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%

35,679,396 of 68,963,550 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	799,408	680,157	85.1%	78
Michigan	MI	2,322,372	1,480,187	63.7%	83
Alabama	AL	1,143,131	703,777	61.6%	67
Rhode Island	RI	252,383	151,354	60.0%	5
Maine	ME	390,151	229,987	58.9%	16
North Carolina	NC	2,319,444	1,347,214	58.1%	100
Louisiana	LA	972,359	561,224	57.7%	64
Wisconsin	WI	1,372,187	789,331	57.5%	72
Florida	FL	5,329,877	3,065,432	57.5%	67
Minnesota	MN	1,203,819	683,827	56.8%	87
Ohio	OH	2,624,677	1,490,859	56.8%	88
West Virginia	WV	457,516	259,734	56.8%	55
Georgia	GA	2,027,493	1,139,671	56.2%	159
Kentucky	KY	1,010,051	560,950	55.5%	120
Utah	UT	489,355	270,303	55.2%	29
Texas	TX	5,007,673	2,755,357	55.0%	254
Missouri	MO	1,371,007	749,628	54.7%	115
Pennsylvania	PA	3,037,916	1,660,384	54.7%	67
Oregon	OR	971,173	525,217	54.1%	36
Tennessee	TN	1,527,313	821,179	53.8%	95
New York	NY	4,054,714	2,175,947	53.7%	62
Hawaii	HI	316,321	168,270	53.2%	5
Nevada	NV	628,971	328,707	52.3%	17
Colorado	CO	1,087,672	567,899	52.2%	64
Arizona	AZ	1,556,904	806,344	51.8%	15
California	CA	7,236,180	3,729,096	51.5%	58
Indiana	IN	1,423,926	728,266	51.1%	92
New Mexico	NM	476,735	241,988	50.8%	33
Washington	WA	1,580,970	788,487	49.9%	39
Arkansas	AR	692,890	327,735	47.3%	75
South Carolina	SC	1,283,921	601,589	46.9%	46
Idaho	ID	415,291	191,094	46.0%	44
Mississippi	MS	659,218	297,858	45.2%	82
Illinois	IL	2,487,040	1,093,127	44.0%	102
Oklahoma	OK	829,501	353,257	42.6%	77
New Jersey	NJ	1,841,146	763,480	41.5%	21
Virginia	VA	1,754,870	696,283	39.7%	133
Iowa	IA	708,487	267,678	37.8%	99
Massachusetts	MA	1,514,394	542,413	35.8%	14
North Dakota	ND	154,052	54,609	35.4%	53
South Dakota	SD	206,573	72,819	35.3%	66
Nebraska	NE	398,188	136,602	34.3%	93
Kansas	KS	609,068	204,431	33.6%	105
Delaware	DE	257,749	84,361	32.7%	3
New Hampshire	NH	360,330	111,698	31.0%	10
Montana	MT	272,220	80,996	29.8%	56
Maryland	MD	1,197,387	297,791	24.9%	24
Wyoming	WY	132,933	19,877	15.0%	23
Vermont	VT	170,325	20,813	12.2%	14
American Samoa	AS	4,908	65	1.3%	1
Guam	GU	21,361	44	0.2%	1

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