South Carolina Medicare numbers by county
Medicare Advantage and Part D plans are offered county by county, so the plans open to you depend on where you live. Pick your county to see local figures and free help in your area.
| County | Residents 65+ | People with Medicare | Medicare Advantage share |
|---|---|---|---|
| Abbeville County | 5,691 | 6,948 | 50.2% |
| Aiken County | 37,638 | 46,274 | 43.6% |
| Allendale County | 1,678 | 2,136 | 59.9% |
| Anderson County | 39,704 | 50,965 | 53.7% |
| Bamberg County | 3,162 | 3,561 | 59.1% |
| Barnwell County | 4,105 | 4,955 | 58.1% |
| Beaufort County | 58,041 | 62,550 | 32.6% |
| Berkeley County | 38,856 | 49,159 | 44.3% |
| Calhoun County | 3,569 | 4,200 | 49.5% |
| Charleston County | 78,368 | 87,614 | 35.9% |
| Cherokee County | 10,061 | 13,535 | 56.0% |
| Chester County | 6,384 | 8,302 | 55.0% |
| Chesterfield County | 8,639 | 10,728 | 51.2% |
| Clarendon County | 7,974 | 9,831 | 53.2% |
| Colleton County | 8,072 | 10,747 | 50.5% |
| Darlington County | 12,541 | 16,650 | 50.0% |
| Dillon County | 4,989 | 6,973 | 59.5% |
| Dorchester County | 26,553 | 34,414 | 43.2% |
| Edgefield County | 5,677 | 7,031 | 50.1% |
| Fairfield County | 5,103 | 6,419 | 54.7% |
| Florence County | 25,047 | 32,387 | 47.0% |
| Georgetown County | 20,784 | 23,493 | 42.1% |
| Greenville County | 95,536 | 119,428 | 49.4% |
| Greenwood County | 13,781 | 17,681 | 48.0% |
| Hampton County | 3,653 | 4,678 | 57.7% |
| Horry County | 107,430 | 138,361 | 45.7% |
| Jasper County | 8,375 | 12,272 | 38.7% |
| Kershaw County | 13,328 | 17,166 | 48.4% |
| Lancaster County | 23,409 | 27,710 | 45.2% |
| Laurens County | 13,209 | 17,845 | 52.7% |
| Lee County | 3,384 | 4,493 | 56.5% |
| Lexington County | 54,364 | 66,670 | 42.3% |
| Marion County | 6,253 | 8,192 | 57.5% |
| Marlboro County | 5,094 | 6,552 | 60.7% |
| McCormick County | 3,987 | 4,836 | 48.4% |
| Newberry County | 8,125 | 10,384 | 44.7% |
| Oconee County | 20,649 | 25,284 | 47.3% |
| Orangeburg County | 17,680 | 22,023 | 58.9% |
| Pickens County | 23,861 | 29,988 | 55.2% |
| Richland County | 61,710 | 80,443 | 43.1% |
| Saluda County | 4,015 | 4,946 | 40.4% |
| Spartanburg County | 58,315 | 77,228 | 54.3% |
| Sumter County | 18,854 | 24,666 | 50.0% |
| Union County | 5,904 | 7,736 | 60.6% |
| Williamsburg County | 6,987 | 8,660 | 61.0% |
| York County | 47,392 | 58,089 | 46.5% |
Sources: U.S. Census Bureau 2023 population estimates; CMS Medicare Advantage State/County Penetration, September 2026. Medicare Advantage share = people enrolled in a Medicare Advantage plan divided by people with Medicare. “n/a” means CMS does not publish a figure for very small counties.
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