Medicare in Oregon by county

Most people with Medicare

Across Oregon, 973,880 people had Medicare in July 2026, 54% of them in Medicare Advantage or another Medicare health plan. The counties with the most:

1. Multnomah County 138,852 with Medicare · 65% in Medicare Advantage · 25 Advantage plans with drug coverage
2. Washington County 106,942 with Medicare · 64% in Medicare Advantage · 25 Advantage plans with drug coverage
3. Clackamas County 99,358 with Medicare · 66% in Medicare Advantage · 25 Advantage plans with drug coverage
4. Lane County 97,708 with Medicare · 63% in Medicare Advantage · 21 Advantage plans with drug coverage
5. Marion County 72,310 with Medicare · 65% in Medicare Advantage · 19 Advantage plans with drug coverage
6. Jackson County 62,135 with Medicare · 49% in Medicare Advantage · 3 Advantage plans with drug coverage
7. Deschutes County 53,236 with Medicare · 39% in Medicare Advantage · 2 Advantage plans with drug coverage
8. Douglas County 36,476 with Medicare · 51% in Medicare Advantage · 3 Advantage plans with drug coverage
9. Linn County 32,991 with Medicare · 61% in Medicare Advantage · 16 Advantage plans with drug coverage
10. Josephine County 28,695 with Medicare · 58% in Medicare Advantage · 3 Advantage plans with drug coverage

All 36 counties, A to Z

• Baker County5,506 with Medicare · 16% in Medicare Advantage · 3 Advantage plans with drug coverage
• Benton County19,959 with Medicare · 50% in Medicare Advantage · 14 Advantage plans with drug coverage
• Clackamas County99,358 with Medicare · 66% in Medicare Advantage · 25 Advantage plans with drug coverage
• Clatsop County11,818 with Medicare · 8% in Medicare Advantage · 5 Advantage plans with drug coverage
• Columbia County13,763 with Medicare · 61% in Medicare Advantage · 21 Advantage plans with drug coverage
• Coos County21,983 with Medicare · 25% in Medicare Advantage · 1 Advantage plans with drug coverage
• Crook County8,345 with Medicare · 41% in Medicare Advantage · 5 Advantage plans with drug coverage
• Curry County9,968 with Medicare · 7% in Medicare Advantage · 0 Advantage plans with drug coverage
• Deschutes County53,236 with Medicare · 39% in Medicare Advantage · 2 Advantage plans with drug coverage
• Douglas County36,476 with Medicare · 51% in Medicare Advantage · 3 Advantage plans with drug coverage
• Gilliam County641 with Medicare · 17% in Medicare Advantage · 6 Advantage plans with drug coverage
• Grant County2,390 with Medicare · 4% in Medicare Advantage · no Advantage plans listed
• Harney County2,208 with Medicare · 4% in Medicare Advantage · no Advantage plans listed
• Hood River County5,260 with Medicare · 34% in Medicare Advantage · 11 Advantage plans with drug coverage
• Jackson County62,135 with Medicare · 49% in Medicare Advantage · 3 Advantage plans with drug coverage
• Jefferson County6,527 with Medicare · 40% in Medicare Advantage · 2 Advantage plans with drug coverage
• Josephine County28,695 with Medicare · 58% in Medicare Advantage · 3 Advantage plans with drug coverage
• Klamath County18,999 with Medicare · 40% in Medicare Advantage · 4 Advantage plans with drug coverage
• Lake County2,427 with Medicare · 4% in Medicare Advantage · no Advantage plans listed
• Lane County97,708 with Medicare · 63% in Medicare Advantage · 21 Advantage plans with drug coverage
• Lincoln County18,303 with Medicare · 33% in Medicare Advantage · 4 Advantage plans with drug coverage
• Linn County32,991 with Medicare · 61% in Medicare Advantage · 16 Advantage plans with drug coverage
• Malheur County6,658 with Medicare · 34% in Medicare Advantage · 4 Advantage plans with drug coverage
• Marion County72,310 with Medicare · 65% in Medicare Advantage · 19 Advantage plans with drug coverage
• Morrow County2,381 with Medicare · 16% in Medicare Advantage · 3 Advantage plans with drug coverage
• Multnomah County138,852 with Medicare · 65% in Medicare Advantage · 25 Advantage plans with drug coverage
• Polk County20,594 with Medicare · 65% in Medicare Advantage · 17 Advantage plans with drug coverage
• Sherman County570 with Medicare · 29% in Medicare Advantage · 8 Advantage plans with drug coverage
• Tillamook County8,930 with Medicare · 16% in Medicare Advantage · 5 Advantage plans with drug coverage
• Umatilla County16,140 with Medicare · 5% in Medicare Advantage · no Advantage plans listed
• Union County6,919 with Medicare · 6% in Medicare Advantage · no Advantage plans listed
• Wallowa County2,694 with Medicare · 15% in Medicare Advantage · 3 Advantage plans with drug coverage
• Wasco County6,701 with Medicare · 32% in Medicare Advantage · 6 Advantage plans with drug coverage
• Washington County106,942 with Medicare · 64% in Medicare Advantage · 25 Advantage plans with drug coverage
• Wheeler County517 with Medicare · 5% in Medicare Advantage · 3 Advantage plans with drug coverage
• Yamhill County24,976 with Medicare · 59% in Medicare Advantage · 22 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 Oregon 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.