Health insurance in Hamilton County, Ohio
8 insurers sell 130 marketplace plans here, and 8.0% of under-65 residents have no coverage at all.
Source: CMS Marketplace Open Enrollment Public Use Files and US Census Small Area Health Insurance Estimates, 2026 release.
8 insurers competing here
8 insurers sell in Hamilton County — 130 plans in total, around 16 each. Few people compare 130 plans properly without help. It gained 1 since the previous plan year, up from 7.
How many people here have no coverage
8.0% of Hamilton County's 672,238 under-65 residents have no health coverage — 53,925 people. That is close to the Ohio rate of 8.1%, and puts Hamilton County in the bottom quarter of the 1,817 counties on this site (1414th).
How much the marketplace is used
36,602 Hamilton County residents selected a marketplace plan for 2026: 54 per thousand under-65 residents, 1501st of 1,817. That is under the 78 per thousand typical of published counties. 6,195 of them — 17% — were new rather than renewing.
Hamilton County against Ohio
Hamilton County is the 3rd largest of the 22 Ohio counties we publish. Its uninsured rate tracks the state almost exactly and its 8 insurers sit between the state's 3 and 9. Marketplace use is close to the Ohio rate.
| Hamilton County | Ohio | Published median | |
|---|---|---|---|
| Uninsured, under 65 | 8.0% | 8.1% | 9.9% |
| Insurers selling | 8 | 3–9 | 4 |
| Plans offered | 130 | — | 57 |
| Selections per 1,000 | 54 | 50 | 78 |
| New rather than renewing | 17% | 16% | 15% |
Counties of a similar size nearby
| County | Under 65 | Uninsured | Insurers | Plans |
|---|---|---|---|---|
| Summit County | 424,484 | 7.4% | 8 | 125 |
| Cuyahoga County | 962,545 | 7.9% | 8 | 119 |
| Lucas County | 340,088 | 7.2% | 8 | 121 |
| Franklin County | 1,141,930 | 10.1% | 8 | 130 |
Every one of them has the same number of insurers, so this is a consistent regional market.
130 plans is a lot to work through. Start with network type, then the metal tiers. Other Ohio counties.