At 11.5%, the uninsured rate among under-65 residents in Greenville County is effectively the South Carolina average of 11.2% — about 53,063 people out of 463,426. It is the 22nd highest of the 46 counties in South Carolina. A county sitting on its state's average is the most ordinary case there is, which makes the state's own rules the thing worth reading rather than anything local.
Greenville County against South Carolina, and against the counties we cover
| Greenville County | South Carolina | Covered counties | |
|---|---|---|---|
| Uninsured, under 65 | 11.5% | 11.2% | 13.0% |
| Marketplace enrollees per 1,000 | 132 | — | 127 |
| Insurers selling here | 3 | 4 (median) | 5 |
| Individual plans offered | 48 | — | 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
3 insurers compete here. That is thin enough that switching carrier usually means switching hospital system too, and wide enough that the premiums genuinely differ. Both things are worth checking before either is dismissed. Between them they offer 48 plans, about 16 for each insurer, a short list by national standards. Short lists are easier to compare properly, which is a real advantage as long as one of them fits your doctors. The count is up from 2 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.
60,999 marketplace plan selections were recorded in Greenville County for 2026, or 132 per thousand under-65 residents — above the 127 typical of the counties covered here. Enough people locally have done this that the process is not unfamiliar territory. 8,649 of them were new consumers and 52,350 were renewals — a 14% 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 South Carolina whose uninsured rate sits closest to Greenville County. Worth a look if you are comparing across a county line or moving.
| County | Uninsured | Insurers | Enrollees |
|---|---|---|---|
| Anderson County | 11.4% | 3 | 22,487 |
| Lexington County | 10.8% | 3 | 30,689 |
| Spartanburg County | 12.4% | 4 | 34,501 |
| Aiken County | 10.4% | 3 | 17,741 |
| Richland County | 10.3% | 4 | 46,217 |
| Berkeley County | 10.1% | 4 | 26,975 |
| Horry County | 14.1% | 3 | 50,985 |
Everything that applies in South Carolina · How COBRA works · Work out your COBRA premium · After a job ends
Common questions
How many people are uninsured in Greenville County?
About 53,063 people under 65, out of 463,426 in that age group — 11.5%, the 22nd highest of the 46 counties in South Carolina. The South Carolina average is 11.2%. Census Bureau estimates for 2024, the most recent published.
How many health insurers sell in Greenville County?
3 insurers offer individual marketplace plans in Greenville County for 2026, up from 2 the year before, and between them they sell 48 individual medical plans. The median across the counties covered on this site is 5 insurers and 84 plans.
How many people in Greenville County buy marketplace coverage?
60,999 plan selections for 2026 — 8,649 new consumers and 52,350 renewals. That works out at 132 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
Which option is right depends on your state, your income and which doctors you need to keep. A licensed agent can walk through it with you in about eight minutes.
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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