Senior Assistance Center

Extra Help with Medicare Prescription Drug Costs (Low-Income Subsidy) offices in South Dakota

South Dakota has 6 offices that handle Extra Help with Medicare Prescription Drug Costs (Low-Income Subsidy). Every address, phone number and map below is listed here so you can call or visit without hunting on another website.

Written and checked by Jason Burns, Editorial Steward · Checked August 25, 2026

Every South Dakota office

  • Social Security Office — Aberdeen Sd

    115 4th Ave SE, Room 111 Federal Bldg, Aberdeen, SD 57401

    Phone: (855) 278-4196

    TTY: 1-800-325-0778

    Hours: Mon-Fri 9:00 AM to 4:00 PM

    Source: SSA Open Data: Field Office Address and Open/Close Times (CSV), retrieved August 26, 2026. Not independently verified — call ahead.

    Get directionsOffice website

  • Social Security Office — Huron Sd

    200 4th Street SW, Room 105 Federal Bldg, Huron, SD 57350

    Phone: (866) 563-4604

    TTY: 1-800-325-0778

    Hours: Mon-Fri 9:00 AM to 4:00 PM

    Source: SSA Open Data: Field Office Address and Open/Close Times (CSV), retrieved August 26, 2026. Not independently verified — call ahead.

    Get directionsOffice website

  • Social Security Office — Rapid City Sd

    2200 North Maple Ave, Ste 301, Rapid City, SD 57701

    Phone: (866) 964-7416

    TTY: 1-800-325-0778

    Hours: Mon-Fri 9:00 AM to 4:00 PM

    Source: SSA Open Data: Field Office Address and Open/Close Times (CSV), retrieved August 26, 2026. Not independently verified — call ahead.

    Get directionsOffice website

  • Social Security Office — Sioux Falls Sd

    5021 S Nevada Ave, Sioux Falls, SD 57108

    Phone: (877) 274-5421

    TTY: 1-800-325-0778

    Hours: Mon-Fri 9:00 AM to 4:00 PM

    Source: SSA Open Data: Field Office Address and Open/Close Times (CSV), retrieved August 26, 2026. Not independently verified — call ahead.

    Get directionsOffice website

  • Social Security Office — Watertown Sd

    514 Jenson Ave SE, Watertown, SD 57201

    Phone: (888) 737-1763

    TTY: 1-800-325-0778

    Hours: Mon-Fri 9:00 AM to 4:00 PM

    Source: SSA Open Data: Field Office Address and Open/Close Times (CSV), retrieved August 26, 2026. Not independently verified — call ahead.

    Get directionsOffice website

  • Social Security Office — Yankton Sd

    1818 Broadway Ave, Suite 2, Yankton, SD 57078

    Phone: (877) 405-3522

    TTY: 1-800-325-0778

    Hours: Mon-Fri 9:00 AM to 4:00 PM

    Source: SSA Open Data: Field Office Address and Open/Close Times (CSV), retrieved August 26, 2026. Not independently verified — call ahead.

    Get directionsOffice website

Call before you go

Hours change and some offices see people by appointment only. A phone call can often settle the whole thing without a trip.

Sources

See offices in another state