SSA Field Office · Office Code 267
The Wilmington Social Security Office is a Social Security field office at 920 W Basin Road, Suite 200, New Castle, DE 19720, phone (866) 667-7221. SSA lists its hours as 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. Appeals from people this office serves are heard at the Dover, DE Hearing Office in Dover, DE.
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
From SSA's office data (updated March 9, 2026), checked against SSA's Office Locator on October 1, 2026. Closed on federal holidays.
Many tasks don't need this office. With a my Social Security account you can often request a replacement card, change your address or get a benefit letter.
Call (866) 667-7221 or SSA at 1-800-772-1213 (TTY 1-800-325-0778), Monday to Friday, 8 a.m. to 7 p.m. local time.
Make an appointment first. How to make a Social Security appointment.
Not sure which? Find out if your task needs an office visit.
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SSA's Office of Hearings Operations lists the Dover, DE Hearing Office as the hearing office for people the Wilmington office serves. If you ask for a hearing after a denied disability or benefits claim, an administrative law judge from this office handles it.
You usually request a hearing online or through your field office, not by visiting the hearing office. How an appeal reaches a hearing. Source: SSA Hearing Office Locator.
| Office | Distance | Phone | Monday hours |
|---|---|---|---|
| Wilmington (this office) | (866) 667-7221 | 9:00 AM to 4:00 PM | |
| Elkton Social Security Office, Elkton, MD | 14 mi | (866) 331-2218 | 9:00 AM to 4:00 PM |
| Chester Social Security Office, Chester, PA | 17 mi | (866) 398-1456 | 9:00 AM to 4:00 PM |
| West Chester Social Security Office, West Chester, PA | 19 mi | (888) 306-3216 | 9:00 AM to 4:00 PM |
| Upper Darby Social Security Office, Upper Darby, PA | 25 mi | (866) 964-0780 | 9:00 AM to 4:00 PM |
| Glassboro Social Security Office, Glassboro, NJ | 26 mi | (866) 883-5305 | 9:00 AM to 4:00 PM |
Straight-line distance between office addresses (U.S. Census Bureau geocoder). Blank cells are details SSA doesn't list.
1970119702197031970619707197091971019711197131971619717197201973019731197321973319734197351973619801198021980319804198051980619807198081980919810
From SSA's Office Locator, looked up by ZIP code on October 1, 2026. How SSA assigns offices by ZIP code.
Every Social Security office in Delaware · Offices in and near New Castle
If this office has closed or moved, see what to do when an office closes or moves. Confirm details with SSA's Office Locator and office closings page before you go.
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). It's closed on weekends and federal holidays.
SSA asks people to make an appointment before visiting an office. You can schedule online or by calling (866) 667-7221 or SSA's national number, 1-800-772-1213 (TTY 1-800-325-0778). See how to make an appointment.
SSA's Office of Hearings Operations lists the Dover, DE Hearing Office as serving the Wilmington field office. It's at Blue Hen Corporate Center, 655 S. Bay Road, Suite 3i, Dover, DE 19901, phone (877) 405-3671. You usually ask for a hearing through your field office or online, not at the hearing office.
SSA 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 and 19806 and others listed on this page. If yours is listed, this is your office.
The Elkton Social Security Office in Elkton, MD, about 14 mi away ((866) 331-2218).
Independent site, not affiliated with the Social Security Administration. Office and hearing office details come from SSA's public data and locators. To apply for benefits, appeal or manage your record, go to SSA directly at ssa.gov.