization. Customers report mixed experiences, with some encountering no issues and others experiencing delays or a sense of disinterest from the staff. Overall, USPS strives to offer a positive customer experience, though the quality can vary depending on the location.
Why don't the employees just quit! They all act like they'd rather be somewhere else. I guess they hate there job. And why can't we get mail delivered the same time everyday. I'm from La Cresenta and you can set your watch to the mail delivery there.
July 2025
Lately, there are many mails missing.
Be alert your mails; don’t put them in your boxes…. Especially, the check payments!!
Wow…. What’s going wrong with US POSTAL OFFICES?!?!
July 2025
05/23/2025 at ~1:30 pm
They misdelivered and lost an important package. Probably got taken. Not the first time they’ve misdelivered my package (good thing neighbor returned it to me that time). But this time, I still don’t have my package now. And customer service was no help. Thanks, USPS!
