Which Social Security Office Serves Your ZIP Code in Oshkosh?
SSA assigns all 4 ZIP codes in Oshkosh to the Oshkosh Social Security Office. SSA assigns offices by ZIP code, so the office to use is the one listed for your ZIP.
ZIP codes 54901, 54902, 54904 and 54985 go to the Oshkosh Social Security Office, 400 City Center STE B, Oshkosh.
Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps Oshkosh (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 Oshkosh
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 Menasha
Menasha is about 15 miles northeast of central Oshkosh. SSA assigns its ZIP code, 54952, to the Appleton Social Security Office at 607 W Northland Ave, Appleton, open Monday to Friday, 9:00 AM to 4:00 PM.
More on Social Security offices near Menasha
Social Security Office Near Neenah
Neenah is about 11 miles northeast of central Oshkosh. SSA assigns its ZIP code, 54956, to the Appleton Social Security Office at 607 W Northland Ave, Appleton, open Monday to Friday, 9:00 AM to 4:00 PM.
More on Social Security offices near Neenah
Social Security Office Near Fox Crossing
Fox Crossing is about 15 miles north of central Oshkosh. SSA assigns its ZIP code, 54956, to the Appleton Social Security Office at 607 W Northland Ave, Appleton, open Monday to Friday, 9:00 AM to 4:00 PM.
More on Social Security offices near Fox Crossing
Social Security Office Near Harrison
Harrison is about 18 miles northeast of central Oshkosh. SSA assigns its ZIP codes (54915 and 54952) to the Appleton Social Security Office at 607 W Northland Ave, Appleton, open Monday to Friday, 9:00 AM to 4:00 PM.
More on Social Security offices near Harrison
Social Security Office Near Greenville
Greenville is about 18 miles north of central Oshkosh. SSA splits its 17 ZIP codes among 2 offices: 14 to the Appleton Social Security Office in Appleton and 3 to the Oshkosh Social Security Office in Oshkosh. Its own page lists every ZIP code.
More on Social Security offices near Greenville
Social Security Office Near Fond Du Lac
Fond Du Lac is about 18 miles south of central Oshkosh. SSA assigns its ZIP codes (54935 and 54937) to the Fond Du Lac Social Security Office at 180 Knights Way, Suite 100, Fond Du Lac, open Monday to Friday, 9:00 AM to 4:00 PM.
More on Social Security offices near Fond Du Lac
Social Security Office Near Appleton
Appleton is about 20 miles northeast of central Oshkosh. SSA assigns its ZIP codes (54911, 54913 and 54915) to the Appleton Social Security Office at 607 W Northland Ave, Appleton, open Monday to Friday, 9:00 AM to 4:00 PM.
More on Social Security offices near Appleton
Social Security Office Near Omro
Omro is about 8.7 miles west of central Oshkosh. SSA assigns its ZIP code, 54963, to the Oshkosh Social Security Office at 400 City Center STE B, Oshkosh, open Monday to Friday, 9:00 AM to 4:00 PM.
How to Get an Appointment at the Oshkosh 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 Oshkosh Social Security Office at (877) 445-0834, 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.
Video Appointments Near Oshkosh
SSA also meets people by video at partner sites: Pillar Adult Shelter And Resource Center in Appleton (about 18 miles) and Menominee Indian Tribe Of Wisconsin in Keshena (about 58 miles). Ask an office whether a video appointment fits your visit.
Social Security Offices Near Other Wisconsin Cities
Frequently Asked Questions
Where Is the Social Security Office in Oshkosh?
Oshkosh Social Security Office: 400 City Center STE B, Oshkosh, WI 54901.
Which Social Security Office Serves My ZIP Code in Oshkosh?
SSA assigns all 4 ZIP codes in Oshkosh to the Oshkosh 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 Oshkosh?
The Oshkosh 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 Oshkosh?
SSA lists (877) 445-0834 for the Oshkosh Social Security Office. SSA's national number is 1-800-772-1213.
How Do I Make an Appointment at the Social Security Office in Oshkosh?
Schedule online on SSA's appointment page, where the appointment may be by phone or in person, or call the Oshkosh Social Security Office at (877) 445-0834 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 Wisconsin