Market Penetration

MA Penetration by State

Medicare Advantage's share of all Medicare-eligible beneficiaries, by state. Higher penetration means most Medicare beneficiaries have already chosen MA over traditional fee-for-service Medicare — i.e. less greenfield runway for further MA market expansion.

National Penetration

51.7%

35,802,200 of 69,236,969 eligibles

Highest Penetration

85.2%

Puerto Rico

Lowest Penetration

0.2%

Guam

States Tracked

incl. territories

State-by-State Penetration

State	Code	Eligibles	MA Enrolled	Penetration %	Counties
Puerto Rico	PR	800,846	682,072	85.2%	78
Michigan	MI	2,330,554	1,484,034	63.7%	83
Alabama	AL	1,146,520	706,391	61.6%	67
Rhode Island	RI	253,591	151,577	59.8%	5
Maine	ME	391,686	230,688	58.9%	16
North Carolina	NC	2,331,064	1,352,053	58.0%	100
Louisiana	LA	975,654	563,090	57.7%	64
Florida	FL	5,349,498	3,074,489	57.5%	67
Wisconsin	WI	1,378,172	791,456	57.4%	72
Minnesota	MN	1,209,254	688,153	56.9%	87
Ohio	OH	2,636,528	1,497,147	56.8%	88
West Virginia	WV	458,188	260,094	56.8%	55
Georgia	GA	2,036,757	1,146,557	56.3%	159
Kentucky	KY	1,012,834	562,671	55.6%	120
Utah	UT	491,637	271,425	55.2%	29
Texas	TX	5,034,092	2,767,258	55.0%	254
Missouri	MO	1,375,711	751,856	54.7%	115
Pennsylvania	PA	3,046,722	1,663,338	54.6%	67
Oregon	OR	974,351	525,228	53.9%	36
Tennessee	TN	1,532,665	823,562	53.7%	95
New York	NY	4,069,133	2,185,627	53.7%	62
Hawaii	HI	317,065	169,538	53.5%	5
Colorado	CO	1,092,630	570,239	52.2%	64
Nevada	NV	631,629	329,435	52.2%	17
Arizona	AZ	1,562,690	808,324	51.7%	15
California	CA	7,266,850	3,745,438	51.5%	58
Indiana	IN	1,429,450	732,341	51.2%	92
New Mexico	NM	478,072	242,603	50.7%	33
Washington	WA	1,586,931	789,770	49.8%	39
Arkansas	AR	694,457	328,491	47.3%	75
South Carolina	SC	1,290,501	604,163	46.8%	46
Idaho	ID	417,798	191,690	45.9%	44
Mississippi	MS	661,015	298,735	45.2%	82
Illinois	IL	2,495,995	1,097,538	44.0%	102
Oklahoma	OK	832,100	353,884	42.5%	77
New Jersey	NJ	1,848,867	765,976	41.4%	21
Virginia	VA	1,761,444	698,694	39.7%	133
Iowa	IA	711,081	268,108	37.7%	99
Massachusetts	MA	1,520,932	542,462	35.7%	14
North Dakota	ND	154,754	54,723	35.4%	53
South Dakota	SD	207,522	73,069	35.2%	66
Nebraska	NE	399,804	136,802	34.2%	93
Kansas	KS	611,382	204,698	33.5%	105
Delaware	DE	259,225	84,658	32.7%	3
New Hampshire	NH	362,131	111,702	30.8%	10
Montana	MT	273,324	81,014	29.6%	56
Maryland	MD	1,203,033	298,542	24.8%	24
Wyoming	WY	133,491	19,856	14.9%	23
Vermont	VT	170,972	20,838	12.2%	14
American Samoa	AS	4,945	60	1.2%	1
Guam	GU	21,422	43	0.2%	1

Penetration = MA enrolled ÷ total Medicare eligibles. Source: CMS Monthly MA State/County Penetration file.