Medicare plans
Medicare plans in Washington
115 Medicare Advantage plans are offered somewhere in Washington for 2027 (126 in 2026), 75 at a $0 premium. 39 of 39 counties have at least one, and 8 drug-only plans cover the state.
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Shopping for your own coverage? Use Medicare Plan Finder at medicare.gov or call 1-800-MEDICARE.
Washington at a glance
| Plans offered in the state | 2026 | 2027 |
|---|---|---|
| Advantage | 126 | 115 |
| Advantage at a $0 premium | 65 | 75 |
| Drug only | 10 | 8 |
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Source: CMS CY2026 Medicare Advantage and Part D landscape file, as of September 25, 2025. Publisher page
Counties in Washington
- Adams County18 Advantage plans, 9 at $0
- Asotin County16 Advantage plans, 11 at $0
- Benton County27 Advantage plans, 15 at $0
- Chelan County17 Advantage plans, 9 at $0
- Clallam County14 Advantage plans, 8 at $0
- Clark County57 Advantage plans, 36 at $0
- Columbia County20 Advantage plans, 12 at $0
- Cowlitz County42 Advantage plans, 28 at $0
- Douglas County19 Advantage plans, 10 at $0
- Ferry County14 Advantage plans, 8 at $0
- Franklin County28 Advantage plans, 17 at $0
- Garfield County20 Advantage plans, 12 at $0
- Grant County17 Advantage plans, 9 at $0
- Grays Harbor County13 Advantage plans, 2 at $0
- Island County27 Advantage plans, 17 at $0
- Jefferson County36 Advantage plans, 24 at $0
- King County59 Advantage plans, 37 at $0
- Kitsap County56 Advantage plans, 37 at $0
- Kittitas County20 Advantage plans, 11 at $0
- Klickitat County11 Advantage plans, 6 at $0
- Lewis County45 Advantage plans, 25 at $0
- Lincoln County20 Advantage plans, 12 at $0
- Mason County37 Advantage plans, 21 at $0
- Okanogan County17 Advantage plans, 9 at $0
- Pacific County18 Advantage plans, 11 at $0
- Pend Oreille County21 Advantage plans, 12 at $0
- Pierce County66 Advantage plans, 44 at $0
- San Juan County18 Advantage plans, 12 at $0
- Skagit County42 Advantage plans, 29 at $0
- Skamania County30 Advantage plans, 22 at $0
- Snohomish County60 Advantage plans, 38 at $0
- Spokane County47 Advantage plans, 29 at $0
- Stevens County13 Advantage plans, 7 at $0
- Thurston County60 Advantage plans, 38 at $0
- Wahkiakum County34 Advantage plans, 24 at $0
- Walla Walla County25 Advantage plans, 14 at $0
- Whatcom County28 Advantage plans, 19 at $0
- Whitman County19 Advantage plans, 12 at $0
- Yakima County20 Advantage plans, 10 at $0
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
For agents, pharmacies, and practices
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Rivvi's county landscape snapshot lists every 2027 plan in a client's county, counted by type and carrier, with premium and out-of-pocket ranges.
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About this data
Plans, premiums, out-of-pocket maximums, and drug deductibles come from the CMS CY2027 Medicare Advantage and Part D landscape file. Change from 2026 compares it with the CY2026 landscape. Stars are the 2027 Star Ratings CMS released October 8, 2026: the overall rating for Advantage plans and the Part D summary rating for drug-only plans, which have no overall rating.
Advantage counts include Special Needs Plans, which are open only to people who qualify. Drug-only plans are listed by CMS for a whole state, so every county page shows them. Employer group plans are not in the file. This page lists plans; it does not say which plan fits anyone, and Rivvi does not sell plans.
Source: CMS Medicare Advantage and Part D landscape files, as of September 30, 2026. Publisher page
Source: CMS CY2026 Medicare Advantage and Part D landscape file, as of September 25, 2025. Publisher page
Source: CMS 2027 Medicare Part C and D Star Ratings, as of October 8, 2026. Publisher page