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South Dakota Medicare plans by county — 2026
66 counties in South Dakota are served by 1,669 Medicare plans from 10 carriers in 2026. 53 Medicare Advantage plans have a $0 premium. 163,311 residents are 65 or older.
| County | Plans | Carriers | $0 premium | Avg. stars | Residents 65+ | Plans vs. prior year |
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| Aurora County | 29 | 8 | 1 | 3.8 | 520 | |
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| Beadle County | 27 | 7 | 1 | 3.8 | 3,561 | |
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| Bennett County | 19 | 7 | 0 | 3.5 | 512 | |
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| Bon Homme County | 31 | 9 | 1 | 3.8 | 1,514 | |
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| Brookings County | 29 | 10 | 2 | 4.0 | 4,736 | |
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| Brown County | 22 | 7 | 0 | 3.8 | 6,731 | |
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| Brule County | 24 | 7 | 1 | 3.7 | 1,110 | |
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| Buffalo County | 24 | 7 | 1 | 3.7 | 166 | |
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| Butte County | 21 | 8 | 0 | 3.8 | 2,149 | |
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| Campbell County | 29 | 8 | 1 | 3.8 | 429 | |
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| Charles Mix County | 31 | 9 | 1 | 3.8 | 1,759 | |
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| Clark County | 27 | 9 | 2 | 4.0 | 921 | |
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| Clay County | 31 | 9 | 2 | 3.9 | 1,856 | |
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| Codington County | 20 | 8 | 0 | 3.9 | 5,625 | |
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| Corson County | 29 | 8 | 1 | 3.8 | 501 | |
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| Custer County | 23 | 9 | 0 | 3.8 | 2,997 | |
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| Davison County | 27 | 9 | 1 | 3.9 | 4,156 | |
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| Day County | 29 | 10 | 2 | 4.0 | 1,449 | |
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| Deuel County | 29 | 10 | 2 | 4.0 | 956 | |
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| Dewey County | 24 | 8 | 0 | 3.7 | 518 | |
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| Douglas County | 33 | 10 | 2 | 3.9 | 693 | |
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| Edmunds County | 21 | 8 | 0 | 3.5 | 928 | |
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| Fall River County | 21 | 8 | 0 | 3.8 | 2,382 | |
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| Faulk County | 19 | 7 | 0 | 3.5 | 512 | |
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| Grant County | 19 | 7 | 0 | 3.5 | 1,767 | |
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| Gregory County | 24 | 7 | 1 | 3.7 | 1,068 | |
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| Haakon County | 25 | 8 | 0 | 3.7 | 501 | |
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| Hamlin County | 23 | 7 | 1 | 4.0 | 911 | |
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| Hand County | 21 | 8 | 0 | 3.5 | 759 | |
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| Hanson County | 31 | 9 | 2 | 3.9 | 566 | |
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| Harding County | 24 | 8 | 0 | 3.7 | 238 | |
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| Hughes County | 21 | 7 | 0 | 3.7 | 3,188 | |
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| Hutchinson County | 31 | 9 | 2 | 3.9 | 1,613 | |
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| Hyde County | 19 | 7 | 0 | 3.5 | 337 | |
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| Jackson County | 25 | 8 | 0 | 3.7 | 348 | |
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| Jerauld County | 26 | 8 | 1 | 3.7 | 545 | |
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| Jones County | 19 | 7 | 0 | 3.5 | 245 | |
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| Kingsbury County | 29 | 10 | 2 | 4.0 | 1,211 | |
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| Lake County | 31 | 9 | 2 | 3.9 | 2,666 | |
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| Lawrence County | 23 | 9 | 0 | 3.8 | 6,813 | |
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| Lincoln County | 33 | 10 | 2 | 3.9 | 10,366 | |
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| Lyman County | 19 | 7 | 0 | 3.5 | 682 | |
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| Marshall County | 27 | 9 | 2 | 4.0 | 1,009 | |
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| McCook County | 33 | 10 | 2 | 3.9 | 1,082 | |
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| McPherson County | 21 | 8 | 0 | 3.5 | 711 | |
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| Meade County | 23 | 9 | 0 | 3.8 | 5,104 | |
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| Mellette County | 19 | 7 | 0 | 3.5 | 319 | |
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| Miner County | 33 | 10 | 2 | 3.9 | 596 | |
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| Minnehaha County | 33 | 10 | 2 | 3.9 | 28,306 | |
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| Moody County | 33 | 10 | 2 | 3.9 | 1,293 | |
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| Oglala Lakota County | 19 | 7 | 0 | 3.5 | 1,013 | |
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| Pennington County | 23 | 9 | 0 | 3.8 | 22,870 | |
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| Perkins County | 24 | 8 | 0 | 3.7 | 806 | |
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| Potter County | 19 | 7 | 0 | 3.5 | 734 | |
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| Roberts County | 24 | 10 | 1 | 4.0 | 2,137 | |
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| Sanborn County | 27 | 9 | 2 | 4.0 | 482 | |
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| Spink County | 23 | 7 | 1 | 4.0 | 1,522 | |
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| Stanley County | 21 | 7 | 0 | 3.7 | 735 | |
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| Sully County | 19 | 7 | 0 | 3.5 | 353 | |
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| Todd County | 19 | 7 | 0 | 3.5 | 726 | |
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| Tripp County | 21 | 8 | 0 | 3.5 | 1,380 | |
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| Turner County | 33 | 10 | 2 | 3.9 | 1,804 | |
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| Union County | 31 | 9 | 1 | 3.8 | 3,328 | |
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| Walworth County | 29 | 8 | 1 | 3.8 | 1,212 | |
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| Yankton County | 29 | 8 | 1 | 3.8 | 5,005 | |
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| Ziebach County | 24 | 8 | 0 | 3.7 | 279 | |
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This page summarizes publicly available CMS data. It is not a plan finder and does not recommend plans. To compare and enroll in plans, use Medicare.gov or talk to a licensed agent. Medicare.gov plan finder.