Data

Ohio Medicare by the numbers

Name: Ohio Medicare by county
Creator: Benefits Life
License: https://www.usa.gov/government-works

2,635,104 Ohioans had Medicare in July 2026, 57% of them in Medicare Advantage or other health plans, according to CMS. For 2027, CMS lists 119 Medicare Advantage plans open to everyone in the state, with plans in every county, and at least 38,178 members whose plan ends December 31.

By the Benefits Life Editorial Team, licensed insurance agents · Reviewed November 13, 2026

2,635,104

people with Medicare

July 2026, CMS Medicare Monthly Enrollment

57%

in Medicare Advantage or other health plans

July 2026, CMS

119

Medicare Advantage plans open to everyone, 2027

CY2027 Landscape, CMS

38,178

members whose plan ends December 31, 2026

CMS Landscape, crosswalk and October 2026 enrollment

Statewide

2,635,104 people with Medicare in July 2026: 1,144,300 in Original Medicare and 1,490,804 in Medicare Advantage and other health plans. Source: CMS Medicare Monthly Enrollment (data.cms.gov).
1,479,081 Medicare Advantage members (HMO and PPO plans, special needs and employer plans included) in October 2026. Source: CMS Monthly Enrollment by Contract, Plan, State and County, October 2026. CMS hides counts of 10 or fewer, so the real total is a little higher.
119 Medicare Advantage plans open to everyone, 46 special needs plans and 20 companies in Ohio for 2027; 9 standalone Part D plans statewide. Source: CMS CY2027 Medicare Advantage and Part D Landscape file (November 2026 release).
All 88 counties have Medicare Advantage plans open to everyone in 2027: from 22 in Scioto County to 68 in Summit County. Source: CMS CY2027 Medicare Advantage and Part D Landscape file (November 2026 release).
38,178 members whose Medicare Advantage plan ends December 31, 2026: 8,484 because their company leaves their county and 29,694 because their plan ends where the company stays. Sources: CMS CY2027 Medicare Advantage and Part D Landscape file (November 2026 release), CMS 2027 Part C&D Plan Crosswalk (which 2026 plans renew, merge or end) and CMS Monthly Enrollment by Contract, Plan, State and County, October 2026. Details on plans ending in 2027.
Counties with the most people on Medicare: Cuyahoga (282,171), Franklin (212,013), Hamilton (165,367), Summit (127,341), Montgomery (121,093).

By county

Each county's numbers, with the same sources and dates as above. Download the table (CSV).

Medicare in Ohio's 88 counties. Select a column heading to sort.
County	Region	People with Medicare	Original Medicare	Medicare Advantage and other plans	Share in Medicare Advantage	Plans open to everyone, 2027	Special needs plans, 2027	Companies, 2027	Members whose plan ends
Adams County	Appalachian Ohio	7,560	3,213	4,347	57%	41	22	11	32
Allen County	Northwest Ohio	23,807	11,683	12,124	51%	45	25	12	172
Ashland County	Northeast Ohio	12,808	5,486	7,322	57%	54	23	12	87
Ashtabula County	Northeast Ohio	25,526	11,694	13,832	54%	39	21	11	29
Athens County	Appalachian Ohio	11,665	5,562	6,103	52%	23	18	8	1,181
Auglaize County	Northwest Ohio	11,419	7,116	4,303	38%	49	26	14	25
Belmont County	Appalachian Ohio	17,152	7,210	9,942	58%	35	19	9	148
Brown County	Appalachian Ohio	10,566	3,982	6,584	62%	56	23	13	35
Butler County	Cincinnati and Southwest Ohio	76,973	33,920	43,053	56%	58	27	15	565
Carroll County	Northeast Ohio	6,882	2,366	4,516	66%	54	23	12	20
Champaign County	Dayton and the Miami Valley	9,248	4,115	5,133	56%	49	25	13	40
Clark County	Dayton and the Miami Valley	32,190	12,748	19,442	60%	57	27	15	146
Clermont County	Cincinnati and Southwest Ohio	49,105	20,470	28,635	58%	57	24	14	224
Clinton County	Cincinnati and Southwest Ohio	10,284	4,507	5,777	56%	43	24	12	53
Columbiana County	Northeast Ohio	27,059	10,416	16,643	62%	62	26	14	200
Coshocton County	Appalachian Ohio	8,667	3,955	4,712	54%	31	22	11	246
Crawford County	Northwest Ohio	11,389	5,656	5,733	50%	27	21	10	1,440
Cuyahoga County	Northeast Ohio	282,171	119,882	162,289	58%	66	33	16	2,559
Darke County	Dayton and the Miami Valley	12,571	7,172	5,399	43%	49	25	13	20
Defiance County	Northwest Ohio	9,619	4,644	4,975	52%	36	25	11	218
Delaware County	Central Ohio	43,301	22,531	20,770	48%	55	23	12	295
Erie County	Northeast Ohio	21,619	10,886	10,733	50%	49	25	12	82
Fairfield County	Central Ohio	33,197	13,733	19,464	59%	53	26	13	207
Fayette County	Central Ohio	6,622	2,976	3,646	55%	35	22	11	566
Franklin County	Central Ohio	212,013	93,650	118,363	56%	55	24	12	1,532
Fulton County	Northwest Ohio	10,641	5,293	5,348	50%	58	23	13	23
Gallia County	Appalachian Ohio	7,530	3,547	3,983	53%	32	19	10	392
Geauga County	Northeast Ohio	24,130	12,123	12,007	50%	59	28	16	159
Greene County	Dayton and the Miami Valley	37,224	18,696	18,528	50%	57	26	14	172
Guernsey County	Appalachian Ohio	9,750	4,429	5,321	55%	39	22	11	195
Hamilton County	Cincinnati and Southwest Ohio	165,367	72,133	93,234	56%	55	27	14	993
Hancock County	Northwest Ohio	16,775	8,960	7,815	47%	43	23	10	99
Hardin County	Northwest Ohio	6,548	3,226	3,322	51%	41	25	11	16
Harrison County	Appalachian Ohio	4,018	1,666	2,352	59%	56	22	13	0
Henry County	Northwest Ohio	6,764	3,686	3,078	46%	33	24	12	201
Highland County	Appalachian Ohio	10,296	4,437	5,859	57%	34	22	11	1,070
Hocking County	Appalachian Ohio	6,847	3,064	3,783	55%	42	22	12	456
Holmes County	Appalachian Ohio	5,501	2,642	2,859	52%	55	24	13	0
Huron County	Northeast Ohio	14,814	7,521	7,293	49%	42	22	10	294
Jackson County	Appalachian Ohio	7,768	3,505	4,263	55%	38	22	11	642
Jefferson County	Appalachian Ohio	17,235	8,134	9,101	53%	40	19	10	31
Knox County	Central Ohio	15,004	6,769	8,235	55%	40	21	10	27
Lake County	Northeast Ohio	61,441	27,565	33,876	55%	63	29	15	380
Lawrence County	Appalachian Ohio	14,434	7,178	7,256	50%	31	18	8	53
Licking County	Central Ohio	39,555	17,254	22,301	56%	55	26	13	153
Logan County	Central Ohio	11,515	6,068	5,447	47%	45	23	11	52
Lorain County	Northeast Ohio	78,169	32,525	45,644	58%	62	31	16	771
Lucas County	Northwest Ohio	94,368	39,430	54,938	58%	58	29	14	996
Madison County	Central Ohio	9,909	4,172	5,737	58%	53	22	12	43
Mahoning County	Northeast Ohio	61,103	21,792	39,311	64%	65	29	17	333
Marion County	Central Ohio	15,154	6,260	8,894	59%	38	21	8	19
Medina County	Northeast Ohio	44,808	19,555	25,253	56%	65	28	16	613
Meigs County	Appalachian Ohio	5,757	2,410	3,347	58%	38	22	11	377
Mercer County	Northwest Ohio	9,923	6,733	3,190	32%	36	25	13	506
Miami County	Dayton and the Miami Valley	26,141	11,925	14,216	54%	57	25	13	41
Monroe County	Appalachian Ohio	3,752	1,550	2,202	59%	32	19	10	207
Montgomery County	Dayton and the Miami Valley	121,093	47,428	73,665	61%	58	29	15	327
Morgan County	Appalachian Ohio	3,520	1,414	2,106	60%	35	22	11	135
Morrow County	Central Ohio	7,786	3,524	4,262	55%	46	23	11	72
Muskingum County	Appalachian Ohio	22,239	9,427	12,812	58%	35	17	10	345
Noble County	Appalachian Ohio	2,718	1,294	1,424	52%	40	22	11	81
Ottawa County	Northwest Ohio	13,304	6,419	6,885	52%	54	25	14	42
Paulding County	Northwest Ohio	4,446	2,247	2,199	49%	34	24	11	61
Perry County	Appalachian Ohio	8,923	3,843	5,080	57%	42	22	12	415
Pickaway County	Central Ohio	12,242	4,939	7,303	60%	53	21	12	47
Pike County	Appalachian Ohio	6,316	2,852	3,464	55%	34	24	12	627
Portage County	Northeast Ohio	38,013	13,961	24,052	63%	64	28	16	622
Preble County	Dayton and the Miami Valley	10,270	4,547	5,723	56%	49	25	13	20
Putnam County	Northwest Ohio	8,176	5,074	3,102	38%	45	23	11	27
Richland County	Northeast Ohio	30,800	14,176	16,624	54%	36	21	10	2,747
Ross County	Appalachian Ohio	17,535	7,564	9,971	57%	36	24	12	1,643
Sandusky County	Northwest Ohio	14,773	7,529	7,244	49%	51	24	11	27
Scioto County	Appalachian Ohio	17,655	8,768	8,887	50%	22	19	9	2,166
Seneca County	Northwest Ohio	13,935	8,164	5,771	41%	50	25	12	45
Shelby County	Dayton and the Miami Valley	10,471	6,432	4,039	39%	49	25	13	0
Stark County	Northeast Ohio	96,060	30,916	65,144	68%	66	30	17	1,182
Summit County	Northeast Ohio	127,341	46,580	80,761	63%	68	32	17	2,801
Trumbull County	Northeast Ohio	53,819	19,919	33,900	63%	63	29	16	291
Tuscarawas County	Appalachian Ohio	23,018	8,468	14,550	63%	48	24	11	2,530
Union County	Central Ohio	11,091	5,307	5,784	52%	50	20	10	0
Van Wert County	Northwest Ohio	6,755	3,491	3,264	48%	35	25	13	157
Vinton County	Appalachian Ohio	2,934	1,305	1,629	56%	37	22	11	281
Warren County	Cincinnati and Southwest Ohio	48,183	22,601	25,582	53%	57	25	14	90
Washington County	Appalachian Ohio	16,461	9,010	7,451	45%	30	19	10	1,238
Wayne County	Northeast Ohio	26,474	11,641	14,833	56%	56	26	14	420
Williams County	Northwest Ohio	9,513	5,163	4,350	46%	39	25	11	22
Wood County	Northwest Ohio	27,863	13,287	14,576	52%	57	26	13	156
Wyandot County	Northwest Ohio	5,723	3,189	2,534	44%	33	22	10	125

How these are counted

People with Medicare: total beneficiaries in CMS's Medicare Monthly Enrollment file, July 2026, by county of residence. "Medicare Advantage and other plans" is CMS's category for Medicare Advantage and other Medicare health plans.
Plans open to everyone: Medicare Advantage plans (with or without drug coverage) that aren't special needs plans, counted by contract and plan in the CY2027 Landscape file.
Members whose plan ends: October 2026 members of regular plans that end or leave their county, from the Landscape files and the 2027 Plan Crosswalk; people CMS moves into another plan that still covers their county aren't counted.
We don't show plans' premiums, cost sharing, star ratings or benefits.

Sources

Frequently asked questions

How many people have Medicare in Ohio?

2,635,104 Ohioans had Medicare in July 2026, according to CMS's Medicare Monthly Enrollment data: 1,144,300 in Original Medicare and 1,490,804 in Medicare Advantage and other health plans.

How many Medicare Advantage plans are there in Ohio for 2027?

CMS's CY2027 Landscape file lists 119 Medicare Advantage plans open to everyone with Medicare somewhere in Ohio, plus 46 special needs plans, from 20 companies. Plans are sold by county, so the number where you live is lower: from 22 in Scioto County to 68 in Summit County.

Can I use these numbers?

Yes. They are public CMS data compiled by OhioMedicare.org; please cite CMS and this page. The county table is also a CSV file.

Why don't you show premiums or star ratings?

Plan premiums, costs, benefits and ratings belong with the plans themselves. To see the plans for your ZIP code, compare plans on PlanMatch, or contact Medicare.gov or 1-800-MEDICARE for information on all of your options.