California · Checked Against SSA's Locator October 1, 2026

Social Security Offices Near San Dimas, CA

Where Is the Social Security Office Nearest San Dimas, CA?

SSA assigns San Dimas, CA's ZIP code, 91773, to the Glendora Social Security Office at 1165 E Route 66, Glendora, about 2.5 miles away, phone (866) 964-6045, open Monday to Friday, 9:00 AM to 4:00 PM.

Reviewed by ·

Closest Social Security Offices to San Dimas, CA

Straight-line distance from the center of San Dimas (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.

Map of Social Security Offices Near San Dimas

Loading map…

Social Security office

Which Social Security Office Serves Your ZIP Code in San Dimas?

SSA assigns San Dimas's ZIP code, 91773, to the Glendora Social Security Office in Glendora. SSA assigns offices by ZIP code, so the office to use is the one listed for your ZIP.

Social Security office assigned to each ZIP code in San Dimas
ZIP codeOffice SSA assignsDistance
91773Glendora Social Security Office for ZIP code 917732.5 miles

ZIP code 91773 goes to the Glendora Social Security Office, 1165 E Route 66, Glendora.

Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps San Dimas (U.S. Census Bureau, 2020 ZIP Code Tabulation Areas). Distance is straight-line, from the center of the ZIP code to the office.

Social Security Offices Near Areas Around San Dimas

Where people in nearby communities go, and how far it is. Each area's office is the one SSA assigns to its ZIP codes.

Social Security Office Near Diamond Bar

Diamond Bar is about 7.4 miles south of central San Dimas. SSA assigns its ZIP code, 91765, to the Pomona Valley Social Security Office at 2130 N Garey Ave, Pomona, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Diamond Bar

Social Security Office Near Upland

Upland is about 8.5 miles east of central San Dimas. SSA assigns its ZIP codes (91784 and 91786) to the Ontario Social Security Office at 1100 E Holt Blvd, Ontario, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Upland

Social Security Office Near Montclair

Montclair is about 6.8 miles east of central San Dimas. SSA assigns its ZIP code, 91763, to the Ontario Social Security Office at 1100 E Holt Blvd, Ontario, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Montclair

Social Security Office Near Claremont

Claremont is about 5.5 miles east of central San Dimas. SSA assigns its ZIP code, 91711, to the Pomona Valley Social Security Office at 2130 N Garey Ave, Pomona, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Claremont

Social Security Office Near Walnut

Walnut is about 5.6 miles southwest of central San Dimas. SSA assigns its ZIP code, 91789, to the Pomona Valley Social Security Office at 2130 N Garey Ave, Pomona, open Monday to Friday, 9:00 AM to 4:00 PM. The West Covina Social Security Office is closer to central Walnut (about 4.6 miles, against 6.9 miles), but it isn't the office SSA assigns.

More on Social Security offices near Walnut

Social Security Office Near Monrovia

Monrovia is about 11 miles west of central San Dimas. SSA assigns its ZIP code, 91016, to the Glendora Social Security Office at 1165 E Route 66, Glendora, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Monrovia

Social Security Office Near Pomona

Pomona is about 4.4 miles southeast of central San Dimas. SSA assigns its ZIP codes (91766, 91767 and 91768) to the Pomona Valley Social Security Office at 2130 N Garey Ave, Pomona, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Pomona

Social Security Office Near Covina

Covina is about 4.4 miles west of central San Dimas. SSA assigns its ZIP codes (91722, 91723 and 91724) to the Glendora Social Security Office at 1165 E Route 66, Glendora, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Covina

Social Security Office Near West Covina

West Covina is about 6.8 miles southwest of central San Dimas. Its ZIP codes are split between offices: 91790 and 91792 go to the West Covina Social Security Office in West Covina; 91791 goes to the Glendora Social Security Office in Glendora.

More on Social Security offices near West Covina

Social Security Office Near Duarte

Duarte is about 8.9 miles northwest of central San Dimas. SSA assigns its ZIP code, 91010, to the Glendora Social Security Office at 1165 E Route 66, Glendora, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Duarte

How to Get an Appointment at the Glendora Social Security Office

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 Glendora Social Security Office at (866) 964-6045, 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.

Can You Skip the Trip?

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.

Social Security Offices Near Other California Cities

Frequently Asked Questions

Where Is the Social Security Office in San Dimas?

There isn't an office in San Dimas, CA itself. The closest is the Glendora Social Security Office, 1165 E Route 66, Glendora, CA 91740, about 2.5 miles away.

Which Social Security Office Serves My ZIP Code in San Dimas?

SSA assigns San Dimas's ZIP code, 91773, to the Glendora Social Security Office in Glendora. 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.

What Are Social Security Office Hours Near San Dimas?

The Glendora 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.

What Is the Phone Number for the Social Security Office Near San Dimas?

SSA lists (866) 964-6045 for the Glendora Social Security Office. SSA's national number is 1-800-772-1213.

How Do I Make an Appointment at the Social Security Office Near San Dimas?

Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call the Glendora Social Security Office at (866) 964-6045 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

Sources

  1. Social Security Administration, field office and resident station data (updated March 9, 2026)
  2. SSA Office Locator (offices and ZIP code assignments, checked October 1, 2026)
  3. U.S. Census Bureau: geocoder, 2023 Gazetteer files and 2020 ZIP Code Tabulation Area relationship files
  4. SSA: Make an appointment
  5. SSA: Contact by phone
  6. SSA: Office locator guidance (appointments and Card Centers)

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.