2026 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 2026 plan, 1,349 county-level offerings in all — from 13 in Asotin County to 68 in Clark County. Counties with no plan at all are not listed.
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- Adams22
- Asotin13
- Benton33
- Chelan25
- Clallam26
- Clark68
- Columbia27
- Cowlitz56
- Douglas29
- Ferry21
- Franklin33
- Garfield27
- Grant25
- Grays Harbor16
- Island36
- Jefferson39
- King61
- Kitsap54
- Kittitas26
- Klickitat17
- Lewis41
- Lincoln25
- Mason39
- Okanogan25
- Pacific26
- Pend Oreille28
- Pierce66
- San Juan26
- Skagit49
- Skamania31
- Snohomish63
- Spokane51
- Stevens15
- Thurston58
- Wahkiakum35
- Walla Walla31
- Whatcom39
- Whitman18
- Yakima29