Fast Food RestaurantAmerican RestaurantHot Dog RestaurantRestaurantBurger Joint
Your nearby Five Guys at 151 S. Las Posas Drive in San Marcos is ready to offer you a classic take on burgers, hot dogs, fries, milkshakes and more! Whether it's using fresh ground beef (there are no freezers in our restaurants), double-cooking our fries in 100 percent peanut oil, hand-preparing fresh ingredients every morning or serving peanuts while you wait, we strive to provide the best experience each and every time you visit. With more than 250,000 ways to customize your burger and 1,000+ milkshake combinations, satisfying your craving is just a click away!
Customers generally enjoy the taste of the burgers and fries, but there are complaints about greasy and messy presentations.
Pricing
Many reviews highlight that the prices are considered high for the quality and portion sizes, leading to dissatisfaction.
Service Issues
There are mixed reviews about service, with some praising friendly staff while others report long wait times and incorrect orders.
Cleanliness
Several customers noted that the cleanliness of the restaurant, particularly the bathrooms, was below expectations.
Consistency
While some customers have had great experiences, others report inconsistencies in food preparation and service quality.
JG
Jordan Giese
Aug 21, 2025
2.0
Food tastes great and I usually don't go to this location but everytime I have, they've destroyed my burger. The picture posted was when my girlfriend and I went and we were the only people in the restaurant, so they weren't rushed, and it looks like they just sloppily threw both of our burgers together. That much ketchup/mustard on both sides of the patty? Why? By the time we started eating after the 4 minute drive back to our home the buns were so soggy from the excessive amount of ketchup, mustard and mayo, we just could not finish them. Also while eating my burger I bit down on something rock hard and now my molar hurts.
SS
SoCal Smith
Aug 17, 2025
2.0
Wow haven't been in here fir awhile...Only three people working, bathroom looked like something at a gas station on the outskirts of Vegas. Floor was covered in peanut shells like a bad country bar. Food was ok, burgers were way overcooked, they had about 15 patties going and with limited staff not getting much attention. Prices have gotten crazy even for California. Family of 4 sharing 1 drink is $75 bucks with no frills and little kids burgers. I see how In-n-out dominates. Won't be back..
HR
Hecktor Ramiirez
Jul 20, 2021
5.0
Amazing portions and the amount of fries = for days!! Lol 😆 really good 👍
Frequently Asked Questions About Five Guys - CLOSED
What is the Five Guys story/How did you guys get your name?
Five Guys began its pursuit to redefine the global burger landscape in 1986 when Jerry and Janie Murrell asked three of their sons whether they wanted to start a business or go to college. Now, three decades after our first location opened in Arlington, Va., Five Guys – a fast-casual restaurant chain named for the Murrells' five sons – serves a classic take on hamburgers, fries and milkshakes in more than 1,700 locations across 24 countries.
You can read more about the story of Five Guys at www.FiveGuys.com!
Does Five Guys offer delivery?
As of June 2024, we have more than 1,800 locations in over 24 countries! Most of our restaurants are in the United States.
How many restaurants does Five Guys have?
As of June 2024, we have more than 1,800 locations in over 24 countries! Most of our restaurants are in the United States.
Does Five Guys offer gluten-free options?
The only products we offer that contain gluten are our buns, hot dogs (Canada only), HP sauce (UK only), and the malt vinegar condiment for our fries. In Canada, our Poutine Gravy condiment also contains gluten. All of our sandwiches, including burgers, hot dogs and the veggie sandwich, are available without a bun via our wrap or bowls.
While our crew members do all they can to avoid it, there is always a risk of cross-contamination. Please review our nutritional, ingredient and allergen chart for the most accurate information.
Is the Five Guys veggie sandwich a veggie patty?
Our veggie sandwich is not a veggie burger, but truthfully, it can be a mix of whatever you'd like. Choose any combination of our condiments and add cheese for an additional cost.
Our standard veggie is a mix of peppers, onions and mushrooms with or without cheese.
What is the best way to reheat leftover fries?
Leftover fries are excellent reheated in the oven (or Air Fryer). According to Chad Murrell, one of the Five Guys, just pop them in a 350-degree oven for about 10-15 minutes.
Also, give those leftover fries a try as hash browns, home fries, or even as the filling in an omelet.
Does Five Guys San Marcos accept reservations?
No, Five Guys San Marcos does not accept reservations.
Is the San Marcos Five Guys location currently open?
The Five Guys at 151 S. Las Posas Drive in San Marcos is currently closed.
What types of meals does Five Guys San Marcos serve?
Five Guys San Marcos serves lunch and dinner meals.
Can I order Five Guys food for delivery in San Marcos?
Five Guys San Marcos offers delivery, but all days are currently marked as closed for delivery.
What payment options are accepted at Five Guys San Marcos?
Five Guys San Marcos accepts American Express, Android Pay, Apple Pay, Cash, Discover, Mastercard, and Visa.
Is Five Guys San Marcos wheelchair accessible and family-friendly?
Yes, the location is wheelchair accessible, has high chairs, wheelchair accessible restrooms, and welcomes children.
How can I customize my burger or milkshake at Five Guys San Marcos?
You can customize your burger in over 250,000 ways and choose from more than 1,000 milkshake combinations.
What nearby places can I visit before or after dining at Five Guys San Marcos?
Nearby, you can visit Sprouts Farmers Market for organic groceries, Massage Envy San Marcos for a relaxing massage, or the Automobile Club of Southern California (AAA) for travel services.
What options are available for pet owners near Five Guys San Marcos?
Pet owners can visit nearby pet stores and services such as Petco, Vetco Total Care Animal Hospital, Vetco Vaccination Clinic, and Just Food For Dogs.
Are there any nearby mobile phone stores or services around Five Guys San Marcos?
Yes, nearby mobile phone stores and services include Verizon, Victra — Verizon Authorized Retailer, and Repair Lounge for electronics and computer repair.