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McDonald's

3.7
(1,512 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
1,512 reviews
5 stars
630
4 stars
325
3 stars
225
2 stars
106
1 star
226
  • SF
    Steven Fitzgerald
    6 days ago
    1.0
    This place is absolute garbage. I only come here because it’s the only McDonalds in Diamond Bar and my 5 year old loves his Happy Meals. That being said, ALWAYS, ALWAYS double check your order after they hand it to you. They 100% of the time either give you something you didn’t order or forget something in your order. Tonight I ordered a double filet fish sandwich with extra sauce and extra cheese. Literally gave me just a regular filet fish sandwich but still charged me for the extra stuff. Large fries were only filled less than halfway. Bbq sauce instead of the honey mustard I asked for. This place literally is the WORST McDonalds on the planet. It bugs me just thinking these employees think they’re worth anything over $8 an hour.
  • AM
    Andrea McGuire
    Oct 6, 2026
    5.0
    I usually get the fish sandwich. It's really good here because they give you plenty of tartar sauce. However my friend got a McDouble and it looked so good I'm going to try it next time. And it's only 2.99 which is great!
  • YY
    yaser
    Oct 6, 2026
    1.0
    So bad never go found something crawling in my food
  • EM
    Eduardo Montenegro
    Sep 30, 2026
    1.0
    Rude people with bad attitude this please is suck. Never come back again
  • MC
    mars crain
    Aug 29, 2026
    5.0
    Really nice location, the manager Jorge is hands on with helping the other employees as well polite and professional.

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

This information is certified by McDonald's and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified October 11, 2026Yext Knowledge Graph
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