CMS's own filing for South Carolina
Medicare Advantage plans in South Carolina, by the numbers
What CMS published about Medicare enrollment in South Carolina: 5 of 5 measures filed for this state, each one a field of the state's own row with the date the file was read.
- figures published by CMS
- 5
- counts CMS withheld
- 0
- the day this file was read
- 2026-09-11
Where South Carolina sits among the states
46.1% of everyone with Medicare in South Carolina is in a Medicare Advantage or other health plan rather than Original Medicare. That puts South Carolina 32th of 51, between Arkansas above it and Mississippi below. Across the country the same figure runs from 62.8% in Michigan down to 3.0% in Alaska, so what counts as the ordinary choice depends on where a person lives, and this is what it is where they do.
Every measure CMS filed for South Carolina
| Measure | What CMS published | Source |
|---|---|---|
| People with Medicare | In 2025, 1,263,550 people were enrolled in Medicare in South Carolina. | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In Medicare Advantage and other health plans | In 2025, 582,807 of them were in Medicare Advantage or another health plan rather than Original Medicare in South Carolina (46.1% of everyone with Medicare in South Carolina). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In Original Medicare | In 2025, 680,742 stayed in Original Medicare in South Carolina (53.9% of everyone with Medicare in South Carolina). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In a stand-alone Part D drug plan | In 2025, 467,142 bought drug coverage as a stand-alone Part D plan in South Carolina (37.0% of everyone with Medicare in South Carolina). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| Also covered by Medicaid | In 2025, 179,433 were covered by Medicaid as well as Medicare in South Carolina (14.2% of everyone with Medicare in South Carolina). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
A withheld figure means CMS did not publish the count, never that the count is zero.
Cite or embed this figure
South Carolina: 5 Medicare enrollment figures published by CMS and 0 counts withheld (Medicare Plan Comparison State Enrollment Index).
Cite as: "Medicare Plan Comparison State Enrollment Index: South Carolina", updated 2026-09-11, https://medicareplancomparison.com/states/south-carolina/.
Download the South Carolina figures (CSV), free to reuse with citation.