Social Security Office — Mount Prospect, IL (Mount Prospect Il)

📞 Office phone: (866) 931-8350

National helpline (for most questions): 1-800-772-1213

Office hours

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

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