| Rank |
County |
Households |
| 1 |
King County, Washington
|
790,070
|
| 2 |
Pierce County, Washington
|
297,839
|
| 3 |
Snohomish County, Washington
|
266,331
|
| 4 |
Spokane County, Washington
|
185,983
|
| 5 |
Clark County, Washington
|
157,179
|
| 6 |
Thurston County, Washington
|
100,147
|
| 7 |
Kitsap County, Washington
|
96,683
|
| 8 |
Yakima County, Washington
|
79,565
|
| 9 |
Whatcom County, Washington
|
79,003
|
| 10 |
Benton County, Washington
|
63,240
|
| 11 |
Skagit County, Washington
|
45,475
|
| 12 |
Cowlitz County, Washington
|
39,793
|
| 13 |
Island County, Washington
|
33,196
|
| 14 |
Clallam County, Washington
|
31,056
|
| 15 |
Grant County, Washington
|
29,922
|
| 16 |
Lewis County, Washington
|
29,586
|
| 17 |
Grays Harbor County, Washington
|
27,570
|
| 18 |
Chelan County, Washington
|
26,862
|
| 19 |
Mason County, Washington
|
22,914
|
| 20 |
Franklin County, Washington
|
22,004
|
| 21 |
Walla Walla County, Washington
|
21,645
|
| 22 |
Stevens County, Washington
|
17,652
|
| 23 |
Kittitas County, Washington
|
16,658
|
| 24 |
Whitman County, Washington
|
16,187
|
| 25 |
Okanogan County, Washington
|
15,648
|
| 26 |
Jefferson County, Washington
|
14,440
|
| 27 |
Douglas County, Washington
|
13,937
|
| 28 |
Pacific County, Washington
|
9,390
|
| 29 |
Asotin County, Washington
|
8,880
|
| 30 |
Klickitat County, Washington
|
8,228
|
| 31 |
San Juan County, Washington
|
8,051
|
| 32 |
Adams County, Washington
|
5,666
|
| 33 |
Pend Oreille County, Washington
|
5,450
|
| 34 |
Lincoln County, Washington
|
4,661
|
| 35 |
Skamania County, Washington
|
4,435
|
| 36 |
Ferry County, Washington
|
2,825
|
| 37 |
Columbia County, Washington
|
1,790
|
| 38 |
Wahkiakum County, Washington
|
1,648
|
| 39 |
Garfield County, Washington
|
959
|