California · Checked Against SSA's Locator October 1, 2026
SSA assigns Belmont, CA's ZIP code, 94002, to the San Mateo Social Security Office at 800 South Claremont St, Suite 101, San Mateo, about 3.6 miles away, phone (866) 726-8193, open Monday to Friday, 9:00 AM to 4:00 PM.
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
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
1718 Broadway St
Redwood City, CA 94063
Call (888) 860-5582 for the Redwood City Social Security OfficeDirections to the Redwood City Social Security Office
Fax: (833) 571-0638
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
701 N Shoreline Blvd, 1st Floor
Mountain View, CA 94043
Call (877) 319-0161 for the Mountain View Social Security OfficeDirections to the Mountain View Social Security Office
Fax: (833) 950-3371
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
24301 Southland Dr, Suite 500
Hayward, CA 94545
Call (866) 964-5054 for the Hayward Social Security OfficeDirections to the Hayward Social Security Office
Fax: (833) 950-2734
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
355 Gellert Blvd, Suite 201
Daly City, CA 94015
Call (888) 748-7702 for the Daly City Social Security OfficeDirections to the Daly City Social Security Office
Fax: (833) 950-3657
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
320 Davis St
San Leandro, CA 94577
Call (866) 331-2181 for the San Leandro Social Security OfficeDirections to the San Leandro Social Security Office
Fax: (833) 902-2606
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 9:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
Straight-line distance from the center of Belmont (U.S. Census Gazetteer) to each office's address (U.S. Census Bureau geocoder). Office hours and phone numbers from SSA's office data, checked against SSA's Office Locator on October 1, 2026; confirm with SSA's Office Locator before you go.
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SSA assigns Belmont's ZIP code, 94002, to the San Mateo Social Security Office in San Mateo. SSA assigns offices by ZIP code, so the office to use is the one listed for your ZIP.
| ZIP code | Office SSA assigns | Distance |
|---|---|---|
| 94002 | San Mateo Social Security Office for ZIP code 94002 | 3.6 miles |
ZIP code 94002 goes to the San Mateo Social Security Office, 800 South Claremont St, Suite 101, San Mateo.
Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps Belmont (U.S. Census Bureau, 2020 ZIP Code Tabulation Areas). Distance is straight-line, from the center of the ZIP code to the office.
Where people in nearby communities go, and how far it is. Each area's office is the one SSA assigns to its ZIP codes.
Pacifica is about 12 miles northwest of central Belmont. SSA assigns its ZIP code, 94044, to the Daly City Social Security Office at 355 Gellert Blvd, Suite 201, Daly City, open Monday to Friday, 9:00 AM to 4:00 PM.
San Mateo is about 3.3 miles north of central Belmont. SSA assigns its ZIP codes (94401, 94402 and 94403) to the San Mateo Social Security Office at 800 South Claremont St, Suite 101, San Mateo, open Monday to Friday, 9:00 AM to 4:00 PM.
Palo Alto is about 12 miles southeast of central Belmont. Its ZIP codes are split between offices: 94022, 94301, 94304 and 94306 go to the Mountain View Social Security Office in Mountain View; 94303 goes to the Redwood City Social Security Office in Redwood City.
Menlo Park is about 8.4 miles east of central Belmont. SSA assigns its ZIP code, 94025, to the Redwood City Social Security Office at 1718 Broadway St, Redwood City, open Monday to Friday, 9:00 AM to 4:00 PM.
Stanford is about 9.2 miles southeast of central Belmont. SSA assigns its ZIP code, 94305, to the Mountain View Social Security Office at 701 N Shoreline Blvd, 1st Floor, Mountain View, open Monday to Friday, 9:00 AM to 4:00 PM.
Redwood City is about 4.4 miles east of central Belmont. SSA assigns its ZIP codes (94061, 94063 and 94065) to the Redwood City Social Security Office at 1718 Broadway St, Redwood City, open Monday to Friday, 9:00 AM to 4:00 PM.
San Carlos is about 1.8 miles southeast of central Belmont. SSA assigns its ZIP code, 94070, to the Redwood City Social Security Office at 1718 Broadway St, Redwood City, open Monday to Friday, 9:00 AM to 4:00 PM.
Foster City is about 4.2 miles northeast of central Belmont. SSA assigns its ZIP code, 94404, to the San Mateo Social Security Office at 800 South Claremont St, Suite 101, San Mateo, open Monday to Friday, 9:00 AM to 4:00 PM.
Hillsborough is about 4.6 miles northwest of central Belmont. SSA assigns its ZIP code, 94010, to the San Mateo Social Security Office at 800 South Claremont St, Suite 101, San Mateo, open Monday to Friday, 9:00 AM to 4:00 PM.
Burlingame is about 6.4 miles northwest of central Belmont. SSA assigns its ZIP code, 94010, to the San Mateo Social Security Office at 800 South Claremont St, Suite 101, San Mateo, open Monday to Friday, 9:00 AM to 4:00 PM.
SSA asks you to make an appointment before you visit an office. You can schedule one online on SSA's appointment page by answering a few questions; the appointment may be by phone or in person, and you can change or cancel it from the confirmation email or text.
To book by phone, call the San Mateo Social Security Office at (866) 726-8193, or SSA's national number, 1-800-772-1213 (TTY 1-800-325-0778), Monday through Friday, 8 a.m. to 7 p.m. local time. Help is available in English, Spanish and other languages.
See office hours and appointments for the best times to call and visit.
You can often replace a card, update your address or get a benefit letter online with a my Social Security account. If you need to go in, check what to bring.
There isn't an office in Belmont, CA itself. The closest is the San Mateo Social Security Office, 800 South Claremont St, Suite 101, San Mateo, CA 94402, about 3.6 miles away.
SSA assigns Belmont's ZIP code, 94002, to the San Mateo Social Security Office in San Mateo. SSA assigns offices by ZIP code, and the assigned office isn't always the closest one. Look up your ZIP code in the table on this page or in SSA's Office Locator.
The San Mateo Social Security Office is open Monday to Friday, 9:00 AM to 4:00 PM, according to SSA's office data (checked against SSA's Office Locator on October 1, 2026). Offices close on weekends and federal holidays.
SSA lists (866) 726-8193 for the San Mateo Social Security Office. SSA's national number is 1-800-772-1213.
Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call the San Mateo Social Security Office at (866) 726-8193 or SSA at 1-800-772-1213 (TTY 1-800-325-0778), Monday through Friday, 8 a.m. to 7 p.m. local time. SSA asks you to make an appointment before visiting an office.
Every Social Security office in California
Independent site, not affiliated with the Social Security Administration. Office addresses, phone numbers and hours come from SSA's public office data. To apply for benefits or manage your record, go to SSA directly at ssa.gov.