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Colorado Medicare plans by county — 2026
64 counties in Colorado are served by 2,452 Medicare plans from 13 carriers in 2026. 741 Medicare Advantage plans have a $0 premium. 914,002 residents are 65 or older.
| County | Plans | Carriers | $0 premium | Avg. stars | Residents 65+ | Plans vs. prior year |
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| Adams County | 81 | 13 | 38 | 3.9 | 59,925 | |
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| Alamosa County | 24 | 5 | 3 | 3.8 | 2,507 | |
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| Arapahoe County | 78 | 13 | 35 | 3.9 | 95,133 | |
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| Archuleta County | 28 | 5 | 4 | 3.6 | 3,997 | |
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| Baca County | 12 | 5 | 0 | 4.0 | 884 | |
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| Bent County | 32 | 6 | 6 | 3.9 | 1,048 | |
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| Boulder County | 79 | 12 | 37 | 3.9 | 53,942 | |
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| Broomfield County | 77 | 11 | 36 | 3.9 | 11,901 | |
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| Chaffee County | 30 | 6 | 6 | 3.9 | 5,307 | |
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| Cheyenne County | 14 | 5 | 0 | 4.3 | 342 | |
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| Clear Creek County | 68 | 9 | 30 | 3.9 | 2,102 | |
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| Conejos County | 39 | 6 | 8 | 3.8 | 1,549 | |
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| Costilla County | 33 | 6 | 6 | 3.9 | 1,029 | |
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| Crowley County | 44 | 7 | 11 | 3.8 | 874 | |
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| Custer County | 43 | 7 | 11 | 3.8 | 1,738 | |
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| Delta County | 41 | 7 | 15 | 3.7 | 8,973 | |
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| Denver County | 81 | 13 | 38 | 3.9 | 89,711 | |
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| Dolores County | 21 | 5 | 3 | 3.7 | 777 | |
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| Douglas County | 80 | 11 | 34 | 4.0 | 52,473 | |
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| Eagle County | 14 | 5 | 0 | 4.0 | 7,871 | |
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| El Paso County | 66 | 11 | 27 | 3.9 | 104,287 | |
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| Elbert County | 63 | 9 | 26 | 4.0 | 5,246 | |
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| Fremont County | 62 | 10 | 24 | 3.8 | 11,371 | |
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| Garfield County | 12 | 5 | 0 | 4.0 | 9,222 | |
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| Gilpin County | 58 | 9 | 20 | 4.0 | 1,315 | |
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| Grand County | 45 | 7 | 11 | 3.8 | 3,325 | |
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| Gunnison County | 27 | 6 | 5 | 3.8 | 2,603 | |
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| Hinsdale County | 27 | 6 | 5 | 3.8 | 311 | |
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| Huerfano County | 43 | 7 | 11 | 3.8 | 2,424 | |
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| Jackson County | 41 | 7 | 11 | 3.7 | 447 | |
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| Jefferson County | 82 | 13 | 39 | 3.9 | 103,643 | |
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| Kiowa County | 14 | 5 | 0 | 4.3 | 303 | |
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| Kit Carson County | 14 | 5 | 0 | 4.3 | 1,394 | |
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| La Plata County | 30 | 5 | 7 | 3.5 | 11,728 | |
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| Lake County | 24 | 5 | 3 | 3.9 | 1,116 | |
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| Larimer County | 67 | 11 | 26 | 3.9 | 63,764 | |
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| Las Animas County | 35 | 6 | 6 | 3.9 | 3,751 | |
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| Lincoln County | 41 | 6 | 9 | 3.8 | 1,014 | |
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| Logan County | 24 | 5 | 1 | 3.8 | 3,992 | |
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| Mesa County | 43 | 8 | 16 | 3.7 | 33,412 | |
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| Mineral County | 27 | 6 | 5 | 3.8 | 238 | |
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| Moffat County | 12 | 5 | 0 | 4.0 | 2,194 | |
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| Montezuma County | 19 | 5 | 4 | 3.4 | 6,599 | |
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| Montrose County | 29 | 6 | 6 | 3.7 | 11,400 | |
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| Morgan County | 38 | 7 | 8 | 3.7 | 4,736 | |
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| Otero County | 22 | 5 | 1 | 3.8 | 3,894 | |
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| Ouray County | 27 | 6 | 5 | 3.8 | 1,820 | |
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| Park County | 56 | 9 | 21 | 3.9 | 4,262 | |
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| Phillips County | 16 | 5 | 0 | 4.2 | 924 | |
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| Pitkin County | 18 | 6 | 2 | 4.0 | 3,875 | |
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| Prowers County | 14 | 5 | 0 | 4.3 | 2,241 | |
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| Pueblo County | 67 | 11 | 28 | 3.9 | 33,407 | |
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| Rio Blanco County | 21 | 5 | 3 | 3.7 | 1,143 | |
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| Rio Grande County | 19 | 5 | 3 | 3.7 | 2,578 | |
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| Routt County | 14 | 6 | 1 | 3.8 | 4,637 | |
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| Saguache County | 36 | 6 | 8 | 3.8 | 1,754 | |
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| San Juan County | 27 | 6 | 5 | 3.8 | 134 | |
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| San Miguel County | 21 | 5 | 3 | 3.7 | 1,481 | |
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| Sedgwick County | 14 | 5 | 0 | 4.3 | 557 | |
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| Summit County | 22 | 5 | 3 | 3.8 | 4,874 | |
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| Teller County | 66 | 11 | 28 | 3.9 | 6,224 | |
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| Washington County | 44 | 7 | 11 | 3.8 | 1,086 | |
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| Weld County | 70 | 11 | 28 | 3.9 | 45,353 | |
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| Yuma County | 16 | 5 | 0 | 4.2 | 1,840 | |
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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.