SSA Field Office · Office Code 698
The Mason City Social Security Office is a Social Security field office at 625 Village Green Dr SW, Mason City, IA 50401, phone (866) 365-6708. 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 Des Moines, IA Hearing Office in Des Moines, IA.
625 Village Green Dr SW
Mason City, IA 50401
Call (866) 365-6708 for the Mason City Social Security OfficeDirections to the Mason City Social Security Office
Fax: (833) 515-0435
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) 365-6708 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 Des Moines, IA Hearing Office as the hearing office for people the Mason City 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 |
|---|---|---|---|
| Mason City (this office) | (866) 365-6708 | 9:00 AM to 4:00 PM | |
| Austin Social Security Office, Austin, MN | 39 mi | (866) 504-5010 | 9:00 AM to 4:00 PM |
| Waterloo Social Security Office, Waterloo, IA | 63 mi | (888) 456-9554 | 9:00 AM to 4:00 PM |
| Fort Dodge Social Security Office, Fort Dodge, IA | 64 mi | (866) 839-6193 | 9:00 AM to 4:00 PM |
| Fairmont Social Security Office, Fairmont, MN | 70 mi | (877) 405-0414 | 9:00 AM to 4:00 PM |
| Rochester Social Security Office, Rochester, MN | 72 mi | (877) 405-3631 | 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 Iowa · Offices in and near Mason City
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) 365-6708 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 Des Moines, IA Hearing Office as serving the Mason City field office. It's at Capitol Center 3, Suite 200, 400 E. Court Ave, Des Moines, IA 50309-9821, phone (877) 628-6577 Ext. 20826. You usually ask for a hearing through your field office or online, not at the hearing office.
SSA assigns 56 ZIP codes to this office: 50041, 50227, 50401, 50420, 50423, 50424, 50426, 50427, 50428, 50430, 50431, 50432, 50433, 50434, 50435, 50436, 50438, 50439, 50440, 50441, 50444, 50446, 50447, 50448 and 50449 and others listed on this page. If yours is listed, this is your office.
The Austin Social Security Office in Austin, MN, about 39 mi away ((866) 504-5010).
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.