What are the hours of the Union Social Security office?

The Union office is generally open 9am to 4pm, Monday through Friday, and closed on weekends and federal holidays. The live status and full weekly hours are at the top of this page, call ahead, as hours can change.

Do I need an appointment at the Union office?

Since 2025, the Social Security Administration asks most visitors to schedule an appointment before visiting a field office. Call (866) 837-1063 or 1-800-772-1213 to book one and reduce your wait.

What is the phone number for the Union Social Security office?

You can reach the office at (866) 837-1063 (TTY 1-800-325-0778), or use the SSA national line at 1-800-772-1213 (TTY 1-800-325-0778), Monday to Friday.

Which towns does the Union Social Security office serve?

Besides Union, this is the closest office for about 37 surrounding communities, including Villa Ridge, St. Clair, Parkway, Lake St. Clair, Gray Summit. There's a full list of nearby towns and distances on this page.

Is there another Social Security office near Union?

The next-closest field office is in Fenton, about 29 miles away. Other nearby offices are listed on this page with their distances.

Can I replace my Social Security card without visiting the Union office?

In most states you can request a replacement card online with a free my Social Security account at ssa.gov, no office visit needed. You can also check applications, request benefit letters, and update direct deposit there.

Union Social Security Office

43 Prairie Dell Plz, Suite 5, Union, MO 63084

Verified against the SSA directory on May 23, 2026

The Union Social Security office is one of 32 field offices in Missouri, serving Putnam County and the surrounding area. It is the closest office for residents of Union and 37 nearby communities, roughly 67,000 people. The nearest other Social Security office is in Fenton, about 29 miles away.

nearby towns served: 37
people in service area: 67K
to next-nearest office: 29 mi
offices in Missouri: 32
county: Putnam County

Address

43 Prairie Dell Plz
Suite 5
Union, MO 63084

Get directions

Phone

Local:: (866) 837-1063
National:: 1-800-772-1213
TTY:: 1-800-325-0778

Union office hours

Hours below

Open 9am-4pm, Monday to Friday. Closed weekends and federal holidays.

Monday	9am to 4pm
Tuesday	9am to 4pm
Wednesday	9am to 4pm
Thursday	9am to 4pm
Friday	9am to 4pm
Saturday	Closed
Sunday	Closed

Before you visit

Most services now require an appointment. Call ahead at (866) 837-1063 or 1-800-772-1213 to book one.
Bring a photo ID and your Social Security number.
Bring original documents for your request, for a new or replacement card, proof of identity and citizenship or immigration status.
Many tasks don't need a visit: replace a card, get a benefit letter, or update direct deposit online at ssa.gov.

Directions to the Union office

We are Relocating on 1/22/2013.
Our new address is 43 Prairie Dell Plaza, Suite 5, Union, Mo 63084.
From Highway 50, go south on Prairie Dell Road and then left onto Prairie Dell Plaza.
We are across Prairie Dell Road from east Central College.

Union office location

Open this location on OpenStreetMap →

38.42673, -90.96791 View on OpenStreetMap →

Services at the Union Social Security office

Staff at the Union office handle the full range of Social Security business, including:

Apply for a new or replacement Social Security card
Apply for retirement, disability (SSDI), or SSI benefits
Change your name on your Social Security record
Update direct deposit and mailing address
Request proof of benefits or a benefit verification letter
Get help enrolling in Medicare
Check the status of an application or appeal

Want to prepare first? See our guides on getting an award letter, checking your earnings record, and when to claim retirement.

Towns served by the Union office

Many nearby towns have no Social Security office of their own, so the Union office is their closest option. It's the nearest field office for 37 surrounding communities, the largest is Washington (14,916 residents):

Town	Distance	Population
Washington, MO	9.4 mi	14,916
Pacific, MO	12.1 mi	7,354
St. Clair, MO	5.7 mi	4,764
Villa Ridge, MO	5.4 mi	3,179
Gray Summit, MO	9.3 mi	2,383
Lake St. Clair, MO	7.4 mi	692
Parkway, MO	6.1 mi	662
Augusta, MO	11.1 mi	267
Stanton, MO	12.9 mi	249
Lake Tekakwitha, MO	13.6 mi	231
Charmwood, MO	12.4 mi	16
Three Creeks, MO	10.2 mi	7

…and 25 more nearby communities closest to this office.

Browse all Missouri offices →

Other Social Security offices near Union

More Social Security help

All Missouri offices Every field office in the state, by city. Find an office near you Sort offices by distance from your location. Average retirement check by age What people actually receive at each claiming age. Avoid Social Security scams When SSA really calls, and the red flags to watch.

Frequently asked questions about the Union office

What are the hours of the Union Social Security office?: The Union office is generally open 9am to 4pm, Monday through Friday, and closed on weekends and federal holidays. The live status and full weekly hours are at the top of this page, call ahead, as hours can change.
Do I need an appointment at the Union office?: Since 2025, the Social Security Administration asks most visitors to schedule an appointment before visiting a field office. Call (866) 837-1063 or 1-800-772-1213 to book one and reduce your wait.
What is the phone number for the Union Social Security office?: You can reach the office at (866) 837-1063 (TTY 1-800-325-0778), or use the SSA national line at 1-800-772-1213 (TTY 1-800-325-0778), Monday to Friday.
Which towns does the Union Social Security office serve?: Besides Union, this is the closest office for about 37 surrounding communities, including Villa Ridge, St. Clair, Parkway, Lake St. Clair, Gray Summit. There's a full list of nearby towns and distances on this page.
Is there another Social Security office near Union?: The next-closest field office is in Fenton, about 29 miles away. Other nearby offices are listed on this page with their distances.
Can I replace my Social Security card without visiting the Union office?: In most states you can request a replacement card online with a free my Social Security account at ssa.gov, no office visit needed. You can also check applications, request benefit letters, and update direct deposit there.