09/23/2026
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Sonic Drive-In
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Sonic Drive-In is a popular fast food and American restaurant located on Grand Avenue in San Marcos, CA. Established back in 1953, this retro-inspired eatery serves up made-to-order meals and more than 1.3 million drink combinations. Whether you're stopping by for dinner or lunch, Sonic Drive-In promises a fun and unique drive-in dining experience that you won't soon forget.
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Address
1215 Grand Avenue
San Marcos, CA
92078
To get to Grand Avenue in San Marcos, there are a few transportation options available. If you plan on using public transport, you can take the bus and get off at the stop closest to Grand Avenue. Alternatively, if you prefer driving, you can park your car at one of the nearby public parking lots or structures.
If you are driving from downtown San Marcos, take South Pacific Street and continue straight until you reach Grand Avenue. Once you arrive, look for parking available on the street or in one of the nearby parking lots.
If you are taking public transport from other parts of San Marcos or neighboring cities, be sure to check your local transit schedule and identify which buses will get you closest to Grand Avenue.
Whether by driving or taking public transport, it should be easy to find Sonic Drive-In once you arrive on Grand Avenue. Just keep an eye out for its recognizable signage and bright colors.
Opening Hours
| Monday | 10am - 12am |
| Tuesday | 10am - 12am |
| Wednesday | 10am - 12am |
| Thursday | 10am - 12am |
| Friday | 10am - 1am |
| Saturday | 9am - 1am |
| Sunday | 9am - 12am |
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What people say
Sonic Drive-In on Grand Avenue in San Marcos is a must-visit American restaurant for anyone who loves fast food with a retro twist. Since opening its doors in 1953, Sonic Drive-In has been serving up made-to-order food and over 1.3 million drink combinations to satisfied customers. The drive-in dining experience is unique and adds to the overall charm of the restaurant.
One of the standout features of Sonic Drive-In is their extensive menu, which includes specialties for both lunch and dinner. Their burgers are juicy and flavorful, while their hot dogs are perfectly grilled and topped with all the classic fixings. And let's not forget about their famous tots - crispy on the outside and soft on the inside, they're the perfect side dish to any meal.
But what really sets Sonic Drive-In apart from other fast food restaurants is their drink selection. With over 1.3 million drink combinations, there's something for everyone - from classic sodas to slushies to milkshakes. And if you're feeling adventurous, try one of their signature drinks like the strawberry shortcake snowball slush float.
In addition to great food and drinks, Sonic Drive-In also offers fun summer merchandise that will make your visit even more memorable. From Cherry Limeade pool floaties to cute beach towels, there's something for every fan of this iconic restaurant.
Overall, Sonic Drive-In on Grand Avenue in San Marcos is a fantastic American restaurant that offers delicious food, unique drive-in dining experience, and an extensive drink selection that will keep you coming back for more.