Free tool · public CMS data
Mississippi Medicare Advantage market share
In September 2026, 290,331 Mississippi Medicare beneficiaries were enrolled in a Medicare Advantage plan across 71 parent carriers and 82 counties, led by Humana Inc. with 43.5% of counted enrollment.
Data month
September 2026
Advantage enrollees
290,331
+3.1% vs September 2025
Parent carriers
71
Advantage penetration
42.8%
CMS Medicare Monthly Enrollment, 2024
Carriers in Mississippi
CMS Monthly Enrollment by Contract/Plan/State/County (CPSC) · September 2026
| # | Parent organisation | Enrollees | Share | Counties | vs September 2025 |
|---|---|---|---|---|---|
| 1 | Humana Inc. | 126,240 | 43.5% | 82 | +8.9% |
| 2 | UnitedHealth Group, Inc. | 74,484 | 25.7% | 82 | -2.9% |
| 3 | CVS Health Corporation | 36,371 | 12.5% | 82 | -7.2% |
| 4 | Centene Corporation | 22,758 | 7.8% | 82 | +6.6% |
| 5 | Health Care Service Corporation | 14,283 | 4.9% | 82 | -1.1% |
| 6 | Devoted Health, Inc. | 9,015 | 3.1% | 34 | +369.8% |
| 7 | BlueCross BlueShield of Alabama | 4,570 | 1.6% | 82 | -8.6% |
| 8 | Elevance Health, Inc. | 1,153 | 0.4% | 82 | +1.9% |
| 9 | Mitchell Family Office | 716 | 0.2% | 39 | +13.7% |
| 10 | Zing Health Consolidator, Inc | 321 | 0.1% | 5 | +72.6% |
| 11 | Singh Holdings LLC | 257 | 0.1% | 74 | +394.2% |
| 12 | Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 97 | 0.0% | 82 | -12.6% |
| 13 | Louisiana Health Service & Indemnity Company | 39 | 0.0% | 82 | -63.2% |
| 14 | BlueCross BlueShield of Tennessee | 27 | 0.0% | 82 | -99.4% |
| 15 | Alignment Healthcare USA, LLC | 0 | 0.0% | 82 | — |
| 16 | Allina Health and Aetna Insurance Holding Company | 0 | 0.0% | 82 | — |
| 17 | Athena Healthcare Holdings, LLC | 0 | 0.0% | 1 | — |
| 18 | Aultman Health Foundation | 0 | 0.0% | 82 | — |
| 19 | Aware Integrated, Inc. | 0 | 0.0% | 82 | — |
| 20 | Baystate Health, Inc. | 0 | 0.0% | 82 | — |
| 21 | Blue Cross & Blue Shield of Rhode Island | 0 | 0.0% | 82 | — |
| 22 | Blue Cross and Blue Shield of Massachusetts, Inc. | 0 | 0.0% | 82 | — |
| 23 | Blue Cross Blue Shield of Kansas | 0 | 0.0% | 82 | — |
| 24 | Blue Cross Blue Shield of Nebraska | 0 | 0.0% | 82 | — |
| 25 | BlueCross BlueShield of South Carolina (BCBSSC) | 0 | 0.0% | 82 | — |
| 26 | California Physicians' Service | 0 | 0.0% | 82 | — |
| 27 | Cambia Health Solutions, Inc. | 0 | 0.0% | 82 | — |
| 28 | CAPITAL BLUE CROSS | 0 | 0.0% | 82 | — |
| 29 | CareFirst, Inc. | 0 | 0.0% | 82 | — |
| 30 | CHRISTUS Health | 0 | 0.0% | 1 | — |
| 31 | Community Health Group | 0 | 0.0% | 1 | — |
| 32 | Contra Costa Health Services | 0 | 0.0% | 1 | — |
| 33 | Corewell Health | 0 | 0.0% | 82 | — |
| 34 | CuraCor Solutions Corp. | 0 | 0.0% | 82 | — |
| 35 | Curana Health Holdings, LLC | 0 | 0.0% | 2 | — |
| 36 | EmblemHealth, Inc. | 0 | 0.0% | 82 | — |
| 37 | Fallon Community Health Plan, Inc. | 0 | 0.0% | 82 | — |
| 38 | Fenyx Health Holdings, Inc. | 0 | 0.0% | 82 | — |
| 39 | First Sacramento Capital Funding LLC | 0 | 0.0% | 1 | — |
| 40 | Gemstone Holdings, Inc. | 0 | 0.0% | 1 | — |
| 41 | General Catalyst Group Management Holdings LP | 0 | 0.0% | 82 | — |
| 42 | Guidewell Mutual Holding Corporation | 0 | 0.0% | 82 | — |
| 43 | Hawaii Medical Service Association | 0 | 0.0% | 82 | — |
| 44 | Healthfirst, Inc. | 0 | 0.0% | 82 | — |
| 45 | HealthPartners, Inc. | 0 | 0.0% | 82 | — |
| 46 | Henry Ford Health System | 0 | 0.0% | 82 | — |
| 47 | Highmark Health | 0 | 0.0% | 82 | — |
| 48 | Horizon Mutual Holdings, Inc | 0 | 0.0% | 82 | — |
| 49 | Imperial Health Plan of California | 0 | 0.0% | 1 | — |
| 50 | Independence Health Group, Inc. | 0 | 0.0% | 82 | — |
| 51 | Independent Health Association, Inc. | 0 | 0.0% | 82 | — |
| 52 | Kaiser Foundation Health Plan, Inc. | 0 | 0.0% | 5 | — |
| 53 | Lifetime Healthcare, Inc. | 0 | 0.0% | 82 | — |
| 54 | Local Initiative Health Authority for LA County | 0 | 0.0% | 1 | — |
| 55 | Lumeris Group Holdings Corporation | 0 | 0.0% | 1 | — |
| 56 | Martin's Point Health Care, Inc. | 0 | 0.0% | 82 | — |
| 57 | Medica Holding Company | 0 | 0.0% | 82 | — |
| 58 | MEDICAL MUTUAL OF OHIO | 0 | 0.0% | 82 | — |
| 59 | Memorial Hermann Health System | 0 | 0.0% | 1 | — |
| 60 | MHH Healthcare, L.P. | 0 | 0.0% | 1 | — |
| 61 | Molina Healthcare, Inc. | 0 | 0.0% | 18 | — |
| 62 | MVP Health Care, Inc. | 0 | 0.0% | 82 | — |
| 63 | Network Health, Inc. | 0 | 0.0% | 82 | — |
| 64 | PacificSource | 0 | 0.0% | 1 | — |
| 65 | Presbyterian Healthcare Services | 0 | 0.0% | 1 | — |
| 66 | SCAN Group | 0 | 0.0% | 4 | — |
| 67 | Sharp Healthcare | 0 | 0.0% | 1 | — |
| 68 | The Health Plan of West Virginia, Inc. | 0 | 0.0% | 82 | — |
| 69 | Trinity Health Corporation | 0 | 0.0% | 3 | — |
| 70 | UPMC Health System | 0 | 0.0% | 82 | — |
| 71 | USAble Mutual Insurance Company | 0 | 0.0% | 82 | — |
County view
Leading carrier and Advantage enrollment in each Mississippi county. Penetration is from CMS Medicare Monthly Enrollment, 2024.
| County | Advantage enrollees | Leading carrier | Leader share | Carriers | Penetration |
|---|---|---|---|---|---|
| Hinds | 25,076 | Humana Inc. | 39.6% | 54 | 52.2% |
| Harrison | 23,519 | Humana Inc. | 58.0% | 55 | 47.1% |
| Jackson | 16,303 | Humana Inc. | 49.9% | 54 | 48.5% |
| DeSoto | 12,601 | Humana Inc. | 51.1% | 55 | 36.0% |
| Rankin | 10,872 | Humana Inc. | 41.0% | 52 | 34.0% |
| Pearl River | 7,837 | Humana Inc. | 70.7% | 52 | 51.9% |
| Forrest | 7,810 | Humana Inc. | 49.6% | 50 | 48.5% |
| Madison | 7,640 | Humana Inc. | 40.5% | 52 | 32.8% |
| Jones | 6,988 | Humana Inc. | 49.0% | 53 | 44.0% |
| Lee | 6,786 | CVS Health Corporation | 67.2% | 51 | 34.3% |
| Lauderdale | 6,712 | Humana Inc. | 45.6% | 50 | 39.5% |
| Hancock | 6,606 | Humana Inc. | 59.3% | 51 | 55.3% |
| Washington | 5,796 | UnitedHealth Group, Inc. | 52.1% | 48 | 50.7% |
| Pike | 5,045 | Humana Inc. | 70.5% | 55 | 50.5% |
| Lowndes | 4,831 | CVS Health Corporation | 86.5% | 50 | 35.8% |
| Lamar | 4,513 | Humana Inc. | 53.6% | 49 | 40.8% |
| Warren | 4,480 | UnitedHealth Group, Inc. | 39.7% | 51 | 40.8% |
| Marshall | 4,412 | Humana Inc. | 37.0% | 53 | 48.1% |
| Panola | 3,851 | Humana Inc. | 59.3% | 52 | 46.9% |
| Bolivar | 3,706 | Humana Inc. | 46.4% | 49 | 48.7% |
| Monroe | 3,569 | CVS Health Corporation | 59.0% | 50 | 36.1% |
| Copiah | 3,534 | Humana Inc. | 46.4% | 53 | 51.8% |
| Adams | 3,297 | Humana Inc. | 80.5% | 49 | 42.0% |
| Leflore | 3,109 | Humana Inc. | 53.2% | 51 | 47.7% |
| Marion | 3,086 | Humana Inc. | 63.3% | 50 | 50.1% |
| Lincoln | 2,935 | UnitedHealth Group, Inc. | 51.6% | 49 | 37.3% |
| Scott | 2,897 | Humana Inc. | 46.3% | 51 | 48.1% |
| Sunflower | 2,887 | Humana Inc. | 54.1% | 50 | 53.7% |
| George | 2,817 | Humana Inc. | 50.2% | 52 | 49.3% |
| Tate | 2,690 | Humana Inc. | 59.3% | 51 | 41.9% |
| Coahoma | 2,601 | Humana Inc. | 47.4% | 48 | 50.6% |
| Simpson | 2,599 | UnitedHealth Group, Inc. | 47.9% | 51 | 41.6% |
| Yazoo | 2,580 | UnitedHealth Group, Inc. | 36.6% | 52 | 47.6% |
| Holmes | 2,562 | UnitedHealth Group, Inc. | 43.1% | 51 | 59.3% |
| Oktibbeha | 2,521 | CVS Health Corporation | 60.1% | 49 | 32.7% |
| Covington | 2,497 | Humana Inc. | 49.0% | 50 | 51.6% |
| Pontotoc | 2,364 | CVS Health Corporation | 67.0% | 49 | 33.7% |
| Jasper | 2,311 | Humana Inc. | 57.6% | 49 | 51.8% |
| Wayne | 2,306 | Humana Inc. | 56.5% | 50 | 47.0% |
| Clay | 2,297 | CVS Health Corporation | 73.2% | 50 | 45.4% |
| Neshoba | 2,270 | UnitedHealth Group, Inc. | 51.2% | 51 | 36.3% |
| Stone | 2,252 | Humana Inc. | 62.0% | 53 | 51.9% |
| Leake | 2,133 | Humana Inc. | 42.4% | 52 | 45.3% |
| Union | 2,132 | CVS Health Corporation | 52.6% | 49 | 30.8% |
| Chickasaw | 2,111 | CVS Health Corporation | 71.4% | 49 | 48.2% |
| Grenada | 2,097 | UnitedHealth Group, Inc. | 44.6% | 50 | 37.5% |
| Attala | 2,070 | Humana Inc. | 51.4% | 49 | 46.1% |
| Alcorn | 2,046 | UnitedHealth Group, Inc. | 46.7% | 50 | 21.6% |
| Lafayette | 2,028 | Humana Inc. | 48.5% | 50 | 21.5% |
| Clarke | 1,890 | Humana Inc. | 43.6% | 50 | 44.6% |
| Winston | 1,844 | Humana Inc. | 55.6% | 49 | 38.2% |
| Newton | 1,831 | UnitedHealth Group, Inc. | 63.6% | 50 | 38.6% |
| Prentiss | 1,749 | CVS Health Corporation | 62.5% | 50 | 27.7% |
| Tippah | 1,730 | CVS Health Corporation | 42.2% | 50 | 32.1% |
| Itawamba | 1,710 | CVS Health Corporation | 61.9% | 50 | 30.2% |
| Yalobusha | 1,611 | Humana Inc. | 54.4% | 50 | 38.6% |
| Walthall | 1,601 | Humana Inc. | 69.0% | 49 | 46.3% |
| Jefferson Davis | 1,591 | Humana Inc. | 51.7% | 49 | 51.6% |
| Amite | 1,420 | Humana Inc. | 45.1% | 50 | 43.8% |
| Tallahatchie | 1,406 | Humana Inc. | 50.7% | 49 | 50.1% |
| Perry | 1,400 | Humana Inc. | 47.5% | 51 | 46.9% |
| Lawrence | 1,388 | UnitedHealth Group, Inc. | 41.3% | 50 | 44.4% |
| Noxubee | 1,363 | UnitedHealth Group, Inc. | 51.4% | 49 | 52.0% |
| Calhoun | 1,330 | CVS Health Corporation | 46.5% | 50 | 34.4% |
| Tishomingo | 1,310 | CVS Health Corporation | 44.4% | 51 | 24.0% |
| Smith | 1,250 | UnitedHealth Group, Inc. | 45.0% | 49 | 40.2% |
| Claiborne | 1,158 | UnitedHealth Group, Inc. | 45.9% | 49 | 58.0% |
| Greene | 1,107 | Humana Inc. | 57.8% | 50 | 48.2% |
| Wilkinson | 1,079 | Humana Inc. | 83.1% | 48 | 54.1% |
| Humphreys | 1,075 | Humana Inc. | 58.6% | 49 | 55.8% |
| Kemper | 1,060 | UnitedHealth Group, Inc. | 44.9% | 49 | 46.9% |
| Montgomery | 1,055 | UnitedHealth Group, Inc. | 49.5% | 50 | 37.5% |
| Tunica | 1,048 | Humana Inc. | 56.2% | 51 | 61.0% |
| Jefferson | 993 | Humana Inc. | 50.4% | 49 | 56.2% |
| Webster | 975 | CVS Health Corporation | 61.7% | 50 | 33.9% |
| Quitman | 858 | Humana Inc. | 56.6% | 49 | 54.8% |
| Carroll | 828 | UnitedHealth Group, Inc. | 58.3% | 49 | 34.3% |
| Benton | 823 | Humana Inc. | 41.6% | 50 | 41.9% |
| Franklin | 676 | Humana Inc. | 63.8% | 49 | 34.1% |
| Choctaw | 672 | UnitedHealth Group, Inc. | 35.4% | 50 | 32.9% |
| Sharkey | 493 | UnitedHealth Group, Inc. | 51.9% | 51 | 50.3% |
| Issaquena | 25 | Humana Inc. | 52.0% | 51 | 42.0% |
What is missing
CMS suppresses any plan-county cell with fewer than 11 enrollees. Those enrollees are missing from these counts, so every figure is a floor, not an exact total.
What is counted
Counts cover Medicare Advantage contracts only (Local CCP, Regional CCP, PFFS and MSA). Standalone Part D drug plans, cost plans, HCPP and PACE contracts are excluded.
Source: CMS Monthly Enrollment by Contract/Plan/State/County (CPSC).