CMS's own filing for Mississippi
Medicare Advantage plans in Mississippi, by the numbers
What CMS published about Medicare enrollment in Mississippi: 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 Mississippi sits among the states
44.1% of everyone with Medicare in Mississippi is in a Medicare Advantage or other health plan rather than Original Medicare. That puts Mississippi 33th of 51, between South Carolina above it and Illinois 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 Mississippi
| Measure | What CMS published | Source |
|---|---|---|
| People with Medicare | In 2025, 651,475 people were enrolled in Medicare in Mississippi. | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In Medicare Advantage and other health plans | In 2025, 287,425 of them were in Medicare Advantage or another health plan rather than Original Medicare in Mississippi (44.1% of everyone with Medicare in Mississippi). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In Original Medicare | In 2025, 364,049 stayed in Original Medicare in Mississippi (55.9% of everyone with Medicare in Mississippi). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| In a stand-alone Part D drug plan | In 2025, 243,996 bought drug coverage as a stand-alone Part D plan in Mississippi (37.5% of everyone with Medicare in Mississippi). | CMS Medicare Monthly Enrollment, 2025 read September 2026 |
| Also covered by Medicaid | In 2025, 161,471 were covered by Medicaid as well as Medicare in Mississippi (24.8% of everyone with Medicare in Mississippi). | 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
Mississippi: 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: Mississippi", updated 2026-09-11, https://medicareplancomparison.com/states/mississippi/.
Download the Mississippi figures (CSV), free to reuse with citation.