What are the richest counties in Washington?

King County ($124,746), Snohomish County ($111,246) and Kitsap County ($104,158) had the highest median household income in Washington in the 2020–24 survey.

Data as of 2024 · updated November 5, 2026

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All 39 ranked Washington counties

Washington counties ranked by median household income
Rank	County	Median household income 2020–24	Change since 2016–20	Residents
1	King County	$124,746	+25.8%	2,344,939
2	Snohomish County	$111,246	+24.6%	870,656
3	Kitsap County	$104,158	+31.9%	283,374
4	Pierce County	$99,564	+30.3%	946,288
5	Clark County	$97,536	+26.4%	532,119
6	Thurston County	$96,563	+27.3%	304,261
7	Skamania County	$93,265	+34.6%	12,669
8	Island County	$90,551	+28.0%	85,657
9	Benton County	$89,874	+24.7%	221,722
10	Skagit County	$89,263	+25.7%	132,975
11	Franklin County	$86,714	+29.6%	102,612
12	San Juan County	$84,800	+31.0%	18,577
13	Mason County	$83,270	+37.5%	71,165
14	Chelan County	$82,381	+34.4%	81,941
15	Whatcom County	$81,784	+25.0%	236,392
16	Douglas County	$80,363	+22.3%	46,473
17	Spokane County	$78,582	+30.7%	558,344
18	Cowlitz County	$76,531	+30.2%	114,885
19	Lewis County	$74,796	+36.1%	88,062
20	Walla Walla County	$74,202	+22.4%	62,361
21	Jefferson County	$74,048	+28.3%	33,970
22	Kittitas County	$73,804	+23.6%	48,803
23	Grant County	$73,267	+23.8%	105,727
24	Asotin County	$72,283	+34.0%	22,545
25	Columbia County	$71,810	+16.2%	4,141
26	Lincoln County	$71,512	+22.1%	11,982
27	Klickitat County	$71,042	+25.4%	24,331
28	Yakima County	$70,656	+28.7%	259,185
29	Clallam County	$70,370	+27.7%	78,202
30	Stevens County	$69,327	+27.4%	49,668
31	Pend Oreille County	$67,436	+22.6%	14,457
32	Pacific County	$67,081	+31.9%	24,357
33	Adams County	$66,136	+28.2%	21,488
34	Garfield County	$64,884	+14.0%	2,416
35	Grays Harbor County	$64,414	+27.1%	78,144
36	Okanogan County	$63,207	+30.2%	45,230
37	Wahkiakum County	$62,653	+14.9%	4,873
38	Ferry County	$55,614	+33.4%	7,517
39	Whitman County	$55,406	+31.0%	48,512

How this is ranked

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, American Community Survey 5-year estimates. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Washington has the highest median household income?

King County: $124,746, ahead of Snohomish County ($111,246) and Kitsap County ($104,158), of 39 Washington counties ranked.

How is this ranking calculated?

More county rankings for Washington

Median household income in other states

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