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Sonic · San Marcos, CA

Sonic – Grand Avenue

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1215 GRAND AVENUE
San Marcos, CA 92078
Address
1215 Grand Avenue, San Marcos, CA 92078
Opening hours
Monday – Friday9 AM–12 AM
Saturday – Sunday12 AM–1 AM, 9 AM–12 AM
Hours may differ on public holidays.
Website
locations.sonicdrivein.com/ca/sanmarcos/1215-grand-avenue.html
Coordinates
33.142079, -117.190260

This listing is based on OpenStreetMap data (updated 2026-10-06). Something wrong? Fix it on OpenStreetMap or let us know.

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Frequently asked questions

Where is Sonic – Grand Avenue?

Sonic – Grand Avenue is located at 1215 Grand Avenue, San Marcos, CA 92078. Use “Get directions” to start a route from where you are.

What are the opening hours of Sonic – Grand Avenue?

Recorded opening hours: Monday – Friday 9 AM–12 AM; Saturday – Sunday 12 AM–1 AM, 9 AM–12 AM. Hours may differ on holidays.