SSA Field Office · Office Code 967
The San Mateo Social Security Office is a Social Security field office at 800 South Claremont St, Suite 101, San Mateo, CA 94402, phone (866) 726-8193. SSA lists its hours as Monday to Friday, 9:00 AM to 4:00 PM. Appeals from people this office serves are heard at the San Francisco, CA Hearing Office in San Francisco, CA.
800 South Claremont St, Suite 101
San Mateo, CA 94402
Call (866) 726-8193 for the San Mateo Social Security OfficeDirections to the San Mateo Social Security Office
Fax: (833) 950-2108
From SSA's office data (updated March 9, 2026), checked against SSA's Office Locator on October 1, 2026. Closed on federal holidays.
Many tasks don't need this office. With a my Social Security account you can often request a replacement card, change your address or get a benefit letter.
Call (866) 726-8193 or SSA at 1-800-772-1213 (TTY 1-800-325-0778), Monday to Friday, 8 a.m. to 7 p.m. local time.
Make an appointment first. How to make a Social Security appointment.
Not sure which? Find out if your task needs an office visit.
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SSA's Office of Hearings Operations lists the San Francisco, CA Hearing Office as the hearing office for people the San Mateo office serves. If you ask for a hearing after a denied disability or benefits claim, an administrative law judge from this office handles it.
You usually request a hearing online or through your field office, not by visiting the hearing office. How an appeal reaches a hearing. Source: SSA Hearing Office Locator.
| Office | Distance | Phone | Monday hours |
|---|---|---|---|
| San Mateo (this office) | (866) 726-8193 | 9:00 AM to 4:00 PM | |
| Redwood City Social Security Office, Redwood City, CA | 7.4 mi | (888) 860-5582 | 9:00 AM to 4:00 PM |
| Daly City Social Security Office, Daly City, CA | 11 mi | (888) 748-7702 | 9:00 AM to 4:00 PM |
| Hayward Social Security Office, Hayward, CA | 13 mi | (866) 964-5054 | 9:00 AM to 4:00 PM |
| San Leandro Social Security Office, San Leandro, CA | 14 mi | (866) 331-2181 | 9:00 AM to 4:00 PM |
| Sf Mission Social Security Office, San Francisco, CA | 15 mi | (866) 755-6323 | 9:00 AM to 4:00 PM |
Straight-line distance between office addresses (U.S. Census Bureau geocoder). Blank cells are details SSA doesn't list.
940029401094018940199403094037940389406694401944029440394404
From SSA's Office Locator, looked up by ZIP code on October 1, 2026. How SSA assigns offices by ZIP code.
Every Social Security office in California · Offices in and near San Mateo
If this office has closed or moved, see what to do when an office closes or moves. Confirm details with SSA's Office Locator and office closings page before you go.
Monday to Friday, 9:00 AM to 4:00 PM, according to SSA's office data (updated March 9, 2026). It's closed on weekends and federal holidays.
SSA asks people to make an appointment before visiting an office. You can schedule online or by calling (866) 726-8193 or SSA's national number, 1-800-772-1213 (TTY 1-800-325-0778). See how to make an appointment.
SSA's Office of Hearings Operations lists the San Francisco, CA Hearing Office as serving the San Mateo field office. It's at Equity Building, 16th Floor, 301 Howard Street, San Francisco, CA 94105, phone (866) 770-1221 Ext. 19111. You usually ask for a hearing through your field office or online, not at the hearing office.
SSA assigns 12 ZIP codes to this office: 94002, 94010, 94018, 94019, 94030, 94037, 94038, 94066, 94401, 94402, 94403 and 94404. If yours is listed, this is your office.
The Redwood City Social Security Office in Redwood City, CA, about 7.4 mi away ((888) 860-5582).
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.