Washington counties
Quick answer
Washington has 39 counties and county equivalents holding 7,740,984 residents. The statewide sales tax base rate is 6.5%, before county and city add-ons.
All 39 counties
Ranked by population, Census 2019-2023 ACS 5-year estimates.
| County | Population | Median income | Median home value | Median rent |
|---|---|---|---|---|
| King County | 2,262,713 | $122,148 | $811,200 | $2,035 |
| Pierce County | 924,106 | $96,632 | $484,400 | $1,722 |
| Snohomish County | 834,648 | $107,982 | $644,600 | $1,866 |
| Spokane County | 544,323 | $73,513 | $370,500 | $1,200 |
| Clark County | 510,516 | $94,948 | $487,900 | $1,668 |
| Thurston County | 296,640 | $93,985 | $451,500 | $1,634 |
| Kitsap County | 276,581 | $98,546 | $505,700 | $1,741 |
| Yakima County | 256,605 | $68,015 | $281,100 | $1,068 |
| Whatcom County | 228,432 | $80,989 | $536,100 | $1,465 |
| Benton County | 210,224 | $87,316 | $369,400 | $1,256 |
| Skagit County | 130,407 | $85,474 | $486,200 | $1,439 |
| Cowlitz County | 111,539 | $72,932 | $367,400 | $1,169 |
| Grant County | 100,428 | $71,115 | $275,700 | $1,059 |
| Franklin County | 97,676 | $82,755 | $345,700 | $1,171 |
| Island County | 86,747 | $88,358 | $535,300 | $1,631 |
| Lewis County | 83,925 | $69,690 | $341,500 | $1,044 |
| Chelan County | 79,518 | $78,306 | $454,900 | $1,182 |
| Clallam County | 77,593 | $67,999 | $385,600 | $1,110 |
| Grays Harbor County | 76,397 | $63,539 | $279,500 | $1,018 |
| Mason County | 66,968 | $78,359 | $377,400 | $1,205 |
| Walla Walla County | 62,102 | $72,212 | $375,600 | $1,113 |
| Stevens County | 47,470 | $67,405 | $308,000 | $864 |
| Whitman County | 47,042 | $52,893 | $323,300 | $1,002 |
| Kittitas County | 44,736 | $69,928 | $459,900 | $1,253 |
| Douglas County | 43,733 | $80,374 | $402,900 | $1,234 |
| Okanogan County | 42,811 | $60,293 | $284,200 | $868 |
| Jefferson County | 33,313 | $71,143 | $495,100 | $1,291 |
| Pacific County | 23,750 | $62,350 | $274,000 | $962 |
| Klickitat County | 23,082 | $70,400 | $388,700 | $1,119 |
| Asotin County | 22,424 | $69,107 | $286,200 | $994 |
| Adams County | 20,690 | $65,042 | $251,300 | $901 |
| San Juan County | 18,266 | $83,682 | $726,500 | $1,413 |
| Pend Oreille County | 13,811 | $63,750 | $307,800 | $786 |
| Skamania County | 12,276 | $90,085 | $472,600 | $1,024 |
| Lincoln County | 11,271 | $71,227 | $272,300 | $872 |
| Ferry County | 7,326 | $54,650 | $274,500 | $703 |
| Wahkiakum County | 4,573 | $57,091 | $344,500 | $1,086 |
| Columbia County | 3,996 | $71,528 | $256,100 | $944 |
| Garfield County | 2,326 | $62,411 | $214,200 | $768 |
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
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