Medicare in New Hampshire by county

Most people with Medicare

Across New Hampshire, 361,924 people had Medicare in July 2026, 31% of them in Medicare Advantage or another Medicare health plan. The counties with the most:

1. Hillsborough County 94,598 with Medicare · 35% in Medicare Advantage · 12 Advantage plans with drug coverage
2. Rockingham County 83,839 with Medicare · 31% in Medicare Advantage · 9 Advantage plans with drug coverage
3. Merrimack County 40,736 with Medicare · 37% in Medicare Advantage · 8 Advantage plans with drug coverage
4. Strafford County 30,486 with Medicare · 36% in Medicare Advantage · 9 Advantage plans with drug coverage
5. Grafton County 25,536 with Medicare · 22% in Medicare Advantage · 5 Advantage plans with drug coverage
6. Cheshire County 21,939 with Medicare · 26% in Medicare Advantage · 1 Advantage plans with drug coverage
7. Belknap County 21,600 with Medicare · 34% in Medicare Advantage · 5 Advantage plans with drug coverage
8. Carroll County 19,478 with Medicare · 14% in Medicare Advantage · 0 Advantage plans with drug coverage
9. Sullivan County 12,697 with Medicare · 18% in Medicare Advantage · 5 Advantage plans with drug coverage
10. Coos County 11,014 with Medicare · 33% in Medicare Advantage · no Advantage plans listed

All 10 counties, A to Z

• Belknap County21,600 with Medicare · 34% in Medicare Advantage · 5 Advantage plans with drug coverage
• Carroll County19,478 with Medicare · 14% in Medicare Advantage · 0 Advantage plans with drug coverage
• Cheshire County21,939 with Medicare · 26% in Medicare Advantage · 1 Advantage plans with drug coverage
• Coos County11,014 with Medicare · 33% in Medicare Advantage · no Advantage plans listed
• Grafton County25,536 with Medicare · 22% in Medicare Advantage · 5 Advantage plans with drug coverage
• Hillsborough County94,598 with Medicare · 35% in Medicare Advantage · 12 Advantage plans with drug coverage
• Merrimack County40,736 with Medicare · 37% in Medicare Advantage · 8 Advantage plans with drug coverage
• Rockingham County83,839 with Medicare · 31% in Medicare Advantage · 9 Advantage plans with drug coverage
• Strafford County30,486 with Medicare · 36% in Medicare Advantage · 9 Advantage plans with drug coverage
• Sullivan County12,697 with Medicare · 18% in Medicare Advantage · 5 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 New Hampshire 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.