Medicare in Maine by county

Most people with Medicare

Across Maine, 391,575 people had Medicare in July 2026, 59% of them in Medicare Advantage or another Medicare health plan. The counties with the most:

1. Cumberland County 77,602 with Medicare · 61% in Medicare Advantage · 16 Advantage plans with drug coverage
2. York County 61,248 with Medicare · 54% in Medicare Advantage · 16 Advantage plans with drug coverage
3. Penobscot County 41,253 with Medicare · 58% in Medicare Advantage · 13 Advantage plans with drug coverage
4. Kennebec County 35,263 with Medicare · 64% in Medicare Advantage · 17 Advantage plans with drug coverage
5. Androscoggin County 27,077 with Medicare · 67% in Medicare Advantage · 14 Advantage plans with drug coverage
6. Aroostook County 21,361 with Medicare · 53% in Medicare Advantage · 9 Advantage plans with drug coverage
7. Oxford County 18,367 with Medicare · 62% in Medicare Advantage · 11 Advantage plans with drug coverage
8. Hancock County 17,545 with Medicare · 53% in Medicare Advantage · 6 Advantage plans with drug coverage
9. Somerset County 15,552 with Medicare · 61% in Medicare Advantage · 6 Advantage plans with drug coverage
10. Knox County 13,583 with Medicare · 56% in Medicare Advantage · 14 Advantage plans with drug coverage

All 16 counties, A to Z

• Androscoggin County27,077 with Medicare · 67% in Medicare Advantage · 14 Advantage plans with drug coverage
• Aroostook County21,361 with Medicare · 53% in Medicare Advantage · 9 Advantage plans with drug coverage
• Cumberland County77,602 with Medicare · 61% in Medicare Advantage · 16 Advantage plans with drug coverage
• Franklin County9,146 with Medicare · 68% in Medicare Advantage · 12 Advantage plans with drug coverage
• Hancock County17,545 with Medicare · 53% in Medicare Advantage · 6 Advantage plans with drug coverage
• Kennebec County35,263 with Medicare · 64% in Medicare Advantage · 17 Advantage plans with drug coverage
• Knox County13,583 with Medicare · 56% in Medicare Advantage · 14 Advantage plans with drug coverage
• Lincoln County12,808 with Medicare · 59% in Medicare Advantage · 14 Advantage plans with drug coverage
• Oxford County18,367 with Medicare · 62% in Medicare Advantage · 11 Advantage plans with drug coverage
• Penobscot County41,253 with Medicare · 58% in Medicare Advantage · 13 Advantage plans with drug coverage
• Piscataquis County6,013 with Medicare · 58% in Medicare Advantage · 7 Advantage plans with drug coverage
• Sagadahoc County11,449 with Medicare · 59% in Medicare Advantage · 13 Advantage plans with drug coverage
• Somerset County15,552 with Medicare · 61% in Medicare Advantage · 6 Advantage plans with drug coverage
• Waldo County12,848 with Medicare · 59% in Medicare Advantage · 13 Advantage plans with drug coverage
• Washington County10,459 with Medicare · 47% in Medicare Advantage · 7 Advantage plans with drug coverage
• York County61,248 with Medicare · 54% in Medicare Advantage · 16 Advantage plans with drug coverage

Sources: CMS Medicare Monthly Enrollment, July 2026, and the CMS 2027 plan landscape. Medicare Advantage here includes other Medicare health plans, such as cost plans and PACE. Before you meet any agent, check their Maine license.

Keep reading

• How to find a good Medicare agent near youWhere to look for a local Medicare agent, how to narrow the list to one or two, and the five-minute checks to do before you share anything.
• Medicare Open Enrollment checklist: what to check before December 7A step-by-step checklist for the October 15 to December 7, 2026 Open Enrollment Period: what to read in your plan's letter, what's changing for 2027, what you can switch, and what happens if you do nothing.
• Moving to another state with Medicare: what changes and what to doOriginal Medicare moves with you; most Medicare Advantage and drug plans don't. What happens to each kind of coverage when you move, your window to switch, and why your agent must be licensed in your new state.