Health insurance in Johnson County, Iowa
2 insurers sell 16 marketplace plans here, and 6.0% 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.
Two insurers, and what that means
Two insurers sell here, offering 16 plans between them. If either leaves, Johnson County becomes a single-insurer county. It gained 1 since the previous plan year, up from 1.
Comparatively few people go uncovered
6.0% of Johnson County's 129,488 under-65 residents have no health coverage — 7,771 people. That is close to the Iowa rate of 6.4%, and puts Johnson County in the bottom 10% of the 1,817 counties on this site (1695th).
How much the marketplace is used
5,068 Johnson County residents selected a marketplace plan for 2026: 39 per thousand under-65 residents, 1765th of 1,817. That is under the 78 per thousand typical of published counties. 701 of them — 14% — were new rather than renewing.
Johnson County against Iowa
Johnson County is the 4th largest of the 7 Iowa counties we publish. Its uninsured rate tracks the state almost exactly and with 2 it has the fewest insurers of any Iowa county. Marketplace use is close to the Iowa rate.
| Johnson County | Iowa | Published median | |
|---|---|---|---|
| Uninsured, under 65 | 6.0% | 6.4% | 9.9% |
| Insurers selling | 2 | 2–5 | 4 |
| Plans offered | 16 | — | 57 |
| Selections per 1,000 | 39 | 48 | 78 |
| New rather than renewing | 14% | 14% | 15% |
Counties of a similar size nearby
| County | Under 65 | Uninsured | Insurers | Plans |
|---|---|---|---|---|
| Scott County | 141,985 | 5.2% | 4 | 58 |
| Black Hawk County | 104,711 | 6.6% | 3 | 42 |
| Dallas County | 100,226 | 4.1% | 3 | 42 |
| Woodbury County | 87,572 | 9.0% | 4 | 58 |
Scott County has 4 insurers against this county's 2 — a reminder that the county line, not the state line, is what decides your options.