Medicare gives people a choice: stay in Original Medicare or join a Medicare Advantage (or another Medicare health) plan run by a private insurer. This page shows how many people made each choice in every state and territory, using enrollment counts from the Centers for Medicare & Medicaid Services (CMS) “Medicare Monthly Enrollment” dataset for 2025, retrieved on October 13, 2026.
Nationwide in 2025: CMS counts 69,476,456 people with Medicare. 34,133,868 (49.1%) were in Original Medicare and 35,342,588 (50.9%) were in Medicare Advantage or another Medicare health plan.
Look up your state
Every state and territory, by share in Medicare Advantage
| State | People with Medicare | Original Medicare | Medicare Advantage or other plan | Share in MA / other |
|---|---|---|---|---|
| Puerto Rico | 779,295 | 109,647 | 669,648 | 85.9% |
| Michigan | 2,293,576 | 853,412 | 1,440,164 | 62.8% |
| Alabama | 1,133,992 | 448,840 | 685,152 | 60.4% |
| Minnesota | 1,183,036 | 472,016 | 711,021 | 60.1% |
| Rhode Island | 248,568 | 100,282 | 148,286 | 59.7% |
| Maine | 385,690 | 159,585 | 226,105 | 58.6% |
| Wisconsin | 1,348,425 | 570,197 | 778,228 | 57.7% |
| Connecticut | 767,433 | 328,475 | 438,958 | 57.2% |
| North Carolina | 2,282,725 | 984,026 | 1,298,699 | 56.9% |
| Ohio | 2,581,510 | 1,117,758 | 1,463,753 | 56.7% |
| Florida | 5,242,870 | 2,273,334 | 2,969,536 | 56.6% |
| Louisiana | 955,821 | 414,809 | 541,013 | 56.6% |
| Georgia | 1,994,391 | 890,263 | 1,104,129 | 55.4% |
| West Virginia | 456,398 | 204,132 | 252,267 | 55.3% |
| Kentucky | 1,001,470 | 456,507 | 544,964 | 54.4% |
| Oregon | 962,060 | 439,839 | 522,221 | 54.3% |
| Pennsylvania | 3,000,965 | 1,375,490 | 1,625,475 | 54.2% |
| Texas | 4,914,044 | 2,259,660 | 2,654,383 | 54.0% |
| Missouri | 1,354,619 | 625,794 | 728,826 | 53.8% |
| Utah | 480,007 | 222,782 | 257,224 | 53.6% |
| Hawaii | 312,517 | 145,552 | 166,965 | 53.4% |
| Tennessee | 1,510,306 | 710,017 | 800,289 | 53.0% |
| New York | 3,994,367 | 1,879,813 | 2,114,554 | 52.9% |
| Colorado | 1,066,219 | 504,868 | 561,351 | 52.6% |
| Nevada | 617,898 | 299,680 | 318,218 | 51.5% |
| California | 7,108,792 | 3,468,354 | 3,640,439 | 51.2% |
| Arizona | 1,535,475 | 752,253 | 783,222 | 51.0% |
| Indiana | 1,404,690 | 697,650 | 707,040 | 50.3% |
| Idaho | 407,087 | 203,778 | 203,309 | 49.9% |
| New Mexico | 470,656 | 236,707 | 233,949 | 49.7% |
| Washington | 1,558,503 | 791,403 | 767,100 | 49.2% |
| Arkansas | 687,528 | 369,337 | 318,190 | 46.3% |
| South Carolina | 1,263,550 | 680,742 | 582,807 | 46.1% |
| Mississippi | 651,475 | 364,049 | 287,425 | 44.1% |
| Illinois | 2,452,877 | 1,386,935 | 1,065,942 | 43.5% |
| Oklahoma | 820,448 | 480,585 | 339,863 | 41.4% |
| New Jersey | 1,809,250 | 1,069,834 | 739,415 | 40.9% |
| Virginia | 1,728,531 | 1,053,928 | 674,603 | 39.0% |
| Iowa | 699,242 | 432,541 | 266,701 | 38.1% |
| South Dakota | 202,669 | 126,873 | 75,797 | 37.4% |
| Massachusetts | 1,491,093 | 955,765 | 535,328 | 35.9% |
| North Dakota | 151,412 | 97,586 | 53,827 | 35.6% |
| New Hampshire | 354,126 | 228,378 | 125,748 | 35.5% |
| District of Columbia | 97,257 | 63,870 | 33,387 | 34.3% |
| Nebraska | 392,477 | 259,093 | 133,384 | 34.0% |
| Kansas | 601,285 | 402,867 | 198,418 | 33.0% |
| Delaware | 253,089 | 170,308 | 82,781 | 32.7% |
| Vermont | 168,122 | 116,394 | 51,728 | 30.8% |
| Virgin Islands | 20,979 | 14,625 | 6,354 | 30.3% |
| Montana | 267,875 | 187,653 | 80,222 | 29.9% |
| Maryland | 1,176,384 | 878,678 | 297,706 | 25.3% |
| Wyoming | 130,603 | 104,923 | 25,680 | 19.7% |
| American Samoa | 4,488 | 4,035 | 452 | 10.1% |
| Alaska | 121,467 | 117,848 | 3,619 | 3.0% |
| Northern Mariana Islands | 3,793 | 3,740 | 53 | 1.4% |
| Guam | 20,493 | 20,287 | 206 | 1.0% |
Source: CMS, Medicare Monthly Enrollment, annual figures for 2025. “Medicare Advantage or other plan” is CMS’s “MA and other” category, which includes Medicare Advantage and other Medicare health plans.
How to use this
Where you live affects which plans you can choose, because Medicare Advantage plans are offered county by county and the choices, costs and provider networks differ. A high or low share in your state is not advice to choose one over the other. It is context: what your neighbors chose. Compare the plans actually available where you live, check that your doctors and prescriptions are covered, and use the Annual Enrollment Period countdown to know when you can change.
Figures are CMS counts for the year shown and are updated periodically. General information, not insurance advice.