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8AM - 4:30PM
1801 Town and Country Drive, Norco
Post Offices
8:30AM - 5PM
323 North Turner Avenue, Guasti
Post Offices
“The guasti post office is the best post office in the valley mostly because not that many people know about it. They have the nicest people and the shortest lines. I've been coming here for 25 years”
“Always very helpful, informative, understanding and professional. I never had issues, I always felt a sense of welcome. Carrie is a very good owner of this post office. Very kind. Always helps with any questions, and is helpful with explaining things that benefit our mailing services needed.”
“⭐️⭐️⭐️⭐️⭐️
I’ve always had a great experience at the Post Office on Arlington Avenue (92504). The staff is courteous, knowledgeable, and efficient, even during busy times. They’ve helped me with everything from mailing packages to getting passport forms, and they always do it with a positive attitude. The line moves quickly and the service is reliable. A well-run location that I trust for all my mailing needs!”
“I was helped by one of the most amazing individuals that I ever had encountered. She was very polite, very helpful. What an amazing smile, this young lady. It really makes customer service. I feel appreciated and welcome to her business.”
“Had a package that showed delivered when it hadn't been. 3 trips and several hours later I spoke with Tatiana. She was kind and courteous. She took the time to look into the problem and then explained it thoroughly. Wasn't the result I was looking for but, she was very helpful.”
“Sergio the manager or person in charge definitely runs a tight ship, has all his clerks on check and on point, they have helped me tremendously on all my shipping needs for my business, his mail carriers too do a great job. I've had a few issues here and there but Sergio addresses it promptly anytime I have brought it to his attention. Love this post office, been coming here for years.”
“I've been here a couple times, only to ship things out, the employees are so helpful and from my experience kind. They have a variety of boxes and mailing stuff, and also have cards.”
“It was packed eight minutes before closing. There was 14 people all with packages. I had three. A couple people had a lot of questions and needed guidance. The postal workers were very patient and accommodating and friendly and knowledgeable and they actually got all of us out of there happily without having to go past 5:00pm. WOW! They are ? good. Thank you Ontario Post Office. Way to go.”
“Had a wonderful experience here last week when I went in for Passport service. Alma was great, she was so kind and friendly and extremely helpful. Front staff was nice greeted u with a smile. Will definitely be back . (Customer Service Matters.) Thank you Alma.”
“Surprisingly easy to get in and out of parking. Marking the main lobby doors for counter service and the single door for self service would help a first time visitor.”
8:30AM - 5:30PM
414 West Grand Boulevard, Corona
Post Offices
“I work with Allegra and I've only ever had a good experience with mailing through here. Elva and Lily have taken care of us for quite a while now. We couldn't handle the mailings that we do without them!”
“Lot of bad reviews here for things out of this post office’s control. Don’t complain about long lines, they’re understaffed and work as efficiently as possible from 4am until 10pm. Complain to your senator if you want something done about the lines so more money goes to Usps.Helpful tip, research what you can do online, print your postage, save your time.”
8:30AM - 5PM
1555 East Holt Boulevard, Ontario
Post Offices
“I have been using this post office for my years. It conveniently located for me and parking is never a problem. Although at times it can be crowded, the postal workers do their best to move the line quickly.”
8:30AM - 5:30PM
1941 California Ave, Corona
Post Offices
“Great service here. Susan and Panya went above and beyond to help us with multiple packages At the end of the day. they both were super friendly and helpful and efficient . Can’t thank them enough”
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“I visited this post office this afternoon hoping to apply for a PO Box, but unfortunately there were no boxes available at the moment, so I had to cancel my current mail forwarding service instead.
During the process, there was a taller older manager with glasses who patiently helped me resolve all of my issues. He was extremely kind, professional, and never showed any frustration or impatience throughout the entire interaction.
He carefully explained everything and helped me handle the process smoothly, which I truly appreciated. It’s rare nowadays to meet someone who is genuinely patient and willing to help customers with such a positive attitude.
I wanted to leave this review to encourage and thank him for his excellent service. He truly deserves recognition. Thank you again for your help!”