Medicare in Maryland by county

Most people with Medicare

Across Maryland, 1,201,554 people had Medicare in July 2026, 25% of them in Medicare Advantage or another Medicare health plan. The counties with the most:

1. Montgomery County 200,058 with Medicare · 23% in Medicare Advantage · 15 Advantage plans with drug coverage
2. Baltimore County 174,993 with Medicare · 26% in Medicare Advantage · 11 Advantage plans with drug coverage
3. Prince George's County 156,374 with Medicare · 32% in Medicare Advantage · 11 Advantage plans with drug coverage
4. Anne Arundel County 110,493 with Medicare · 20% in Medicare Advantage · 12 Advantage plans with drug coverage
5. Baltimore city 104,625 with Medicare · 37% in Medicare Advantage · 7 Advantage plans with drug coverage
6. Howard County 59,452 with Medicare · 20% in Medicare Advantage · 13 Advantage plans with drug coverage
7. Harford County 57,428 with Medicare · 25% in Medicare Advantage · 10 Advantage plans with drug coverage
8. Frederick County 53,952 with Medicare · 20% in Medicare Advantage · 12 Advantage plans with drug coverage
9. Carroll County 38,594 with Medicare · 20% in Medicare Advantage · 9 Advantage plans with drug coverage
10. Washington County 34,279 with Medicare · 24% in Medicare Advantage · 10 Advantage plans with drug coverage

All 24 counties, A to Z

• Allegany County17,413 with Medicare · 19% in Medicare Advantage · 6 Advantage plans with drug coverage
• Anne Arundel County110,493 with Medicare · 20% in Medicare Advantage · 12 Advantage plans with drug coverage
• Baltimore city104,625 with Medicare · 37% in Medicare Advantage · 7 Advantage plans with drug coverage
• Baltimore County174,993 with Medicare · 26% in Medicare Advantage · 11 Advantage plans with drug coverage
• Calvert County19,453 with Medicare · 19% in Medicare Advantage · 9 Advantage plans with drug coverage
• Caroline County7,589 with Medicare · 24% in Medicare Advantage · 9 Advantage plans with drug coverage
• Carroll County38,594 with Medicare · 20% in Medicare Advantage · 9 Advantage plans with drug coverage
• Cecil County22,180 with Medicare · 22% in Medicare Advantage · 8 Advantage plans with drug coverage
• Charles County29,859 with Medicare · 25% in Medicare Advantage · 9 Advantage plans with drug coverage
• Dorchester County9,147 with Medicare · 27% in Medicare Advantage · 7 Advantage plans with drug coverage
• Frederick County53,952 with Medicare · 20% in Medicare Advantage · 12 Advantage plans with drug coverage
• Garrett County7,918 with Medicare · 23% in Medicare Advantage · 3 Advantage plans with drug coverage
• Harford County57,428 with Medicare · 25% in Medicare Advantage · 10 Advantage plans with drug coverage
• Howard County59,452 with Medicare · 20% in Medicare Advantage · 13 Advantage plans with drug coverage
• Kent County6,470 with Medicare · 18% in Medicare Advantage · 6 Advantage plans with drug coverage
• Montgomery County200,058 with Medicare · 23% in Medicare Advantage · 15 Advantage plans with drug coverage
• Prince George's County156,374 with Medicare · 32% in Medicare Advantage · 11 Advantage plans with drug coverage
• Queen Anne's County13,329 with Medicare · 18% in Medicare Advantage · 6 Advantage plans with drug coverage
• Somerset County5,556 with Medicare · 31% in Medicare Advantage · 11 Advantage plans with drug coverage
• St. Mary's County20,438 with Medicare · 17% in Medicare Advantage · 4 Advantage plans with drug coverage
• Talbot County12,479 with Medicare · 16% in Medicare Advantage · 7 Advantage plans with drug coverage
• Washington County34,279 with Medicare · 24% in Medicare Advantage · 10 Advantage plans with drug coverage
• Wicomico County22,196 with Medicare · 27% in Medicare Advantage · 12 Advantage plans with drug coverage
• Worcester County17,279 with Medicare · 26% in Medicare Advantage · 6 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 Maryland 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.