The Social Security Directory
Independent guide built from public SSA data. Not affiliated with the Social Security Administration. Apply, appeal and check your case only on ssa.gov.

Home › California › San Marcos › 367 Via Vera Cruz

Social Security field office · code 931

San Marcos, CA Social Security Office

The Social Security office in San Marcos is at 367 Via Vera Cruz, San Marcos, CA 92078. Phone: (866) 614-4769. Hours: Monday to Friday, 9:00 AM - 4:00 PM. If you appeal a disability decision, your hearing goes to the San Diego hearing office (about 9.9 months on average).

Address, phone and office hours

Address367 Via Vera Cruz
San Marcos, CA 92078
Phone(866) 614-4769
Fax(833) 950-3691
Monday9:00 AM - 4:00 PM
Tuesday9:00 AM - 4:00 PM
Wednesday9:00 AM - 4:00 PM
Thursday9:00 AM - 4:00 PM
Friday9:00 AM - 4:00 PM
Saturday–SundayClosed
SSA office code931

Address, phone and hours from SSA's official field office file. Offices close on federal holidays.

Appealing a disability decision from the San Marcos office

SSA lists the San Marcos field office among the offices served by the San Diego Hearing Office. That is where an administrative law judge will hear your case if your claim is denied at reconsideration.

Hearing officeSan Diego, CA(866) 331-2294
Average processing time9.9 mo300 days · national 8.6 mo
Approval rate at hearings58%FY 2026 · national 58%

Before the hearing, the medical decision is made by Disability Determination Service Division. Read how to appeal a denial (60-day deadline) and what happens at the hearing.

What you can do at this office

  • Apply for retirement, disability (SSDI), SSI, survivors and spouse benefits. Social Security card applications too.
  • Replace a Social Security card or update your name.
  • Request a reconsideration or a hearing if your claim was denied (forms).
  • Report changes that affect your benefits and get benefit verification letters.

Many of these services can be done online at ssa.gov or by calling 1-800-772-1213. See how to schedule an appointment.

Frequently asked questions

What is the phone number of the San Marcos Social Security office?

The San Marcos, CA Social Security office phone number is (866) 614-4769 and its fax is (833) 950-3691. SSA's national line is 1-800-772-1213.

What are the hours of the San Marcos Social Security office?

Monday to Friday, 9:00 AM - 4:00 PM, according to SSA. It is closed on weekends and federal holidays.

Where is the Social Security office in San Marcos?

367 Via Vera Cruz, San Marcos, CA 92078.

Where are disability appeal hearings held for the San Marcos office?

SSA lists the San Marcos field office among those served by the San Diego Hearing Office (San Diego, CA). Its average processing time is about 9.9 months.

Do I need an appointment?

SSA says that if you need in-person help, you must make an appointment to visit a local office. Call the office or 1-800-772-1213 (8:00 a.m. to 7:00 p.m. local time, Monday to Friday). Many services are also available online at ssa.gov.