About
In-N-Out Burger is a popular fast-food restaurant chain with locations throughout the western United States, including one at 21133 Golden Springs Dr in Diamond Bar, California. The restaurant is known for its simple menu of burgers, fries, and shakes, and its commitment to using high-quality, fresh ingredients.
Restaurant Features
Facilities & Amenities
Restroom
Kid Friendly
Kid High Chair
Wheelchair Access
Parking
- Free Parking Lot
- Free Street Parking
Accepted Payments
- Credit Card
- Apple Pay
- Google Pay
Ratings for In-N-Out Burger
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- Overall Rating
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Reviews for In-N-Out Burger
We only show the 3 most relevant reviews to save you time.
Can't complain about the food. BUT! This is the SLOWEST In n Out I have ever been too! Arrived at 1110am for drive thru. With not a lot of Cars ahead of me, but this location is not beat designed for drive thru. Got my food at 1130. 20 MINUTES during not even a peak time. I would never come back to this location again.
My Cali resident boyfriend convinced me that I HAD to try this place. Burger was great, and I usually don’t like burgers. It’s nice that they offer a burger with lettuce for buns for those who want to avoid the gluten. Got the Neapolitan shake which was alright — I’d recommend getting just one of the flavors instead of all three but that’s just my personal opinion. The fries from this place weren’t so good. It was cold and not really that fried. We got the animal fries ver as well and it wasn’t that good either. My bf said it usually isn’t like this, so maybe it was an off day for them? Otherwise, service was fast and nice.
I don’t eat meat our favorite place is In-N-Out Burger, where we get grilled cheese sandwich with raw onions and chilies, and it is a beautiful meal on the go or sometimes; when you want something different, people are courteous and helpful, and the food is always fresh, and if they ever make a mistake they go an extra mile to make sure that you are satisfied love this place
Menu / Photos








Business Hours
| Sunday: | 10:30 AM - 1:00 AM |
| Monday: | 10:30 AM - 1:00 AM |
| Tuesday: | 10:30 AM - 1:00 AM |
| Wednesday: | 10:30 AM - 1:00 AM |
| Thursday: | 10:30 AM - 1:00 AM |
| Friday: | 10:30 AM - 1:30 AM |
| Saturday: | 10:30 AM - 1:30 AM |
