Sumner County is better covered than Tennessee as a whole: 9.6% of under-65 residents uninsured against a state average of 11.3%, or roughly 16,876 people. It is the 6th lowest of the 95 counties in Tennessee. Where employer coverage is this widespread, losing it tends to arrive as more of a shock — most people here have never bought their own plan.
Sumner County against Tennessee, and against the counties we cover
| Sumner County | Tennessee | Covered counties | |
|---|---|---|---|
| Uninsured, under 65 | 9.6% | 11.3% | 13.0% |
| Marketplace enrollees per 1,000 | 77 | — | 127 |
| Insurers selling here | 5 | 5 (median) | 5 |
| Individual plans offered | 65 | — | 84 |
State uninsured rate from the Census SAHIE series; the final column is the median across the 104 counties covered on this site. Enrollment density is CMS plan selections per 1,000 under-65 residents.
What you can actually buy here
5 insurers sell into Sumner County. At that number the market is competitive without being bewildering. Networks still differ sharply between carriers — more sharply than the monthly prices do — which is the opposite of how most people shop. Between them they offer 65 plans, about 13 for each insurer, which is a normal-sized list to work through once you know which network you need. The count is up from 3 last year. Insurers entering a county usually means they like what they see in the risk pool, and it tends to show up as more aggressive pricing the following year rather than immediately.
13,540 people here bought marketplace coverage for 2026, about 77 per thousand under-65 residents. That sits near the middle of the counties covered on this site: a working individual market, but most local coverage still arrives through an employer. 2,438 of them were new consumers and 11,102 were renewals — a 18% new share, close to the national pattern. Roughly one in six enrollees here arrived within the year.
Nearest counties on coverage
The counties we cover in Tennessee whose uninsured rate sits closest to Sumner County. Worth a look if you are comparing across a county line or moving.
| County | Uninsured | Insurers | Enrollees |
|---|---|---|---|
| Knox County | 9.8% | 4 | 38,099 |
| Wilson County | 8.8% | 5 | 10,757 |
| Montgomery County | 8.6% | 5 | 13,611 |
| Rutherford County | 11.0% | 5 | 30,649 |
| Hamilton County | 11.5% | 5 | 31,362 |
| Shelby County | 12.6% | 5 | 86,784 |
Everything that applies in Tennessee · How COBRA works · Work out your COBRA premium · After a job ends
Common questions
How many people are uninsured in Sumner County?
About 16,876 people under 65, out of 175,579 in that age group — 9.6%, the 6th lowest of the 95 counties in Tennessee. The Tennessee average is 11.3%. Census Bureau estimates for 2024, the most recent published.
How many health insurers sell in Sumner County?
5 insurers offer individual marketplace plans in Sumner County for 2026, up from 3 the year before, and between them they sell 65 individual medical plans. The median across the counties covered on this site is 5 insurers and 84 plans.
How many people in Sumner County buy marketplace coverage?
13,540 plan selections for 2026 — 2,438 new consumers and 11,102 renewals. That works out at 77 per thousand under-65 residents, against a median of 127 across the counties covered here. New consumers are the group most likely to have lost a job during the year.
Talk it through with a licensed agent
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Sources
- U.S. Census Bureau, Small Area Health Insurance Estimates, 2024 (released August 2026)
- Centers for Medicare & Medicaid Services, 2026 Marketplace Open Enrollment County-Level Public Use File
- Centers for Medicare & Medicaid Services, 2026 Service Area Public Use File
- Centers for Medicare & Medicaid Services, 2026 Plan Attributes Public Use File
- U.S. Department of Labor, FAQs on COBRA Continuation Health Coverage for Workers