Delaware · Checked Against SSA's Locator October 1, 2026

Social Security Office in New Castle, DE

Where Is the Social Security Office in New Castle, DE?

The Wilmington Social Security Office is in New Castle, at 920 W Basin Road, Suite 200, open 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. The next closest is the Elkton Social Security Office, about 15 miles away.

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Social Security Offices in New Castle

Other Offices Near New Castle

Straight-line distance from the center of New Castle (U.S. Census Gazetteer) to each office's address (U.S. Census Bureau geocoder). Office hours and phone numbers from SSA's office data, checked against SSA's Office Locator on October 1, 2026; confirm with SSA's Office Locator before you go.

Map of Social Security Offices Near New Castle

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Social Security office

Which Social Security Office Serves Your ZIP Code in New Castle?

SSA assigns New Castle's ZIP code, 19720, to the Wilmington Social Security Office. SSA assigns offices by ZIP code, so the office to use is the one listed for your ZIP.

Social Security office assigned to each ZIP code in New Castle
ZIP codeOffice SSA assignsDistance
19720Wilmington Social Security Office for ZIP code 197203.4 miles

ZIP code 19720 goes to the Wilmington Social Security Office, 920 W Basin Road, Suite 200, New Castle.

Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps New Castle (U.S. Census Bureau, 2020 ZIP Code Tabulation Areas). Distance is straight-line, from the center of the ZIP code to the office.

Social Security Offices Near Areas Around New Castle

Where people in nearby communities go, and how far it is. Each area's office is the one SSA assigns to its ZIP codes.

Social Security Office Near Wilmington

Wilmington is about 4.9 miles north of central New Castle. SSA assigns its ZIP codes (19801, 19802, 19805, 19806 and 19809) to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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.

More on Social Security offices near Wilmington

Social Security Office Near Newark

Newark is about 10 miles west of central New Castle. SSA assigns its ZIP codes (19711, 19713, 19716 and 19717) to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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. The Elkton Social Security Office is closer to central Newark (about 6.5 miles, against 8.5 miles), but it isn't the office SSA assigns.

More on Social Security offices near Newark

Social Security Office Near Elsmere

Elsmere is about 5.0 miles north of central New Castle. SSA assigns its ZIP code, 19805, to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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.

More on Social Security offices near Elsmere

Social Security Office Near Middletown

Middletown is about 18 miles southwest of central New Castle. SSA assigns its ZIP code, 19709, to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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. The Elkton Social Security Office is closer to central Middletown (about 12 miles, against 18 miles), but it isn't the office SSA assigns.

More on Social Security offices near Middletown

Social Security Office Near Bear

Bear is about 7.0 miles southwest of central New Castle. SSA assigns its ZIP codes (19701 and 19702) to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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.

More on Social Security offices near Bear

Social Security Office Near Hockessin

Hockessin is about 9.9 miles northwest of central New Castle. SSA assigns its ZIP codes (19707 and 19736) to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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.

Social Security Office Near Glasgow

Glasgow is about 11 miles southwest of central New Castle. SSA assigns its ZIP codes (19701 and 19702) to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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. The Elkton Social Security Office is closer to central Glasgow (about 4.1 miles, against 10 miles), but it isn't the office SSA assigns.

Social Security Office Near North Star

North Star is about 11 miles northwest of central New Castle. SSA assigns its ZIP code, 19711, to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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.

Social Security Office Near Brookside

Brookside is about 7.5 miles west of central New Castle. SSA assigns its ZIP code, 19713, to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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.

Social Security Office Near Pike Creek Valley

Pike Creek Valley is about 8.1 miles northwest of central New Castle. SSA assigns its ZIP codes (19711 and 19808) to the Wilmington Social Security Office at 920 W Basin Road, Suite 200, New Castle, open 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.

How to Get an Appointment at the Wilmington Social Security Office

SSA asks you to make an appointment before you visit an office. You can schedule one online on SSA's appointment page by answering a few questions; the appointment may be by phone or in person, and you can change or cancel it from the confirmation email or text.

To book by phone, call the Wilmington Social Security Office at (866) 667-7221, or SSA's national number, 1-800-772-1213 (TTY 1-800-325-0778), Monday through Friday, 8 a.m. to 7 p.m. local time. Help is available in English, Spanish and other languages.

See office hours and appointments for the best times to call and visit.

Can You Skip the Trip?

You can often replace a card, update your address or get a benefit letter online with a my Social Security account. If you need to go in, check what to bring.

Social Security Offices Near Other Delaware Cities

Frequently Asked Questions

Where Is the Social Security Office in New Castle?

Wilmington Social Security Office: 920 W Basin Road, Suite 200, New Castle, DE 19720.

Which Social Security Office Serves My ZIP Code in New Castle?

SSA assigns New Castle's ZIP code, 19720, to the Wilmington Social Security Office. SSA assigns offices by ZIP code, and the assigned office isn't always the closest one. Look up your ZIP code in the table on this page or in SSA's Office Locator.

What Are Social Security Office Hours Near New Castle?

The Wilmington Social Security Office is open 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 (checked against SSA's Office Locator on October 1, 2026). Offices close on weekends and federal holidays.

What Is the Phone Number for the Social Security Office Near New Castle?

SSA lists (866) 667-7221 for the Wilmington Social Security Office. SSA's national number is 1-800-772-1213.

How Do I Make an Appointment at the Social Security Office in New Castle?

Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call the Wilmington Social Security 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. SSA asks you to make an appointment before visiting an office.

Every Social Security office in Delaware

Sources

  1. Social Security Administration, field office and resident station data (updated March 9, 2026)
  2. SSA Office Locator (offices and ZIP code assignments, checked October 1, 2026)
  3. U.S. Census Bureau: geocoder, 2023 Gazetteer files and 2020 ZIP Code Tabulation Area relationship files
  4. SSA: Make an appointment
  5. SSA: Contact by phone
  6. SSA: Office locator guidance (appointments and Card Centers)

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.