New Castle, DE · Social Security Field Office
920 W Basin Road, Suite 200
New Castle, DE 19720
Call (866) 667-7221 for the Wilmington Social Security OfficeDirections to the Wilmington Social Security Office
Fax: (833) 912-2300
| Monday | 9:00 AM to 4:00 PM |
|---|---|
| Tuesday | 10:00 AM to 4:00 PM |
| Wednesday | 9:00 AM to 4:00 PM |
| Thursday | 9:00 AM to 4:00 PM |
| Friday | 9:00 AM to 4:00 PM |
| Saturday and Sunday | Closed |
From SSA's office data, updated March 9, 2026, and checked against SSA's Office Locator on October 1, 2026. Closed on federal holidays.
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Many Social Security tasks don't need a visit. You can often replace a card, change your address or get a benefit verification letter online through a my Social Security account. If you do need to go in, see what to bring and how appointments work.
Office details come from SSA's office data (updated March 9, 2026). Offices move and hours change, so confirm with SSA's Office Locator and office closings page before you go.
SSA asks you to make an appointment before you visit an office. Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call this office at (866) 667-7221 or SSA at 1-800-772-1213 (TTY 1-800-325-0778), Monday through Friday, 8 a.m. to 7 p.m. local time.
If you only need a new or replacement Social Security card or to update your personal information, SSA directs you to a Card Center where your ZIP code has one.
SSA assigns 29 ZIP codes to this office. If yours is listed, this is the office to use:
1970119702197031970619707197091971019711197131971619717197201973019731197321973319734197351973619801198021980319804198051980619807198081980919810
From SSA's Office Locator, looked up by ZIP code on October 1, 2026.
Straight-line distance between office addresses (U.S. Census Bureau geocoder).
All Social Security offices in Delaware · Social Security offices near New Castle
Mon 9:00 AM-4:00 PM; Tue 10:00 AM-4:00 PM; Wed 9:00 AM-4:00 PM; Thu 9:00 AM-4:00 PM; Fri 9:00 AM-4:00 PM, according to SSA's office data (updated March 9, 2026). Offices are closed on weekends and federal holidays. Check SSA's office closings page before you go.
SSA's Office Locator assigns 29 ZIP codes to this office: 19701, 19702, 19703, 19706, 19707, 19709, 19710, 19711, 19713, 19716, 19717, 19720, 19730, 19731, 19732, 19733, 19734, 19735, 19736, 19801, 19802, 19803, 19804, 19805, 19806, 19807, 19808, 19809 and 19810. SSA assigns offices by ZIP code, so if yours is listed, this is your office.
SSA lists (866) 667-7221 for this office and (833) 912-2300 as its fax number. SSA's national number is 1-800-772-1213.
920 W Basin Road, Suite 200, New Castle, DE 19720.
The Elkton Social Security Office in Elkton, MD is about 14 miles away, phone (866) 331-2218. The next closest is Chester Social Security Office, about 17 miles away.
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.