SSA Field Office · Office Code B38
The Union Social Security Office is a Social Security field office at 43 Prairie Dell Plz, Suite 5, Union, MO 63084, phone (866) 837-1063. SSA lists its hours as Monday to Friday, 9:00 AM to 4:00 PM. Appeals from people this office serves are heard at the Creve Coeur Satellite Hearing Office in Creve Coeur, MO.
43 Prairie Dell Plz, Suite 5
Union, MO 63084
Call (866) 837-1063 for the Union Social Security OfficeDirections to the Union Social Security Office
Fax: (833) 950-2650
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) 837-1063 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 Creve Coeur Satellite Hearing Office as the hearing office for people the Union 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 |
|---|---|---|---|
| Union (this office) | (866) 837-1063 | 9:00 AM to 4:00 PM | |
| St. Louis Southwest Social Security Office, Fenton, MO | 29 mi | (866) 331-2307 | 9:00 AM to 4:00 PM |
| St. Louis West County Social Security Office, Creve Coeur, MO | 32 mi | (855) 820-0096 | 9:00 AM to 4:00 PM |
| St. Peters Social Security Office, Saint Peters, MO | 33 mi | (877) 405-3570 | 9:00 AM to 4:00 PM |
| St. Louis-Southside Social Security Office, Rock Hill, MO | 35 mi | (877) 714-0372 | 9:00 AM to 4:00 PM |
| St. Louis Central Social Security Office, Saint Louis, MO | 41 mi | (888) 810-7291 | 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.
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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 Missouri · Offices in and near Union
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.
Monday to Friday, 9:00 AM to 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) 837-1063 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 Creve Coeur Satellite Hearing Office as serving the Union field office. It's at Suite 100, 1285 Fern Ridge Parkway, Creve Coeur, MO 63141, phone (877) 833-2445. You usually ask for a hearing through your field office or online, not at the hearing office.
SSA assigns 25 ZIP codes to this office: 63013, 63014, 63015, 63037, 63039, 63055, 63056, 63060, 63061, 63068, 63069, 63072, 63073, 63077, 63079, 63080, 63084, 63089, 63090, 63091, 65014, 65041, 65061, 65062 and 65066. If yours is listed, this is your office.
The St. Louis Southwest Social Security Office in Fenton, MO, about 29 mi away ((866) 331-2307).
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.