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Ohio Medicare, by the Numbers

The data layer behind our Ohio guide and all 57 city pages, in one place: CMS enrollment, Census demographics, and federal shortage designations, county by county.

2,580,749Medicare beneficiaries statewide (2025)
56.7%chose Medicare Advantage plans
410,227dual-eligible for Medicare and Medicaid
634,176Ohioans 65+ live alone
153 minmedian ER visit statewide (CMS)
207federal primary-care shortage designations

Medicare Enrollment by County

Counties covered by our city pages (33 counties, 1,940,300 beneficiaries). Each county links to its anchor city page.

County Medicare beneficiaries Medicare Advantage share Dual-eligible Residents 65+ Shortage designations
Cuyahoga County 275,578 58.3% 56,683 237,668 12
Franklin County 205,853 57% 37,478 167,986 14
Hamilton County 161,849 57.2% 28,528 134,151 11
Summit County 124,156 64.1% 20,887 102,113 9
Montgomery County 118,195 61.3% 20,381 98,025 4
Stark County 94,736 68.1% 14,074 75,100 4
Lucas County 92,221 58.7% 18,314 73,314 9
Lorain County 76,329 58% 9,749 60,992 5
Butler County 75,049 56.3% 10,968 60,535 3
Mahoning County 60,222 65.1% 12,224 50,002 4
Lake County 60,150 55.1% 5,845 48,896 5
Trumbull County 53,190 62.8% 8,566 44,363 2
Warren County 46,521 53.6% 3,947 37,771 5
Medina County 43,826 56.3% 3,518 35,200 1
Delaware County 41,584 48.3% 3,215 32,507 1
Licking County 38,385 56.5% 4,776 30,851 1
Greene County 36,558 50% 4,161 30,665 2
Fairfield County 32,360 58.8% 4,110 26,447 4
Clark County 31,878 60.4% 5,515 27,115 2
Richland County 30,324 52.8% 5,181 24,763 4
Wood County 27,287 52.2% 2,875 21,390 3
Wayne County 26,091 56% 3,216 21,693 0
Allen County 23,548 50.6% 4,042 18,988 3
Muskingum County 21,954 56.6% 4,782 15,794 1
Erie County 21,416 49.2% 2,840 17,265 4
Ross County 17,254 56.5% 3,371 13,432 4
Jefferson County 17,162 52% 2,851 14,341 1
Scioto County 17,056 50.2% 4,250 13,529 4
Hancock County 16,489 46.2% 2,044 13,726 2
Washington County 16,334 44.4% 2,696 12,866 1
Marion County 15,002 57.8% 2,847 11,958 3
Athens County 11,458 51.9% 2,309 9,053 1
Shelby County 10,285 38.5% 1,176 8,440 0

Statewide, 56.7% of beneficiaries chose Medicare Advantage in 2025. Counties above that line see more prior authorizations and more denials worth appealing; counties below it lean on Medigap rights, which in Ohio follow the federal rule at 65 (one guaranteed six-month window, no birthday rule, no year-round switching) and, unlike some states, add no under-65 guaranteed-issue right, so timing at 65 matters even more. About 9.5% of Ohio seniors live below the poverty line, the group most likely to qualify for unclaimed help: Extra Help and the Medicare Savings Programs. For the full rundown, sources included, see our Ohio patient advocacy hub.

The Numbers Are the Backdrop. The Help Is the Point.

One dedicated advocate for the bills, appeals, appointments, and paperwork, serving every Ohio county virtually, usually at $0 with Medicare.

Or start from your city: every Ohio city we serve.

Sources: CMS Medicare Monthly Enrollment (2025); US Census Bureau ACS 2023 5-year; CMS Care Compare Timely & Effective Care (median ER minutes, period ending 06/30/2025); HRSA Health Professional Shortage Area designation file. Data retrieved 2026-08-07. Understood Care is an independent private advocacy service, not a government agency.