October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

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Home health by county in Washington

Washington has 39 counties. 37 of them have agencies with published Medicare home health volume in 2025: 73 agencies billing for 39,782 users statewide. The typical Washington county has 278 users per agency.

King
30
8,668
289
Pierce
19
4,600
242
Snohomish
13
3,255
250
Spokane
12
3,334
278
Kitsap
11
1,890
172
Island
8
671
84
Thurston
7
1,378
197
Clark
6
1,710
285
Whatcom
5
1,492
298
Yakima
5
1,088
218
Mason
4
307
77
Walla Walla
4
545
136
Cowlitz
3
595
198
Douglas
3
283
94
Lewis
3
468
156
Skagit
3
882
294
Stevens
3
295
98
Benton
2
1,912
956
Chelan
2
575
288
Clallam
2
1,111
556
Franklin
2
495
248
Grays Harbor
2
960
480
Klickitat
2
288
144
Pacific
2
356
178
Skamania
2
123
62
Adams
1
52
52
Asotin
1
271
271
Garfield
1
17
17
Grant
1
387
387
Jefferson
1
553
553
Kittitas
1
273
273
Lincoln
1
68
68
Okanogan
1
243
243
Pend Oreille
1
130
130
San Juan
1
173
173
Wahkiakum
1
32
32
Whitman
1
272
272
Columbia
17 users · no agency with Medicare volume
Ferry
13 users · no agency with Medicare volume

Sources: CMS Market Saturation & Utilization, Home Health, 2025. Medicare fee-for-service only. Counts under 11 are not published by CMS.