Health insurance in Platte County, Missouri
5 insurers sell 55 marketplace plans here, and 6.4% 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
5 insurers compete in Platte County with 55 plans between them, about 11 plans each. It gained 1 since the previous plan year, up from 4.
How many people here have no coverage
6.4% of Platte County's 94,270 under-65 residents have no health coverage — 6,035 people. That is below the Missouri rate of 9.2%, and puts Platte County in the bottom 10% of the 1,817 counties on this site (1644th).
How much the marketplace is used
5,225 Platte County residents selected a marketplace plan for 2026: 55 per thousand under-65 residents, 1487th of 1,817. That is under the 78 per thousand typical of published counties. 904 of them — 17% — were new rather than renewing.
Platte County against Missouri
Platte County is the 10th largest of the 12 Missouri counties we publish. Its uninsured rate runs 2.8 points lower than Missouri overall and its 5 insurers sit between the state's 2 and 6. Marketplace use is close to the Missouri rate.
| Platte County | Missouri | Published median | |
|---|---|---|---|
| Uninsured, under 65 | 6.4% | 9.2% | 9.9% |
| Insurers selling | 5 | 2–6 | 4 |
| Plans offered | 55 | — | 57 |
| Selections per 1,000 | 55 | 74 | 78 |
| New rather than renewing | 17% | 13% | 15% |
Counties of a similar size nearby
| County | Under 65 | Uninsured | Insurers | Plans |
|---|---|---|---|---|
| Cass County | 92,931 | 8.2% | 5 | 54 |
| Franklin County | 85,622 | 8.8% | 4 | 48 |
| Jasper County | 103,631 | 12.1% | 4 | 48 |
| Boone County | 155,950 | 7.6% | 4 | 48 |
All of them have fewer insurers than this county's 5, which makes it the stronger market locally.
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