Whataburger

4.2
2632 reviews
Whataburger Pole Sign
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Business Details

4040 S INTERSTATE 35, SAN MARCOS, TX
78666, United States
(512) 754-7375
http://www.whataburger.com/
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About

Fast Food RestaurantBurger JointChicken RestaurantBreakfast RestaurantTake Out RestaurantAmerican Restaurant
Since 1950, Whataburger has proudly served a bigger, better burger. It all started when a young entrepreneur named Harmon Dobson had a bold idea: to serve a burger so big that it took two hands to hold, and so good that after a single bite customers couldn't help but exclaim, “What a burger!” He named his humble burger stand in Corpus Christi, Texas, “Whataburger.” Over six decades later, we're still family owned and operated. Each and every Whataburger® is still made to order. We still use 100% pure beef and serve it on a big, toasted five-inch bun. And now, as we proudly serve burgers, chicken, salads and breakfast at more than 800 Whataburger locations across the country, that first burger stand is still close to our hearts.

Details

  • Dine-inAvailable
  • DeliveryAvailable
  • TakeoutAvailable
  • Credit cardAvailable

Location

Whataburger
4040 S INTERSTATE 35, SAN MARCOS, TX
78666, United States

Hours

Reviews

4.2
2,594 reviews
5 stars
1,531
4 stars
557
3 stars
217
2 stars
105
1 star
184

What are people saying?

AI-generated from recent customer reviews

Food Quality

Many customers praised the food as delicious and fresh, though some reported issues with cold or stale items.

Service Issues

Numerous reviews highlighted slow service, order inaccuracies, and unprofessional behavior from staff.

Cleanliness

Feedback was mixed; while some noted cleanliness, others reported unsanitary conditions in the bathrooms and dining area.

Customer Experience

Several customers appreciated friendly staff and positive interactions, but many expressed frustration with order mistakes and long wait times.

Management

Some reviews mentioned effective management and staff, while others criticized management for not addressing service and cleanliness issues.
  • MB
    Mike B
    Nov 14, 2025
    2.0
    Be nice to get what you paid for lol
  • TC
    Toeknee “The Italian Stallion” Castillo
    Nov 9, 2025
    5.0
    Mamma Mia! It was my first time here and the clerk Pricila made me feel welcomed and assisted me perfectly through my order!! Love this place !
  • JB
    joel buckmiller
    Nov 2, 2025
    1.0
    If I could give this place a 0 star review I would, I’ve now went to this location 2 times on 2 days and I’ve not gotten the main item I wanted. I don’t understand why the bag is sealed so it’s inconvenient for me to check my order accuracy, and then I don’t get my item.
  • SD
    Summer Duskan
    Oct 24, 2025
    3.0
    Usually this location is ok at best.. tonight they left out my fries. Super sad I didn't notice until I got home.
  • AH
    Andrew Hodges
    Oct 18, 2025
    4.0
    Decent whataburger location on a busy highway. Place was clean, staff was friendly and order was cooked well so no complaints here.
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Frequently Asked Questions About Whataburger

What are the operating hours for Whataburger in San Marcos, TX?

Whataburger in San Marcos is open 24 hours every day of the week.

Does Whataburger offer curbside pickup and delivery services?

Yes, Whataburger provides both curbside pickup and delivery services for customer convenience.