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 › Lancaster › 42225 10th St W

Social Security field office · code 059

Lancaster, CA Social Security Office

The Social Security office in Lancaster is at 42225 10th St W, Ste A, Lancaster, CA 93534. Phone: (866) 964-1725. Hours: Monday to Friday, 9:00 AM - 4:00 PM. If you appeal a disability decision, your hearing goes to the Los Angeles (West) hearing office (about 9.5 months on average).

Address, phone and office hours

Address42225 10th St W, Ste A
Lancaster, CA 93534
Phone(866) 964-1725
Fax(833) 950-2432
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 code059

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

Appealing a disability decision from the Lancaster office

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

Hearing officeLos Angeles (West), CA(866) 748-2089
Average processing time9.5 mo288 days · national 8.6 mo
Approval rate at hearings62%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 Lancaster Social Security office?

The Lancaster, CA Social Security office phone number is (866) 964-1725 and its fax is (833) 950-2432. SSA's national line is 1-800-772-1213.

What are the hours of the Lancaster 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 Lancaster?

42225 10th St W, Ste A, Lancaster, CA 93534.

Where are disability appeal hearings held for the Lancaster office?

SSA lists the Lancaster field office among those served by the Los Angeles West Hearing Office (Los Angeles (West), CA). Its average processing time is about 9.5 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.