CMS Medicare enrollment · June 2026
Maine Medicare Enrollment
State and county enrollment from CMS, including Original Medicare, Medicare Advantage and Other Health Plans, and Part D coverage.
Informational only. These enrollment counts do not compare plans or provide medical, financial, or enrollment advice.
Maine enrollment figures
- Total Medicare enrollment
- 391K
- Original Medicare
- 160.9K
- MA & Other share
- 58.8%
- Part D coverage
- 82.9%
390,974
160,933 beneficiaries
CMS combined delivery-system measure
324,160 beneficiaries
County enrollment
17 CMS county rows for Maine. Unavailable values remain marked as not reported rather than estimated.
| County | Total | Original Medicare | MA & Other | MA & Other share | Part D share |
|---|---|---|---|---|---|
| Androscoggin County | 27,049 | 9,066 | 17,983 | 66.5% | 83.9% |
| Aroostook County | 21,340 | 9,968 | 11,372 | 53.3% | 82.3% |
| Cumberland County | 77,435 | 30,360 | 47,075 | 60.8% | 84.9% |
| Franklin County | 9,125 | 2,931 | 6,194 | 67.9% | 85% |
| Hancock County | 17,525 | 8,303 | 9,222 | 52.6% | 81.9% |
| Kennebec County | 35,226 | 12,542 | 22,684 | 64.4% | 82.9% |
| Knox County | 13,566 | 5,946 | 7,620 | 56.2% | 82.5% |
| Lincoln County | 12,793 | 5,208 | 7,585 | 59.3% | 82.1% |
| Oxford County | 18,339 | 7,050 | 11,289 | 61.6% | 84.6% |
| Penobscot County | 41,205 | 17,117 | 24,088 | 58.5% | 81.2% |
| Piscataquis County | 6,012 | 2,514 | 3,498 | 58.2% | 81.4% |
| Sagadahoc County | 11,409 | 4,651 | 6,758 | 59.2% | 79.5% |
| Somerset County | 15,552 | 6,109 | 9,443 | 60.7% | 82.9% |
| Unknown | Not reported | Not reported | Not reported | Not reported | Not reported |
| Waldo County | 12,853 | 5,312 | 7,541 | 58.7% | 82.2% |
| Washington County | 10,437 | 5,553 | 4,884 | 46.8% | 79% |
| York County | 61,107 | 28,302 | 32,805 | 53.7% | 82.7% |
Source and interpretation
CMS Medicare Monthly Enrollment, June 2026, published 2026-09-23. “MA & Other” retains the official combined CMS field label.
- CMS suppresses some small counts with an asterisk; suppressed values remain null in this snapshot.
- Medicare Advantage and Other Health Plans is the CMS-published combined measure and is not limited to Medicare Advantage alone.
- Enrollment counts describe a reporting month and do not compare plan benefits, provider networks, quality, or personal costs.