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.
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 |
| 2 | Snohomish County | $111,246 |
| 3 | Kitsap County | $104,158 |
| 4 | Pierce County | $99,564 |
| 5 | Clark County | $97,536 |
| 6 | Thurston County | $96,563 |
| 7 | Skamania County | $93,265 |
| 8 | Island County | $90,551 |
| 9 | Benton County | $89,874 |
| 10 | Skagit County | $89,263 |
Poorest Counties in Washington
Bottom 10 counties ranked by median household income.
| # | County | Income |
|---|---|---|
| 39 | Whitman County | $55,406 |
| 38 | Ferry County | $55,614 |
| 37 | Wahkiakum County | $62,653 |
| 36 | Okanogan County | $63,207 |
| 35 | Grays Harbor County | $64,414 |
| 34 | Garfield County | $64,884 |
| 33 | Adams County | $66,136 |
| 32 | Pacific County | $67,081 |
| 31 | Pend Oreille County | $67,436 |
| 30 | Stevens County | $69,327 |
All 39 Counties Ranked
Every county in Washington ranked by median household income. Click any county for its full profile.
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.