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

51.6%

35,896,376 of 69,543,942 eligibles

Highest Penetration

85.1%

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	802,858	683,600	85.1%	78
Michigan	MI	2,339,304	1,486,251	63.5%	83
Alabama	AL	1,150,476	707,348	61.5%	67
Rhode Island	RI	254,747	151,882	59.6%	5
Maine	ME	393,040	231,172	58.8%	16
North Carolina	NC	2,342,852	1,355,989	57.9%	100
Louisiana	LA	979,487	563,351	57.5%	64
Florida	FL	5,376,986	3,081,343	57.3%	67
Wisconsin	WI	1,384,470	792,801	57.3%	72
Minnesota	MN	1,214,683	693,585	57.1%	87
Ohio	OH	2,647,377	1,501,980	56.7%	88
West Virginia	WV	459,251	259,864	56.6%	55
Georgia	GA	2,047,036	1,150,133	56.2%	159
Kentucky	KY	1,016,063	563,613	55.5%	120
Utah	UT	494,318	272,769	55.2%	29
Texas	TX	5,063,557	2,777,138	54.8%	254
Missouri	MO	1,381,155	753,478	54.6%	115
Pennsylvania	PA	3,056,975	1,664,437	54.4%	67
Oregon	OR	977,770	525,703	53.8%	36
New York	NY	4,084,861	2,191,558	53.7%	62
Tennessee	TN	1,539,671	825,588	53.6%	95
Hawaii	HI	318,145	169,726	53.3%	5
Colorado	CO	1,098,270	571,411	52.0%	64
Nevada	NV	634,856	330,074	52.0%	17
Arizona	AZ	1,569,690	809,779	51.6%	15
California	CA	7,301,183	3,761,611	51.5%	58
Indiana	IN	1,435,672	733,678	51.1%	92
New Mexico	NM	479,534	243,369	50.8%	33
Washington	WA	1,593,638	790,581	49.6%	39
Arkansas	AR	696,635	329,235	47.3%	75
South Carolina	SC	1,297,493	606,606	46.8%	46
Idaho	ID	420,240	192,412	45.8%	44
Mississippi	MS	663,373	299,586	45.2%	82
Illinois	IL	2,505,334	1,101,618	44.0%	102
Oklahoma	OK	835,109	354,567	42.5%	77
New Jersey	NJ	1,857,376	768,464	41.4%	21
Virginia	VA	1,769,503	700,335	39.6%	133
Iowa	IA	713,920	268,356	37.6%	99
Massachusetts	MA	1,527,562	543,667	35.6%	14
North Dakota	ND	155,405	54,707	35.2%	53
South Dakota	SD	208,654	73,154	35.1%	66
Nebraska	NE	401,520	136,808	34.1%	93
Kansas	KS	613,533	205,005	33.4%	105
Delaware	DE	260,862	85,047	32.6%	3
New Hampshire	NH	363,841	111,734	30.7%	10
Montana	MT	274,432	81,059	29.5%	56
Maryland	MD	1,209,085	299,433	24.8%	24
Wyoming	WY	134,038	19,830	14.8%	23
Vermont	VT	171,554	20,841	12.1%	14
American Samoa	AS	4,958	57	1.1%	1
Guam	GU	21,590	43	0.2%	1

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