Health insurance in Marion County, Indiana
4 insurers sell 56 marketplace plans here, and 11.0% 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.
Who sells here, and how much choice that gives
4 insurers sell marketplace plans in Marion County, offering 56 plans between them, roughly 14 each. It gained 2 since the previous plan year, up from 2.
How many people here have no coverage
11.0% of Marion County's 823,841 under-65 residents have no health coverage — 90,932 people. That is above the Indiana rate of 9.1%, and puts Marion County in the middle half of the 1,817 counties on this site (868th).
How much the marketplace is used
56,717 Marion County residents selected a marketplace plan for 2026: 69 per thousand under-65 residents, 1268th of 1,817. That is close to the 78 per thousand typical of published counties. 9,615 of them — 17% — were new rather than renewing.
Marion County against Indiana
Marion County is the largest of the 12 Indiana counties we publish, by under-65 population. Its uninsured rate runs 1.9 points higher than Indiana overall and its 4 insurers sit between the state's 3 and 5. Marketplace use is close to the Indiana rate.
| Marion County | Indiana | Published median | |
|---|---|---|---|
| Uninsured, under 65 | 11.0% | 9.1% | 9.9% |
| Insurers selling | 4 | 3–5 | 4 |
| Plans offered | 56 | — | 57 |
| Selections per 1,000 | 69 | 54 | 78 |
| New rather than renewing | 17% | 14% | 15% |
Counties of a similar size nearby
| County | Under 65 | Uninsured | Insurers | Plans |
|---|---|---|---|---|
| Lake County | 401,823 | 8.7% | 3 | 47 |
| Hamilton County | 323,376 | 4.6% | 4 | 56 |
| St. Joseph County | 215,793 | 9.0% | 3 | 47 |
All of them have fewer insurers than this county's 4, which makes it the stronger market locally.
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