Counties in Washington by GDP (US dollars)

Name: Counties in Washington by GDP (US dollars), 2018
Creator: U.S. Bureau of Economic Analysis
License: Public domain (US federal government work, citation requested)

King County had the highest GDP (US dollars) of 39 counties in 2018, at $303.18 billion. Wahkiakum County had the lowest, at $88.93 million. The median was $2.58 billion and the figure for Washington was $570.34 billion. Source: the U.S. Bureau of Economic Analysis.

Highest303,176.6King County

Lowest88.9Wahkiakum County

Median2,580.639 counties

Washington570,337.8History

All counties, 2018

CSV Chart (SVG)

USD million. Source: BEA. Retrieved 2026-10-08.

Full ranking

Rank	Counties	2018 USD million	Change on 2017
1	King County	303,176.6	+9.3%
2	Snohomish County	52,343.3	+5.1%
3	Pierce County	44,297.4	+7.7%
4	Spokane County	26,296.4	+7.6%
5	Clark County	21,854.9	+8.9%
6	Thurston County	14,036.2	+8.7%
7	Whatcom County	13,424.8	+15.2%
8	Kitsap County	12,558.2	+4.9%
9	Benton County	11,750.4	+5%
10	Yakima County	10,674.8	+6.9%
11	Skagit County	7,066.7	+8.1%
12	Grant County	5,838.1	+1.6%
13	Cowlitz County	5,026.4	+6.9%
14	Chelan County	4,662.4	+4.5%
15	Franklin County	3,762.7	+7.7%
16	Walla Walla County	3,513.6	+3.1%
17	Lewis County	3,334.9	+7.7%
18	Island County	3,285.7	-1.2%
19	Whitman County	2,602.8	+10.1%
20	Clallam County	2,580.6	+5.4%
21	Grays Harbor County	2,548	+4.4%
22	Douglas County	1,923.4	+1.7%
23	Kittitas County	1,777.4	+7.5%
24	Mason County	1,676	+9.8%
25	Klickitat County	1,553.6	+18.4%
26	Okanogan County	1,462.9	-2.5%
27	Jefferson County	1,116.2	+10.5%
28	Stevens County	1,083.8	+4.1%
29	Adams County	835.2	+14.6%
30	San Juan County	811	+6.7%
31	Pacific County	730.6	+4.8%
32	Asotin County	652.3	+5.5%
33	Pend Oreille County	609	+4.9%
34	Lincoln County	427.8	+11.8%
35	Columbia County	347	-1.3%
36	Skamania County	280.5	+1.6%
37	Ferry County	172.9	-2.4%
38	Garfield County	154.2	+15.5%
39	Wahkiakum County	88.9	+5.9%

Other periods

About this ranking

GDP at current prices, millions of US dollars. United States: Bureau of Economic Analysis GDP by state (the national figure is the total of the same table) and GDP by county. Other countries and the World: World Bank, converted from national currency at official annual average exchange rates.

US dollars, for the United States, its states and counties, and for every country and the World from the World Bank. For Spain and the EU in euros use gdp. Exchange rate swings move dollar values even when output does not.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Bureau of Economic Analysis. CAGDP1: county GDP summary, current-dollar GDP (published in thousands of dollars, shown in millions). https://apps.bea.gov/regional/zip/CAGDP1.zip. Retrieved 2026-10-08.

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Questions

Which county has the highest GDP (US dollars)?

King County, with $303.18 billion in 2018, according to the U.S. Bureau of Economic Analysis.

Which county has the lowest GDP (US dollars)?

Wahkiakum County, with $88.93 million in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Bureau of Economic Analysis, CAGDP1: county GDP summary, current-dollar GDP (published in thousands of dollars, shown in millions). Retrieved 2026-10-08.