2027 Medicare Advantage plans in Washington
Medicare Advantage availability is set county by county, unlike stand-alone Part D. 39 Washington counties have at least one 2027 plan, 1,151 county-level offerings in all — from 11 in Klickitat County to 66 in Pierce County. Counties with no plan at all are not listed.
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2027 drug-by-drug coverage is not published by CMS yet. The drug lookup covers 2026, whose formulary is live.
- Adams18
- Asotin16
- Benton27
- Chelan17
- Clallam14
- Clark57
- Columbia20
- Cowlitz42
- Douglas19
- Ferry14
- Franklin28
- Garfield20
- Grant17
- Grays Harbor13
- Island27
- Jefferson36
- King59
- Kitsap56
- Kittitas20
- Klickitat11
- Lewis45
- Lincoln20
- Mason37
- Okanogan17
- Pacific18
- Pend Oreille21
- Pierce66
- San Juan18
- Skagit42
- Skamania30
- Snohomish60
- Spokane47
- Stevens13
- Thurston60
- Wahkiakum34
- Walla Walla25
- Whatcom28
- Whitman19
- Yakima20