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McDonald's

3.7
(1,506 reviews)

Business Details

(909) 861-2624
http://www.mcdonalds.com/

About

Fast Food RestaurantRestaurantBreakfast RestaurantCoffee ShopBurger JointSandwich RestaurantMcDonald's
McDonald’s USA, LLC, serves a variety of menu options made with quality ingredients to millions of customers every day. Ninety-five percent of McDonald’s approximately 13,500 U.S. restaurants are owned and operated by independent business owners. For more information, visit www.mcdonalds.com, and follow us on social: X, Instagram, TikTok and Facebook.

Details

  • Drive-throughAvailable

Location

McDonald's
205 South Diamond Bar Blvd, Diamond Bar, CA
91765, United States

Hours

MondayOpen 24 Hours
TuesdayOpen 24 Hours
WednesdayOpen 24 Hours
ThursdayOpen 24 Hours
FridayOpen 24 Hours
SaturdayOpen 24 Hours
SundayOpen 24 Hours

Menu

1 menu · 83 items

Explore offerings from McDonald's on 205 South Diamond Bar Blvd in Diamond Bar, with popular burgers, chicken & sandwiches, breakfast, and snacks & sides available at this location.

McDonald's

83 items

Reviews

3.7
1,506 reviews
5 stars
629
4 stars
326
3 stars
224
2 stars
104
1 star
223
  • JW
    James Wu
    3 days ago
    5.0
    Unlike other McDonald’s locations, this location always have good service and always pick up the phone for assistance. I had few incidents where they ran out of a drink and charged incorrectly, but they’ll take care of it right away. Highly recommended this Diamond Bar location.
  • KL
    Kaden Li
    6 days ago
    5.0
    Clean place. Great service. Order never messed up in 4 years! Free refills unlike some other McDonald's!
  • MA
    Marlo Aubert
    Aug 11, 2026
    1.0
    Paid for fresh, got stale and attitude! 👎🏾 If you like cold fries, stale nuggets, and paying extra for special ingredients just to have them completely left off, this is the place for you! My "made to order" Quarter Pounder was clearly just reheated. When I asked for fresh fries to replace the ice-cold ones, I got hit with pure attitude. Thumbs down and no snaps! ✨🚫
  • FR
    Frederick Richter
    Jul 31, 2026
    1.0
    Ordered $75 dollars worth of food a couple days ago for my family while on our road trip. Part of the order included 1 6-piece chicken nuggets and 1 20 piece chicken nuggets for my children to share. The staff brought out all our food but initially forgot the 20 piece and they apologized and it was delivered a few minutes later. With the 6 piece they brought out 2 ranch packs, and when the 20 piece arrived I asked my 12 year old daughter to go up to the counter and ask for ranch packs for the 20 piece as well since none were provided with it. The front counter ignored her for several minutes before she finally got some attention and the employee told her she needed to pay for more ranch. I went up to the counter after she returned and waited several more minutes for the staff to acknowledge me… finally, I got a chance to explain we didn’t get ranch for the 20 piece and an employee told me he would get some in a minute so I left my daughter to wait again and sat down to eat. My daughter returned several minutes later and said that they told her she couldn’t have them again and some lady was paying for them for us. I returned back to the counter and asked how many packets of ranch I should get with a 20 piece, but the staff ignored me. The woman who felt sorry for my daughter insisted she would pay despite my protests and finally I gave in despite the injustice. She paid and asked for the packets right away but the employees decided to attend to other tasks instead of retrieving the packets for several more minutes. We did finally get the packets, but I’ll never visit this location again and I hope the woman who had pity on us never does either. Hope your $.50 ranch packet was worth it McDonalds!
  • AM
    alan mizokawa
    Jul 26, 2026
    3.0
    They don't have the baked apple pie anymore and the fried apple pie is oily and very unappealing.

Frequently Asked Questions About McDonald's

What are McDonald's delivery hours in Diamond Bar, CA?

Delivery is available from 5:00 AM to 11:50 PM Monday through Thursday and Sunday, from 5:00 AM Friday to 3:59 AM Saturday, and all day Saturday from 4:00 AM to 3:59 AM Sunday.

Does this McDonald's location have a drive-through, and when is it open?

Yes, this McDonald's has a drive-through open 24 hours a day, seven days a week.

Brand Certified Facts from McDonald's

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Certified August 23, 2026Yext Knowledge Graph
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