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Medicare Advantage Enrollment Tracker

Medicare Advantage Enrollment by State

Members, 12-month change and share of the national total for each state, from the CMS county file for September 2026. Select a column heading to sort. Each state has its own page with a carrier view.

By Senior Deal Club Standards Desk · Data as of September 2026 · Editorial policy

Data as ofCMS public files, monthly snapshot

  • These totals include employer and union group plans.
    Why this matters

    The CMS contract and county files count group plans that retirees get through a former employer. They are not plans you can pick on your own. Counts here are larger than the individual-plan counts on county pages.

  • Alaska and Connecticut: no county-file rows after July 2026.
    Why this matters

    Alaska and Connecticut have no rows in the state file this tracker reads after July 2026. The contract file still lists them (September 2026: Alaska 2,273; Connecticut 446,529). This is a hole in one CMS file, not a fall in enrollment. The published national total falls 375,623 in August 2026; that drop is a gap in the source file, not a loss of members. The national line on these pages sums the 53 jurisdictions that report in every month, and those states show "no data after July 2026". Year over year, the panel reads +2.0% and the all-state contract file +2.0%.

  • Some months are missing from the source.
    Why this matters

    CMS did not publish every month. Lines break at a missing month instead of guessing a value. A dotted line, where shown, only joins the two sides.

All states

Members and 12-month change are from the county file and include employer group plans. The last column covers individual plans only.

County file · Sep 2026
CMS state, county and plan-type file (SCP). The same plans split by state and county, with employer and union group plans included. CMS hides counts of 10 or fewer.
Individual MA · Sep 2026
Individual Medicare Advantage plans (IND), from county data. Employer and union group plans are left out, so counts are smaller than in the other two files.
Medicare Advantage members by state, latest month in the county file
StateMembersData month12-month changeShare of nationalIndividual plans, 12 months
California3,750,935Sep 2026+2.2%10.5%+2.7%
Florida3,075,828Sep 2026+2.6%8.6%+3.0%
Texas2,769,561Sep 2026+3.5%7.7%+3.9%
New York2,185,784Sep 2026+2.3%6.1%+2.6%
Pennsylvania1,662,166Sep 2026+1.6%4.6%+2.2%
Ohio1,498,192Sep 2026+1.9%4.2%+2.7%
Michigan1,483,391Sep 2026+2.3%4.1%+3.9%
North Carolina1,352,457Sep 2026+3.5%3.8%+4.7%
Georgia1,147,478Sep 2026+3.0%3.2%+4.0%
Illinois1,098,001Sep 2026+1.9%3.1%+2.7%
Tennessee823,133Sep 2026+2.3%2.3%+2.6%
Arizona808,220Sep 2026+2.7%2.3%+3.3%
Wisconsin791,183Sep 2026+1.1%2.2%+1.3%
Washington789,538Sep 2026+2.2%2.2%+2.6%
New Jersey767,076Sep 2026+2.9%2.1%+4.3%
Missouri751,675Sep 2026+2.5%2.1%+3.0%
Indiana731,033Sep 2026+2.8%2.0%+3.7%
Alabama705,998Sep 2026+2.6%2.0%+3.2%
Virginia698,019Sep 2026+2.8%1.9%+3.7%
Minnesota691,471Sep 2026−3.6%1.9%-2.2%
Puerto Rico682,537Sep 2026+1.7%1.9%+0.0%
South Carolina604,600Sep 2026+3.1%1.7%+3.5%
Colorado569,968Sep 2026+0.9%1.6%+1.6%
Kentucky562,149Sep 2026+2.6%1.6%+3.2%
Louisiana561,672Sep 2026+3.0%1.6%+2.3%
Massachusetts542,576Sep 2026+0.6%1.5%+1.6%
Oregon525,060Sep 2026+0.2%1.5%+1.0%
Connecticut438,844Jul 2026−0.8%–+1.0%
Oklahoma353,617Sep 2026+3.4%1.0%+3.9%
Nevada329,516Sep 2026+2.8%0.9%+3.3%
Arkansas328,464Sep 2026+2.6%0.9%+3.1%
Maryland298,753Sep 2026+0.3%0.8%+0.7%
Mississippi298,465Sep 2026+3.3%0.8%+3.4%
Utah271,788Sep 2026+4.6%0.8%+4.8%
Iowa267,845Sep 2026−0.2%0.7%+1.4%
West Virginia259,313Sep 2026+2.7%0.7%+4.6%
New Mexico242,587Sep 2026+2.7%0.7%+3.3%
Maine230,715Sep 2026+1.4%0.6%+1.4%
Kansas204,187Sep 2026+2.5%0.6%+2.8%
Idaho191,821Sep 2026−6.0%0.5%-6.6%
Hawaii169,367Sep 2026+0.9%0.5%+1.1%
Rhode Island151,467Sep 2026+1.0%0.4%+1.3%
Nebraska136,453Sep 2026+1.9%0.4%+2.2%
New Hampshire111,701Sep 2026−11.2%0.3%-13.8%
Delaware84,844Sep 2026+2.7%0.2%+3.3%
Montana80,776Sep 2026+1.0%0.2%+2.4%
South Dakota72,849Sep 2026−3.6%0.2%-2.6%
North Dakota54,554Sep 2026+1.1%0.2%+2.2%
District of Columbia34,063Sep 2026+0.5%0.1%+0.7%
Vermont20,705Sep 2026−59.9%0.1%Plan ended
Wyoming19,691Sep 2026−21.6%0.1%-26.2%
U.S. Virgin Islands5,728Sep 2026+1.1%0.0%–
Alaska2,586Jul 2026−0.4%––
American Samoa59Sep 2026−18.1%0.0%–
Guam42Sep 2026+5.0%0.0%–
Northern Mariana Islands14Jan 2024–––

12-month change compares each state's latest month with the same month a year earlier. Vermont: the individual plan ended in many counties, so no percent is shown. Share of national is of the total for jurisdictions that report in every month. Territories can move by whole percents on a few members.

Change by state, individual plans

12-month change, individual plans

Blue fell, red rose. Vermont: plan ended, no percent shown. Select a tile for the state page.

Individual MA · Sep 2026
Individual Medicare Advantage plans (IND), from county data. Employer and union group plans are left out, so counts are smaller than in the other two files.
12-month change, individual plansTile map of US states and territories, one square per state. 51 places shown. Darker tiles mean higher 12-month change. The table lists every value.Alaska: no dataAKMaine: 1.4%ME1.4%Wisconsin: 1.3%WI1.3%Vermont: no dataVTNew Hampshire: -13.8%NH-13.8%Washington: 2.6%WA2.6%Idaho: -6.6%ID-6.6%Montana: 2.4%MT2.4%North Dakota: 2.2%ND2.2%Minnesota: -2.2%MN-2.2%Illinois: 2.7%IL2.7%Michigan: 3.9%MI3.9%New York: 2.6%NY2.6%Massachusetts: 1.6%MA1.6%Oregon: 1.0%OR1.0%Nevada: 3.3%NV3.3%Wyoming: -26.2%WY-26.2%South Dakota: -2.6%SD-2.6%Iowa: 1.4%IA1.4%Indiana: 3.7%IN3.7%Ohio: 2.7%OH2.7%Pennsylvania: 2.2%PA2.2%New Jersey: 4.3%NJ4.3%Connecticut: 1.0%CT1.0%Rhode Island: 1.3%RI1.3%California: 2.7%CA2.7%Utah: 4.8%UT4.8%Colorado: 1.6%CO1.6%Nebraska: 2.2%NE2.2%Missouri: 3.0%MO3.0%Kentucky: 3.2%KY3.2%West Virginia: 4.6%WV4.6%Virginia: 3.7%VA3.7%Maryland: 0.7%MD0.7%Delaware: 3.3%DE3.3%Arizona: 3.3%AZ3.3%New Mexico: 3.3%NM3.3%Kansas: 2.8%KS2.8%Arkansas: 3.1%AR3.1%Tennessee: 2.6%TN2.6%North Carolina: 4.7%NC4.7%South Carolina: 3.5%SC3.5%District of Columbia: 0.7%DC0.7%Oklahoma: 3.9%OK3.9%Louisiana: 2.3%LA2.3%Mississippi: 3.4%MS3.4%Alabama: 3.2%AL3.2%Georgia: 4.0%GA4.0%Hawaii: 1.1%HI1.1%Texas: 3.9%TX3.9%Florida: 3.0%FL3.0%Puerto Rico: 0.0%PR0.0%
12-month change, individual plansTile map of US states and territories, one square per state. 51 places shown. Darker tiles mean higher 12-month change. The table lists every value.Alaska: no dataAKMaine: 1.4%MEWisconsin: 1.3%WIVermont: no dataVTNew Hampshire: -13.8%NHWashington: 2.6%WAIdaho: -6.6%IDMontana: 2.4%MTNorth Dakota: 2.2%NDMinnesota: -2.2%MNIllinois: 2.7%ILMichigan: 3.9%MINew York: 2.6%NYMassachusetts: 1.6%MAOregon: 1.0%ORNevada: 3.3%NVWyoming: -26.2%WYSouth Dakota: -2.6%SDIowa: 1.4%IAIndiana: 3.7%INOhio: 2.7%OHPennsylvania: 2.2%PANew Jersey: 4.3%NJConnecticut: 1.0%CTRhode Island: 1.3%RICalifornia: 2.7%CAUtah: 4.8%UTColorado: 1.6%CONebraska: 2.2%NEMissouri: 3.0%MOKentucky: 3.2%KYWest Virginia: 4.6%WVVirginia: 3.7%VAMaryland: 0.7%MDDelaware: 3.3%DEArizona: 3.3%AZNew Mexico: 3.3%NMKansas: 2.8%KSArkansas: 3.1%ARTennessee: 2.6%TNNorth Carolina: 4.7%NCSouth Carolina: 3.5%SCDistrict of Columbia: 0.7%DCOklahoma: 3.9%OKLouisiana: 2.3%LAMississippi: 3.4%MSAlabama: 3.2%ALGeorgia: 4.0%GAHawaii: 1.1%HITexas: 3.9%TXFlorida: 3.0%FLPuerto Rico: 0.0%PR
View values for every state
12-month change, individual plans: by state
State12-month change
Alabama3.2%
Arkansas3.1%
Arizona3.3%
California2.7%
Colorado1.6%
Connecticut1.0%
District of Columbia0.7%
Delaware3.3%
Florida3.0%
Georgia4.0%
Hawaii1.1%
Iowa1.4%
Idaho-6.6%
Illinois2.7%
Indiana3.7%
Kansas2.8%
Kentucky3.2%
Louisiana2.3%
Massachusetts1.6%
Maryland0.7%
Maine1.4%
Michigan3.9%
Minnesota-2.2%
Missouri3.0%
Mississippi3.4%
Montana2.4%
North Carolina4.7%
North Dakota2.2%
Nebraska2.2%
New Hampshire-13.8%
New Jersey4.3%
New Mexico3.3%
Nevada3.3%
New York2.6%
Ohio2.7%
Oklahoma3.9%
Oregon1.0%
Pennsylvania2.2%
Puerto Rico0.0%
Rhode Island1.3%
South Carolina3.5%
South Dakota-2.6%
Tennessee2.6%
Texas3.9%
Utah4.8%
Virginia3.7%
Vermont–
Washington2.6%
Wisconsin1.3%
West Virginia4.6%
Wyoming-26.2%

Individual MA · Sep 2026. Employer group plans left out.

State pages

Select a state for its trend, carrier view and biggest counties. The line shows members by month.

Cite and download

Cite this page

Senior Deal Club Standards Desk. Medicare Advantage Enrollment by State, data as of September 2026. Source: CMS public enrollment files. https://www.seniordealclub.com/medicare-advantage/enrollment/states

Download states CSV

Data: CMS public enrollment files, in a monthly snapshot processed by TapQuality. Senior Deal Club is not affiliated with Medicare or any government agency.

These pages are educational. They are not plan advice. How the numbers are built · Editorial policy