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

Social Security Office in Union, MO

Where Is the Social Security Office in Union, MO?

The Union Social Security Office is in Union, at 43 Prairie Dell Plz, Suite 5, open Monday to Friday, 9:00 AM to 4:00 PM. The next closest is the St. Louis Southwest Social Security Office, about 30 miles away.

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Social Security Offices in Union

Other Offices Near Union

Straight-line distance from the center of Union (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 Union

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Social Security office

Which Social Security Office Serves Your ZIP Code in Union?

SSA assigns Union's ZIP code, 63084, to the Union 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 Union
ZIP codeOffice SSA assignsDistance
63084Union Social Security Office for ZIP code 630842.8 miles

ZIP code 63084 goes to the Union Social Security Office, 43 Prairie Dell Plz, Suite 5, Union.

Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps Union (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 Union

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 Washington

Washington is about 8.0 miles north of central Union. SSA assigns its ZIP code, 63090, to the Union Social Security Office at 43 Prairie Dell Plz, Suite 5, Union, open Monday to Friday, 9:00 AM to 4:00 PM.

More on Social Security offices near Washington

Social Security Office Near Eureka

Eureka is about 19 miles east of central Union. Its ZIP codes are split between offices: 63025 goes to the St. Louis Southwest Social Security Office in Fenton; 63069 goes to the Union Social Security Office in Union.

More on Social Security offices near Eureka

Social Security Office Near Gray Summit

Gray Summit is about 11 miles east of central Union. SSA assigns its ZIP codes (63039 and 63069) to the Union Social Security Office at 43 Prairie Dell Plz, Suite 5, Union, open Monday to Friday, 9:00 AM to 4:00 PM.

Social Security Office Near Villa Ridge

Villa Ridge is about 6.4 miles east of central Union. SSA assigns its ZIP code, 63089, to the Union Social Security Office at 43 Prairie Dell Plz, Suite 5, Union, open Monday to Friday, 9:00 AM to 4:00 PM.

Social Security Office Near St. Clair

St. Clair is about 6.3 miles south of central Union. SSA assigns its ZIP code, 63077, to the Union Social Security Office at 43 Prairie Dell Plz, Suite 5, Union, open Monday to Friday, 9:00 AM to 4:00 PM.

Social Security Office Near Three Creeks

Three Creeks is about 9.3 miles north of central Union. SSA assigns its ZIP code, 63357, to the St. Peters Social Security Office at 4800 Executive Ctr Pky, Saint Peters, open Monday to Friday, 9:00 AM to 4:00 PM. The Union Social Security Office is closer to central Three Creeks (about 10 miles, against 27 miles), but it isn't the office SSA assigns.

How to Get an Appointment at the Union 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 Union Social Security Office at (866) 837-1063, 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 Missouri Cities

Frequently Asked Questions

Where Is the Social Security Office in Union?

Union Social Security Office: 43 Prairie Dell Plz, Suite 5, Union, MO 63084.

Which Social Security Office Serves My ZIP Code in Union?

SSA assigns Union's ZIP code, 63084, to the Union 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 Union?

The Union Social Security Office is open Monday to Friday, 9:00 AM to 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 Union?

SSA lists (866) 837-1063 for the Union Social Security Office. SSA's national number is 1-800-772-1213.

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

Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call the Union Social Security Office at (866) 837-1063 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 Missouri

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.