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

Social Security Offices Near Diamond Bar, CA

Where Is the Social Security Office Nearest Diamond Bar, CA?

SSA assigns Diamond Bar, CA's ZIP code, 91765, to the Pomona Valley Social Security Office at 2130 N Garey Ave, Pomona, about 7.0 miles away, phone (888) 808-5486, open Monday to Friday, 9:00 AM to 4:00 PM. The Brea Social Security Office in Brea is closer (about 6.6 miles), but it isn't the office SSA assigns.

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Closest Social Security Offices to Diamond Bar, CA

Straight-line distance from the center of Diamond Bar (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 Diamond Bar

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Which Social Security Office Serves Your ZIP Code in Diamond Bar?

SSA assigns Diamond Bar's ZIP code, 91765, to the Pomona Valley Social Security Office in Pomona. For one ZIP code, the assigned office isn't the closest one, so check your ZIP before you go.

Social Security office assigned to each ZIP code in Diamond Bar
ZIP codeOffice SSA assignsDistance
91765Pomona Valley Social Security Office for ZIP code 91765Closest: Brea Social Security Office, 5.7 miles7.8 miles

ZIP code 91765 goes to the Pomona Valley Social Security Office, 2130 N Garey Ave, Pomona.

Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps Diamond Bar (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 Diamond Bar

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 Fullerton

Fullerton is about 10 miles southwest of central Diamond Bar. SSA assigns its ZIP codes (92831, 92832, 92833 and 92835) to the Brea Social Security Office at 3230 E Imperial Hwy, Suite 150 1st Floor, Brea, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Fullerton

Social Security Office Near Chino Hills

Chino Hills is about 6.6 miles southeast of central Diamond Bar. SSA assigns its ZIP code, 91709, to the Ontario Social Security Office at 1100 E Holt Blvd, Ontario, open Monday to Friday, 9:00 AM to 4:00 PM. The Brea Social Security Office is closer to central Chino Hills (about 7.7 miles, against 9.9 miles), but it isn't the office SSA assigns.

More on Social Security offices near Chino Hills

Social Security Office Near Chino

Chino is about 9.3 miles east of central Diamond Bar. SSA assigns its ZIP codes (91708 and 91710) 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 Chino

Social Security Office Near La Habra

La Habra is about 9.2 miles southwest of central Diamond Bar. SSA assigns its ZIP code, 90631, to the Brea Social Security Office at 3230 E Imperial Hwy, Suite 150 1st Floor, Brea, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near La Habra

Social Security Office Near Yorba Linda

Yorba Linda is about 8.2 miles south of central Diamond Bar. SSA assigns its ZIP codes (92886 and 92887) to the Brea Social Security Office at 3230 E Imperial Hwy, Suite 150 1st Floor, Brea, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Yorba Linda

Social Security Office Near Montclair

Montclair is about 8.4 miles northeast of central Diamond Bar. 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 10 miles northeast of central Diamond Bar. 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 3.3 miles northwest of central Diamond Bar. 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 San Dimas

San Dimas is about 7.4 miles north of central Diamond Bar. SSA assigns its ZIP code, 91773, 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 San Dimas

Social Security Office Near Hacienda Heights

Hacienda Heights is about 8.9 miles west of central Diamond Bar. SSA assigns its ZIP code, 91745, to the West Covina Social Security Office at 501 S Vincent Ave, STE 201, West Covina, open Monday to Friday, 9:00 AM to 4:00 PM. The Whittier Social Security Office is closer to central Hacienda Heights (about 3.9 miles, against 5.6 miles), but it isn't the office SSA assigns.

More on Social Security offices near Hacienda Heights

How to Get an Appointment at the Brea 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 Brea Social Security Office at (866) 593-2757, 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 Diamond Bar?

There isn't an office in Diamond Bar, CA itself. The closest is the Brea Social Security Office, 3230 E Imperial Hwy, Suite 150 1st Floor, Brea, CA 92821, about 6.6 miles away.

Which Social Security Office Serves My ZIP Code in Diamond Bar?

SSA assigns Diamond Bar's ZIP code, 91765, to the Pomona Valley Social Security Office in Pomona. 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 Diamond Bar?

The Brea 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 Diamond Bar?

SSA lists (866) 593-2757 for the Brea Social Security Office. SSA's national number is 1-800-772-1213.

How Do I Make an Appointment at the Social Security Office Near Diamond Bar?

Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call the Brea Social Security Office at (866) 593-2757 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.