Medicare plans
Medicare plans in South Dakota
22 Medicare Advantage plans are offered somewhere in South Dakota for 2027 (19 in 2026), 8 at a $0 premium. 66 of 66 counties have at least one, and 9 drug-only plans cover the state.
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South Dakota at a glance
| Plans offered in the state | 2026 | 2027 |
|---|---|---|
| Advantage | 19 | 22 |
| Advantage at a $0 premium | 6 | 8 |
| Drug only | 11 | 9 |
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Source: CMS CY2026 Medicare Advantage and Part D landscape file, as of September 25, 2025. Publisher page
Counties in South Dakota
- Aurora County3 Advantage plans, 1 at $0
- Beadle County3 Advantage plans, 1 at $0
- Bennett CountyNo Advantage plans
- Bon Homme County5 Advantage plans, 1 at $0
- Brookings County19 Advantage plans, 8 at $0
- Brown County3 Advantage plans, 1 at $0
- Brule CountyNo Advantage plans
- Buffalo CountyNo Advantage plans
- Butte County7 Advantage plans, 2 at $0
- Campbell County7 Advantage plans, 2 at $0
- Charles Mix County5 Advantage plans, 1 at $0
- Clark County9 Advantage plans, 2 at $0
- Clay County13 Advantage plans, 7 at $0
- Codington County9 Advantage plans, 2 at $0
- Corson County7 Advantage plans, 2 at $0
- Custer County9 Advantage plans, 2 at $0
- Davison County9 Advantage plans, 2 at $0
- Day County11 Advantage plans, 2 at $0
- Deuel County11 Advantage plans, 2 at $0
- Dewey County7 Advantage plans, 2 at $0
- Douglas County7 Advantage plans, 1 at $0
- Edmunds CountyNo Advantage plans
- Fall River County7 Advantage plans, 2 at $0
- Faulk CountyNo Advantage plans
- Grant CountyNo Advantage plans
- Gregory CountyNo Advantage plans
- Haakon County7 Advantage plans, 2 at $0
- Hamlin County7 Advantage plans, 2 at $0
- Hand County2 Advantage plans, 0 at $0
- Hanson County5 Advantage plans, 1 at $0
- Harding County7 Advantage plans, 2 at $0
- Hughes County2 Advantage plans, 0 at $0
- Hutchinson County5 Advantage plans, 1 at $0
- Hyde CountyNo Advantage plans
- Jackson County7 Advantage plans, 2 at $0
- Jerauld CountyNo Advantage plans
- Jones CountyNo Advantage plans
- Kingsbury County11 Advantage plans, 2 at $0
- Lake County13 Advantage plans, 7 at $0
- Lawrence County9 Advantage plans, 2 at $0
- Lincoln County15 Advantage plans, 7 at $0
- Lyman CountyNo Advantage plans
- Marshall County9 Advantage plans, 2 at $0
- McCook County15 Advantage plans, 7 at $0
- McPherson CountyNo Advantage plans
- Meade County9 Advantage plans, 2 at $0
- Mellette CountyNo Advantage plans
- Miner County7 Advantage plans, 1 at $0
- Minnehaha County15 Advantage plans, 7 at $0
- Moody County15 Advantage plans, 7 at $0
- Oglala Lakota CountyNo Advantage plans
- Pennington County9 Advantage plans, 2 at $0
- Perkins County7 Advantage plans, 2 at $0
- Potter CountyNo Advantage plans
- Roberts County11 Advantage plans, 2 at $0
- Sanborn County9 Advantage plans, 2 at $0
- Spink County7 Advantage plans, 2 at $0
- Stanley County2 Advantage plans, 0 at $0
- Sully CountyNo Advantage plans
- Todd CountyNo Advantage plans
- Tripp County2 Advantage plans, 0 at $0
- Turner County15 Advantage plans, 7 at $0
- Union County13 Advantage plans, 7 at $0
- Walworth County7 Advantage plans, 2 at $0
- Yankton County11 Advantage plans, 7 at $0
- Ziebach County7 Advantage plans, 2 at $0
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
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Rivvi's county landscape snapshot lists every 2027 plan in a client's county, counted by type and carrier, with premium and out-of-pocket ranges.
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About this data
Plans, premiums, out-of-pocket maximums, and drug deductibles come from the CMS CY2027 Medicare Advantage and Part D landscape file. Change from 2026 compares it with the CY2026 landscape. Stars are the 2027 Star Ratings CMS released October 8, 2026: the overall rating for Advantage plans and the Part D summary rating for drug-only plans, which have no overall rating.
Advantage counts include Special Needs Plans, which are open only to people who qualify. Drug-only plans are listed by CMS for a whole state, so every county page shows them. Employer group plans are not in the file. This page lists plans; it does not say which plan fits anyone, and Rivvi does not sell plans.
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Source: CMS CY2026 Medicare Advantage and Part D landscape file, as of September 25, 2025. Publisher page
Source: CMS 2027 Medicare Part C and D Star Ratings, as of October 8, 2026. Publisher page