San Marcos Social Security Office
367 Via Vera Cruz
San Marcos, CA 92078
Call (866) 614-4769 for the San Marcos Social Security OfficeDirections to the San Marcos Social Security Office
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4p - Sat–SunClosed
California · Office Details From SSA, Updated March 9, 2026
There is one Social Security office in San Marcos, CA: the San Marcos Social Security Office ((866) 614-4769).
367 Via Vera Cruz
San Marcos, CA 92078
Call (866) 614-4769 for the San Marcos Social Security OfficeDirections to the San Marcos Social Security Office
2160 S El Camino Real
Oceanside, CA 92054 · about 9.9 mi
Call (855) 287-4793 for the Oceanside Social Security OfficeDirections to the Oceanside Social Security Office
8505 Aero Dr
San Diego, CA 92123 · about 22 mi
Call (866) 331-6397 for the Kearny Mesa Social Security OfficeDirections to the Kearny Mesa Social Security Office
846 Arnele Ave
El Cajon, CA 92020 · about 25 mi
Call (866) 964-0012 for the El Cajon Social Security OfficeDirections to the El Cajon Social Security Office
7961 University Ave
La Mesa, CA 91942 · about 27 mi
Call (877) 405-1445 for the La Mesa Social Security OfficeDirections to the La Mesa Social Security Office
Straight-line distance from the center of San Marcos.
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Appeals from these offices are heard at San Diego, CA Hearing Office. San Diego, CA Hearing Office
Every Social Security office in California · All hearing offices · Find your office by ZIP code
Independent site, not affiliated with the Social Security Administration. Office and hearing office details come from SSA's public data and locators. To apply for benefits, appeal or manage your record, go to SSA directly at ssa.gov.