Which Social Security Office Serves Your ZIP Code in Warrenton?
SSA assigns Warrenton's ZIP code, 63383, to the St. Peters Social Security Office in Saint Peters. For one ZIP code, the assigned office isn't the closest one, so check your ZIP before you go.
ZIP code 63383 goes to the St. Peters Social Security Office, 4800 Executive Ctr Pky, Saint Peters.
Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps Warrenton (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 Warrenton
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 Troy
Troy is about 14 miles northeast of central Warrenton. SSA assigns its ZIP code, 63379, to the Hannibal Social Security Office at 155 Forrest Drive, Hannibal, open Monday to Friday, 9:00 AM to 4:00 PM. The St. Peters Social Security Office is closer to central Troy (about 24 miles, against 57 miles), but it isn't the office SSA assigns.
More on Social Security offices near Troy
Social Security Office Near Wentzville
Wentzville is about 14 miles east of central Warrenton. SSA assigns its ZIP code, 63385, 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.
More on Social Security offices near Wentzville
Social Security Office Near Lake St. Louis
Lake St. Louis is about 19 miles east of central Warrenton. SSA assigns its ZIP code, 63367, 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.
More on Social Security offices near Lake St. Louis
Social Security Office Near Washington
Washington is about 20 miles south of central Warrenton. 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 Innsbrook
Innsbrook is about 6.0 miles southeast of central Warrenton. SSA assigns its ZIP code, 63390, 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 Innsbrook (about 24 miles, against 25 miles), but it isn't the office SSA assigns.
Social Security Office Near Foristell
Foristell is about 9.6 miles east of central Warrenton. SSA assigns its ZIP code, 63348, 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.
Social Security Office Near Wright City
Wright City is about 5.6 miles east of central Warrenton. SSA assigns its ZIP code, 63390, 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.
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.
Social Security Offices Near Other Missouri Cities
Frequently Asked Questions
Where Is the Social Security Office in Warrenton?
There isn't an office in Warrenton, MO itself. The closest is the Union Social Security Office, 43 Prairie Dell Plz, Suite 5, Union, MO 63084, about 29 miles away.
Which Social Security Office Serves My ZIP Code in Warrenton?
SSA assigns Warrenton's ZIP code, 63383, to the St. Peters Social Security Office in Saint Peters. 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 Warrenton?
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 Warrenton?
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 Near Warrenton?
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