Medicare Advantage · UnitedHealth · enrollment Oct 2026
UnitedHealth: 7.64M Medicare Advantage members in 49 states, leading 22.
UnitedHealth Group, Inc., shown as UnitedHealth, holds 25.5% of the country’s visible Medicare Advantage members, 1st among 165 carriers. Its largest state is Texas with 981,770 members and 43.3% share. It leads Texas, North Carolina, Washington, Ohio, Missouri, Arizona and 16 more. Over twelve months it grew in 10 states and shrank in 39.
Visible members
7.64M
Oct 2026
National share
25.5%
1st of 165
States
49
914 plans with members
States led
22
first by visible members
Growing in
10
states, twelve months
Shrinking in
39
states, twelve months
UnitedHealth in every state it sells in
Largest state first. Rank is among the carriers with visible members in the state; counties led counts counties where the carrier has the most visible members and another carrier is visible. A state with a link has a page on UnitedHealth’s position there.
| State | Members | Share | Rank | Twelve months | Counties led | Rating |
|---|---|---|---|---|---|---|
| Texas | 981,770 | 43.3% | 1 of 23 | −4.8% | 169 | 3.85 |
| Florida | 805,168 | 28.6% | 2 of 23 | −0.1% | 26 | 3.95 |
| North Carolina | 388,989 | 35.5% | 1 of 14 | −6.3% | 69 | 3.99 |
| New York | 320,650 | 17.4% | 2 of 22 | −18.8% | 13 | 3.75 |
| Washington | 320,394 | 48.0% | 1 of 14 | +1.7% | 17 | 3.72 |
| Ohio | 270,884 | 22.2% | 1 of 19 | +1.0% | 19 | 3.99 |
| Missouri | 266,405 | 41.3% | 1 of 12 | −9.1% | 91 | 3.74 |
| Arizona | 256,298 | 36.2% | 1 of 18 | −11.9% | 7 | 3.87 |
| California | 242,012 | 8.2% | 3 of 37 | −27.6% | 4 | 3.00 |
| Georgia | 222,503 | 24.4% | 2 of 13 | −13.2% | 79 | 3.51 |
| Indiana | 220,241 | 35.6% | 1 of 12 | −1.4% | 49 | 3.78 |
| Wisconsin | 215,517 | 33.0% | 1 of 15 | −14.2% | 21 | 3.78 |
| Tennessee | 210,499 | 28.1% | 2 of 12 | −5.9% | 28 | 3.65 |
| Colorado | 198,040 | 42.5% | 1 of 11 | −10.4% | 15 | 3.94 |
| Louisiana | 176,936 | 36.1% | 2 of 9 | −3.9% | 14 | 3.48 |
| New Jersey | 176,506 | 33.5% | 1 of 12 | −8.9% | 13 | 3.63 |
| Illinois | 169,348 | 20.9% | 3 of 11 | −0.8% | 32 | 3.98 |
| Virginia | 161,637 | 27.0% | 2 of 10 | +5.7% | 40 | 3.94 |
| Alabama | 147,691 | 26.4% | 1 of 8 | −11.8% | 35 | 3.51 |
| Oregon | 142,624 | 30.6% | 1 of 15 | +14.8% | 7 | 3.73 |
| South Carolina | 140,986 | 25.6% | 2 of 13 | −23.5% | 20 | 4.27 |
| Oklahoma | 128,571 | 40.7% | 1 of 9 | −20.2% | 43 | 3.90 |
| Utah | 121,927 | 47.0% | 1 of 9 | −2.8% | 21 | 4.07 |
| Pennsylvania | 115,916 | 8.3% | 5 of 17 | +1.4% | 1 | 3.76 |
| Arkansas | 106,105 | 36.5% | 2 of 9 | −7.1% | 49 | 3.88 |
| Connecticut | 100,094 | 29.6% | 2 of 9 | −27.0% | 2 | 4.09 |
| Massachusetts | 94,148 | 19.4% | 2 of 13 | −3.4% | 3 | 3.87 |
| Nevada | 90,168 | 29.3% | 2 of 14 | −6.9% | 0 | 4.00 |
| Idaho | 74,701 | 41.9% | 1 of 7 | +6.0% | 29 | 4.03 |
| New Mexico | 70,425 | 34.2% | 1 of 8 | +7.0% | 15 | 3.73 |
| Mississippi | 69,929 | 24.8% | 2 of 10 | −3.6% | 19 | 3.77 |
| Kansas | 67,583 | 37.5% | 1 of 9 | −8.2% | 42 | 3.67 |
| Michigan | 63,523 | 6.6% | 6 of 16 | −13.5% | 0 | 3.09 |
| Kentucky | 60,142 | 14.8% | 3 of 10 | −6.8% | 2 | 3.49 |
| Iowa | 55,635 | 24.7% | 2 of 13 | −38.5% | 15 | 3.73 |
| Minnesota | 49,661 | 9.0% | 4 of 11 | −30.3% | 4 | 4.50 |
| Hawaii | 49,285 | 36.0% | 1 of 7 | −2.9% | 2 | 4.00 |
| Maine | 48,761 | 24.4% | 2 of 6 | +6.6% | 5 | 4.43 |
| Nebraska | 46,845 | 39.4% | 1 of 9 | −19.6% | 32 | 3.45 |
| Rhode Island | 41,852 | 29.7% | 2 of 5 | −11.6% | 0 | 3.81 |
| West Virginia | 30,002 | 17.2% | 3 of 8 | −9.9% | 0 | 3.84 |
| Delaware | 27,829 | 41.6% | 1 of 8 | +27.2% | 3 | 4.01 |
| New Hampshire | 27,403 | 32.7% | 2 of 5 | −27.9% | 2 | 4.09 |
| District of Columbia | 19,852 | 67.8% | 1 of 6 | −3.4% | 1 | 3.93 |
| Maryland | 18,367 | 8.6% | 4 of 10 | −66.1% | 0 | 3.32 |
| Wyoming | 7,175 | 45.8% | 1 of 3 | −64.7% | 2 | 3.60 |
| South Dakota | 6,227 | 14.1% | 3 of 5 | −40.9% | 4 | 4.50 |
| Montana | 5,102 | 7.0% | 3 of 4 | −56.8% | 0 | 3.29 |
| North Dakota | 4,661 | 15.8% | 3 of 5 | +3.1% | 7 | 4.50 |
Carrier Command · for Medicare Advantage plans
The read on UnitedHealth in every state is in Carrier Command.
Each state's position page on UnitedHealth: risk and rebate against the market, Stars levers, the election-period forecast, exits and the county standing, rebuilt every month.
Other carriers
The largest Medicare Advantage parents nationally, by visible members.
- Humana6.40M
- Aetna (CVS)2.80M
- Elevance1.50M
- Kaiser1.49M
- Centene883K
- Health Care Service Corporation779K
- Devoted530K
- SCAN Group460K
- Healthfirst, Inc.374K
- MHH Healthcare, L.P.346K
- Highmark Health318K
- Alignment Healthcare USA, LLC299K
- Lifetime Healthcare, Inc.296K
- Aware Integrated, Inc.288K
- Corewell Health257K
- UPMC Health System220K
- Molina219K
- BlueCross BlueShield of Tennessee216K
- Blue Cross Blue Shield of Michigan Mutual Ins. Co.211K
- Guidewell Mutual Holding Corporation203K
- CuraCor Solutions Corp.182K
- Clover Health Holdings, Inc.157K
- Independence Health Group, Inc.143K
- Point32Health, Inc.139K
How these numbers are made
- Members are visible members: CMS suppresses any plan-county cell of ten or fewer, so small counties undercount. Market share excludes employer group plans.
- Enrollment is Oct 2026. UnitedHealth is the parent organization UnitedHealth Group, Inc.; its plans may sell under other brand names in each state.
- A state's twelve-month change, counties led and rating come from that state's page and carry its vintages.
- Every figure comes from public CMS data as Livmor reads it, and the page is rebuilt when a new month posts. Livmor Carrier Command, public CMS data.