Medicare plan changes in South Dakota for 2027
Across 66 counties in South Dakota, the 2027 CMS file lists 159 county listings of Medicare Advantage plans with drug coverage, compared with 211 in 2026. By our count, 26 counties have none in 2027, including counties that do not appear in the CMS file at all.
Before you choose a plan
Compare plans for your ZIP code, drugs and doctors on the official Medicare Plan Finder, or call 1-800-MEDICARE (1-800-633-4227). Free, unbiased counselling is available from your State Health Insurance Assistance Program at shiphelp.org.
By county
| County | 2026 plans | 2027 plans | Change | Companies leaving |
|---|---|---|---|---|
| Aurora County | 3 | 0 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Beadle County | 2 | 0 | -2 | CVS Health Corporation |
| Bennett County | 0 | 0 | +0 | None |
| Bon Homme County | 3 | 0 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Brookings County | 8 | 9 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Brown County | 0 | 0 | +0 | None |
| Brule County | 2 | 0 | -2 | CVS Health Corporation |
| Buffalo County | 2 | 0 | -2 | CVS Health Corporation |
| Butte County | 5 | 3 | -2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Campbell County | 3 | 3 | +0 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Charles Mix County | 3 | 0 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Clark County | 8 | 5 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Clay County | 5 | 6 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Codington County | 3 | 3 | +0 | None |
| Corson County | 3 | 3 | +0 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Custer County | 5 | 3 | -2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Davison County | 6 | 3 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Day County | 8 | 5 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Deuel County | 8 | 5 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Dewey County | 1 | 3 | +2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Douglas County | 5 | 2 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Edmunds County | 1 | 0 | -1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Fall River County | 5 | 3 | -2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Faulk County | 0 | 0 | +0 | None |
| Grant County | 0 | 0 | +0 | None |
| Gregory County | 2 | 0 | -2 | CVS Health Corporation |
| Haakon County | 2 | 3 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Hamlin County | 5 | 3 | -2 | CVS Health Corporation |
| Hand County | 0 | 0 | +0 | None |
| Hanson County | 5 | 2 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Harding County | 1 | 3 | +2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Hughes County | 0 | 0 | +0 | None |
| Hutchinson County | 5 | 2 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Hyde County | 0 | 0 | +0 | None |
| Jackson County | 2 | 3 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Jerauld County | 3 | 0 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Jones County | 0 | 0 | +0 | None |
| Kingsbury County | 8 | 5 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Lake County | 5 | 6 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Lawrence County | 5 | 3 | -2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Lincoln County | 5 | 6 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Lyman County | 0 | 0 | +0 | None |
| Marshall County | 8 | 5 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| McCook County | 5 | 6 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| McPherson County | 1 | 0 | -1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Meade County | 5 | 3 | -2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Mellette County | 0 | 0 | +0 | None |
| Miner County | 5 | 2 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Minnehaha County | 5 | 6 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Moody County | 5 | 6 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Oglala Lakota County | 0 | 0 | +0 | None |
| Pennington County | 5 | 3 | -2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Perkins County | 1 | 3 | +2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Potter County | 0 | 0 | +0 | None |
| Roberts County | 6 | 5 | -1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Sanborn County | 8 | 5 | -3 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Spink County | 5 | 3 | -2 | CVS Health Corporation |
| Stanley County | 0 | 0 | +0 | None |
| Sully County | 0 | 0 | +0 | None |
| Todd County | 0 | 0 | +0 | None |
| Tripp County | 0 | 0 | +0 | None |
| Turner County | 5 | 6 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Union County | 3 | 4 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Walworth County | 3 | 3 | +0 | Blue Cross Blue Shield of Michigan Mutual Ins. Co., CVS Health Corporation |
| Yankton County | 3 | 4 | +1 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
| Ziebach County | 1 | 3 | +2 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. |
Stand-alone Part D drug plans in South Dakota for 2027
9 plans in 2027, compared with 11 in 2026. Lowest monthly drug plan premium: $5.30 (2026: $4.70).
| Plan | Company | Monthly premium | Deductible | Star rating |
|---|---|---|---|---|
| Wellcare Value Script (PDP) | Wellcare | $5.30 | $700 | Not Applicable |
| AARP Medicare Rx Saver from UHC (PDP) | UnitedHealthcare | $10.30 | $700 | Not Applicable |
| Wellcare Classic (PDP) | Wellcare | $16.30 | $700 | Not Applicable |
| Humana Basic Rx Plan (PDP) | Humana | $18.30 | $700 | Not Applicable |
| Humana Value Rx Plan (PDP) | Humana | $33.30 | $687 | Not Applicable |
| HealthSpring Assurance Rx (PDP) | HealthSpring | $117.10 | $700 | Not Applicable |
| Humana Premier Rx Plan (PDP) | Humana | $123.00 | $350 | Not Applicable |
| MedicareBlue Rx Standard (PDP) | MedicareBlue Rx | $179.10 | $700 | Not Applicable |
| AARP Medicare Rx Preferred from UHC (PDP) | UnitedHealthcare | $222.90 | $300 | Not Applicable |
Sources
- Centers for Medicare & Medicaid Services, CY2027 Medicare Advantage and Part D Landscape file (data last updated 18 October 2026)
- Centers for Medicare & Medicaid Services, CY2026 Medicare Advantage and Part D Landscape file (September 2026 release)
- US Census Bureau, 2024 Gazetteer Files, counties
Checked 29 October 2026. Plans and premiums can change before 1 January 2027. Confirm any plan on Medicare.gov before you enrol.