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

52.3%

36,148,847 of 69,101,555 eligibles

Highest Penetration

1005073.2%

Connecticut

Lowest Penetration

0.2%

Guam

States Tracked

incl. territories

State-by-State Penetration

State	Code	Eligibles	MA Enrolled	Penetration %	Counties
Connecticut	CT	41	412,080	1005073.2%	7
Puerto Rico	PR	800,173	680,980	85.1%	78
Michigan	MI	2,326,939	1,481,896	63.7%	83
Alabama	AL	1,145,044	705,350	61.6%	67
Rhode Island	RI	252,990	151,345	59.8%	5
Maine	ME	390,866	230,286	58.9%	16
North Carolina	NC	2,325,067	1,349,978	58.1%	100
Louisiana	LA	973,985	561,463	57.6%	64
Florida	FL	5,338,593	3,069,053	57.5%	67
Wisconsin	WI	1,375,254	790,439	57.5%	72
Minnesota	MN	1,206,549	685,105	56.8%	87
Ohio	OH	2,629,927	1,493,052	56.8%	88
West Virginia	WV	457,916	259,886	56.8%	55
Georgia	GA	2,032,412	1,143,578	56.3%	159
Kentucky	KY	1,011,514	561,623	55.5%	120
Utah	UT	490,493	270,863	55.2%	29
Texas	TX	5,020,373	2,761,103	55.0%	254
Missouri	MO	1,373,386	750,449	54.6%	115
Pennsylvania	PA	3,042,923	1,661,694	54.6%	67
Oregon	OR	972,827	525,161	54.0%	36
Tennessee	TN	1,530,082	822,667	53.8%	95
New York	NY	4,062,459	2,180,620	53.7%	62
Hawaii	HI	316,785	169,318	53.4%	5
Colorado	CO	1,089,939	569,418	52.2%	64
Nevada	NV	630,405	329,219	52.2%	17
Arizona	AZ	1,559,654	807,402	51.8%	15
California	CA	7,252,077	3,736,172	51.5%	58
Indiana	IN	1,426,704	731,522	51.3%	92
New Mexico	NM	477,647	242,399	50.7%	33
Washington	WA	1,584,088	789,022	49.8%	39
Arkansas	AR	693,681	328,039	47.3%	75
South Carolina	SC	1,287,108	602,601	46.8%	46
Idaho	ID	416,509	191,291	45.9%	44
Mississippi	MS	660,097	298,136	45.2%	82
Illinois	IL	2,491,521	1,095,554	44.0%	102
Oklahoma	OK	830,903	353,584	42.6%	77
New Jersey	NJ	1,844,799	764,623	41.4%	21
Virginia	VA	1,758,595	697,183	39.6%	133
Iowa	IA	709,805	267,823	37.7%	99
Massachusetts	MA	1,517,820	541,869	35.7%	14
North Dakota	ND	154,451	54,658	35.4%	53
South Dakota	SD	207,054	72,894	35.2%	66
Nebraska	NE	398,952	136,659	34.3%	93
Kansas	KS	610,249	204,527	33.5%	105
Delaware	DE	258,535	84,501	32.7%	3
New Hampshire	NH	361,198	111,652	30.9%	10
Montana	MT	272,762	80,964	29.7%	56
Maryland	MD	1,200,276	298,364	24.9%	24
Wyoming	WY	133,209	19,876	14.9%	23
Vermont	VT	170,644	20,796	12.2%	14
American Samoa	AS	4,923	63	1.3%	1
Guam	GU	21,352	47	0.2%	1

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