CMS Medicare enrollment · June 2026
Oregon 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.
Oregon enrollment figures
- Total Medicare enrollment
- 972.6K
- Original Medicare
- 449.2K
- MA & Other share
- 53.8%
- Part D coverage
- 82.6%
972,585
449,222 beneficiaries
CMS combined delivery-system measure
803,067 beneficiaries
County enrollment
37 CMS county rows for Oregon. Unavailable values remain marked as not reported rather than estimated.
| County | Total | Original Medicare | MA & Other | MA & Other share | Part D share |
|---|---|---|---|---|---|
| Baker County | 5,497 | 4,618 | 879 | 16% | 73.7% |
| Benton County | 19,911 | 9,986 | 9,925 | 49.8% | 84.8% |
| Clackamas County | 99,199 | 33,634 | 65,565 | 66.1% | 85.3% |
| Clatsop County | 11,793 | 10,895 | 898 | 7.6% | 77.2% |
| Columbia County | 13,750 | 5,381 | 8,369 | 60.9% | 81.5% |
| Coos County | 21,959 | 16,511 | 5,448 | 24.8% | 76.6% |
| Crook County | 8,336 | 4,907 | 3,429 | 41.1% | 76.7% |
| Curry County | 9,962 | 9,264 | 698 | 7% | 74.5% |
| Deschutes County | 53,156 | 32,088 | 21,068 | 39.6% | 80.4% |
| Douglas County | 36,438 | 17,763 | 18,675 | 51.3% | 78.9% |
| Gilliam County | 639 | 528 | 111 | 17.4% | 71.5% |
| Grant County | 2,379 | 2,276 | 103 | 4.3% | 71.6% |
| Harney County | 2,208 | 2,125 | 83 | 3.8% | 72.8% |
| Hood River County | 5,250 | 3,465 | 1,785 | 34% | 77.8% |
| Jackson County | 62,025 | 31,499 | 30,526 | 49.2% | 81.1% |
| Jefferson County | 6,523 | 3,896 | 2,627 | 40.3% | 74.1% |
| Josephine County | 28,667 | 12,144 | 16,523 | 57.6% | 80.3% |
| Klamath County | 18,982 | 11,316 | 7,666 | 40.4% | 76.6% |
| Lake County | 2,433 | 2,348 | 85 | 3.5% | 72.4% |
| Lane County | 97,579 | 36,270 | 61,309 | 62.8% | 84.6% |
| Lincoln County | 18,304 | 12,287 | 6,017 | 32.9% | 80.8% |
| Linn County | 32,971 | 12,863 | 20,108 | 61% | 83.8% |
| Malheur County | 6,615 | 4,337 | 2,278 | 34.4% | 81.8% |
| Marion County | 72,193 | 25,407 | 46,786 | 64.8% | 85.2% |
| Morrow County | 2,385 | 2,002 | 383 | 16.1% | 74.8% |
| Multnomah County | 138,762 | 48,013 | 90,749 | 65.4% | 85.6% |
| Polk County | 20,566 | 7,262 | 13,304 | 64.7% | 83.8% |
| Sherman County | 571 | 407 | 164 | 28.7% | 77.4% |
| Tillamook County | 8,913 | 7,480 | 1,433 | 16.1% | 77.3% |
| Umatilla County | 16,136 | 15,366 | 770 | 4.8% | 74.8% |
| Union County | 6,919 | 6,518 | 401 | 5.8% | 77.4% |
| Unknown | Not reported | Not reported | Not reported | Not reported | Not reported |
| Wallowa County | 2,691 | 2,278 | 413 | 15.3% | 78.3% |
| Wasco County | 6,695 | 4,537 | 2,158 | 32.2% | 76.8% |
| Washington County | 106,761 | 38,808 | 67,953 | 63.6% | 84.2% |
| Wheeler County | 523 | 499 | 24 | 4.6% | 68.3% |
| Yamhill County | 24,894 | 10,244 | 14,650 | 58.8% | 84.1% |
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.