The Social Security Directory
Independent guide built from public SSA data. Not affiliated with the Social Security Administration. Apply, appeal and check your case only on ssa.gov.

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Social Security field office · code 267

New Castle, DE Social Security Office

The Social Security office in New Castle is at 920 W Basin Road, Suite 200, New Castle, DE 19720. Phone: (866) 667-7221. Hours: Monday 9:00 AM - 4:00 PM; Tuesday 10:00 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. If you appeal a disability decision, your hearing goes to the Dover hearing office (about 8.1 months on average).

Address, phone and office hours

Address920 W Basin Road, Suite 200
New Castle, DE 19720
Phone(866) 667-7221
Fax(833) 912-2300
Monday9:00 AM - 4:00 PM
Tuesday10:00 AM - 4:00 PM
Wednesday9:00 AM - 4:00 PM
Thursday9:00 AM - 4:00 PM
Friday9:00 AM - 4:00 PM
Saturday–SundayClosed
SSA office code267

Address, phone and hours from SSA's official field office file. Offices close on federal holidays.

Appealing a disability decision from the New Castle office

SSA lists the New Castle field office among the offices served by the Dover Hearing Office. That is where an administrative law judge will hear your case if your claim is denied at reconsideration.

Hearing officeDover, DE(877) 405-3671
Average processing time8.1 mo247 days · national 8.6 mo
Approval rate at hearings59%FY 2026 · national 58%

Before the hearing, the medical decision is made by Disability Determination Services. Read how to appeal a denial (60-day deadline) and what happens at the hearing.

What you can do at this office

  • Apply for retirement, disability (SSDI), SSI, survivors and spouse benefits. Social Security card applications too.
  • Replace a Social Security card or update your name.
  • Request a reconsideration or a hearing if your claim was denied (forms).
  • Report changes that affect your benefits and get benefit verification letters.

Many of these services can be done online at ssa.gov or by calling 1-800-772-1213. See how to schedule an appointment.

Frequently asked questions

What is the phone number of the New Castle Social Security office?

The New Castle, DE Social Security office phone number is (866) 667-7221 and its fax is (833) 912-2300. SSA's national line is 1-800-772-1213.

What are the hours of the New Castle Social Security office?

Monday 9:00 AM - 4:00 PM; Tuesday 10:00 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, according to SSA. It is closed on weekends and federal holidays.

Where is the Social Security office in New Castle?

920 W Basin Road, Suite 200, New Castle, DE 19720.

Where are disability appeal hearings held for the New Castle office?

SSA lists the New Castle field office among those served by the Dover Hearing Office (Dover, DE). Its average processing time is about 8.1 months.

Do I need an appointment?

SSA says that if you need in-person help, you must make an appointment to visit a local office. Call the office or 1-800-772-1213 (8:00 a.m. to 7:00 p.m. local time, Monday to Friday). Many services are also available online at ssa.gov.