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Social Security Office — Ontario, CA (Ontario Ca)
✓ Hours and phone checked against official Social Security Administration data (updated March 9, 2026)
1100 E Holt Blvd
Ontario, CA 91761
Ontario, CA 91761
📞 Office phone: (866) 331-2216
National helpline (for most questions): 1-800-772-1213
Get directions Call this officeOffice hours
| Day | Opens | Closes |
|---|---|---|
| Monday | 9:00 AM | 4:00 PM |
| Tuesday | 9:00 AM | 4:00 PM |
| Wednesday | 9:00 AM | 4:00 PM |
| Thursday | 9:00 AM | 4:00 PM |
| Friday | 9:00 AM | 4:00 PM |
| Saturday – Sunday | Closed | |
Also closed on federal holidays. Lines are usually longest on Mondays and in the first week of the month; arriving well before closing is a good idea.
Before you go
- Appointments: many services now need one. Call the office or the national number first — it can save you a wasted trip.
- Bring photo ID (driver's license or passport) to every visit.
- Replacement card: bring an unexpired photo ID and proof of citizenship (birth certificate or passport). Originals, not photocopies.
- Applying for benefits: bring your birth certificate and recent pay stubs or W-2s if you have them.
- Skip the trip if you can: benefit letters, address changes, and card replacement (in most states) can be done free at ssa.gov.
More help: What to bring · Do you need an appointment? · Replacing a lost card
Other offices near Ontario
- Pomona Valley Ca, CA — 2130 N Garey Ave, Pomona, CA 91767 · (888) 808-5486
- Glendora Ca, CA — 1165 E Route 66, Glendora, CA 91740 · (866) 964-6045
- West Covina Ca, CA — Ste 201, 501 S Vincent Ave, West Covina, CA 91790 · (866) 964-0162
- El Monte Ca, CA — Social Security Administration, , 9351 Telstar Ave., El Monte, CA 91731 · (866) 931-0340
See something wrong on this page? Email contact@findssoffice.com and we'll check it against the official data and fix it.