Richest & Poorest Counties in Washington
Washington has 39 counties. The wealthiest county by median household income is King County at $124,746 , while the lowest-income county is Whitman County at $55,406 . The statewide median household income is $98,141, compared to the national median of $75,149.
The income gap between the wealthiest and poorest county in Washington is $69,340. 18 of 39 counties (46%) have a median household income above the national median of $75,149, while 21 (54%) fall below it.
Washington's statewide median of $98,141 is 30.6% above the national median. Income data is sourced from the U.S. Census Bureau's American Community Survey (2024 5-Year Estimates) and reflects pre-tax household income including wages, investments, and government transfers.
Geography
Metric
Washington — Median Household Income by County
Source: U.S. Census Bureau — ACS 5-Year Estimates. All values are estimates subject to margin of error.
Richest Counties in Washington
Top 10 counties ranked by median household income.
| # | County | Income |
|---|---|---|
| 1 | King County | $124,746 +66.0% |
| 2 | Snohomish County | $111,246 +48.0% |
| 3 | Kitsap County | $104,158 +38.6% |
| 4 | Pierce County | $99,564 +32.5% |
| 5 | Clark County | $97,536 +29.8% |
| 6 | Thurston County | $96,563 +28.5% |
| 7 | Skamania County | $93,265 +24.1% |
| 8 | Island County | $90,551 +20.5% |
| 9 | Benton County | $89,874 +19.6% |
| 10 | Skagit County | $89,263 +18.8% |
Poorest Counties in Washington
Bottom 10 counties ranked by median household income.
| # | County | Income |
|---|---|---|
| 39 | Whitman County | $55,406 -26.3% |
| 38 | Ferry County | $55,614 -26.0% |
| 37 | Wahkiakum County | $62,653 -16.6% |
| 36 | Okanogan County | $63,207 -15.9% |
| 35 | Grays Harbor County | $64,414 -14.3% |
| 34 | Garfield County | $64,884 -13.7% |
| 33 | Adams County | $66,136 -12.0% |
| 32 | Pacific County | $67,081 -10.7% |
| 31 | Pend Oreille County | $67,436 -10.3% |
| 30 | Stevens County | $69,327 -7.7% |
All 39 Counties Ranked
Every county in Washington ranked by median household income. Click any county for its full profile.
| # | County | Income |
|---|---|---|
| 1 | King County | $124,746 +66.0% |
| 2 | Snohomish County | $111,246 +48.0% |
| 3 | Kitsap County | $104,158 +38.6% |
| 4 | Pierce County | $99,564 +32.5% |
| 5 | Clark County | $97,536 +29.8% |
| 6 | Thurston County | $96,563 +28.5% |
| 7 | Skamania County | $93,265 +24.1% |
| 8 | Island County | $90,551 +20.5% |
| 9 | Benton County | $89,874 +19.6% |
| 10 | Skagit County | $89,263 +18.8% |
| 11 | Franklin County | $86,714 +15.4% |
| 12 | San Juan County | $84,800 +12.8% |
| 13 | Mason County | $83,270 +10.8% |
| 14 | Chelan County | $82,381 +9.6% |
| 15 | Whatcom County | $81,784 +8.8% |
| 16 | Douglas County | $80,363 +6.9% |
| 17 | Spokane County | $78,582 +4.6% |
| 18 | Cowlitz County | $76,531 +1.8% |
| 19 | Lewis County | $74,796 -0.5% |
| 20 | Walla Walla County | $74,202 -1.3% |
| 21 | Jefferson County | $74,048 -1.5% |
| 22 | Kittitas County | $73,804 -1.8% |
| 23 | Grant County | $73,267 -2.5% |
| 24 | Asotin County | $72,283 -3.8% |
| 25 | Columbia County | $71,810 -4.4% |
| 26 | Lincoln County | $71,512 -4.8% |
| 27 | Klickitat County | $71,042 -5.5% |
| 28 | Yakima County | $70,656 -6.0% |
| 29 | Clallam County | $70,370 -6.4% |
| 30 | Stevens County | $69,327 -7.7% |
| 31 | Pend Oreille County | $67,436 -10.3% |
| 32 | Pacific County | $67,081 -10.7% |
| 33 | Adams County | $66,136 -12.0% |
| 34 | Garfield County | $64,884 -13.7% |
| 35 | Grays Harbor County | $64,414 -14.3% |
| 36 | Okanogan County | $63,207 -15.9% |
| 37 | Wahkiakum County | $62,653 -16.6% |
| 38 | Ferry County | $55,614 -26.0% |
| 39 | Whitman County | $55,406 -26.3% |
About This Data
All figures are estimates from the American Community Survey 2024 5-Year Estimates, published by the U.S. Census Bureau. Values are subject to sampling variability and margin of error.
Rankings are within Washington only and may differ from national rankings. For more information, see our methodology.