Wealth Index

Wealthiest county in Washington

The wealth index reflects the overall economic prosperity and financial well-being of a county's residents based on income levels, employment rates, and income inequality metrics.

A
B

Income Statistics Overview

See income data visualized

Metric King County Washington Avg US Average
Median Household Income $122,064 $95,177 $78,145
Median Personal Income $96,828 $74,356 $61,726
Average income growth 6.4% 6.0% 5.1%
Six-Figure Earners 27.8% 18.1% 13.2%

The median household income in King County is about 28% higher than in Washington. Income has been growing faster in King County (6.4%/yr) than in Washington (6.0%/yr).

About 28% of adults in King County earn six figures ($100,000 or more) a year, higher than the Washington average of 18%.

Median Household Income 2009–2023 Trend

Median Household Income Over Time

King County
United States

Median household income in King County, Washington grew by 79.7% from 2009 to 2023, reaching $122,064 in 2023. That's an average of about 6.4% per year.

Year King County United States

Economic Inequality in King County | Gender Pay Gap | Gini Coefficient

Metric King County Washington Avg US Average
Gini Coefficient 0.543 0.554 0.570
Male Median Income $107,936 $82,830 $67,746
Female Median Income $83,493 $65,517 $54,793
Gender Pay Gap 22.6% 20.9% 19.1%

The Gini coefficient measures how evenly income is shared between richer and poorer households, from 0 (everyone earns the same) to 1 (one household earns nearly everything). The lower the number, the more equally income is distributed. In King County, it is 0.543, lower than Washington's 0.554, so income is more evenly distributed here than there, and lower than the US's 0.570, so income is more evenly distributed here than there.

Men's income is about 29% more than women's income in King County, Washington. Over a 35-year career, a 29% wage gap accumulates to roughly $855,505 in unearned income for female workers in the area.

Income by Sex Over Time

Male
Female

Since 2009, the income gap between men and women in King County, Washington has narrowed from about 26% to 23% in 2023. In dollar terms, the gap has widened by $8,040 since 2009.

Year Male Income Female Income Gap %

Employment

Metric King County Washington Avg US Average
Unemployment Rate 4.6% 4.9% 5.2%
Working from Home 26.2% 17.7% 13.4%
Commute time (minutes) 26 22 22

Approximately 59,421 people are unemployed in King County, Washington.

The average commute time in King County is 26 minutes, longer than the 22 minutes in Washington.

Unemployment Rate Over Time

King County
United States

Since 2011, the unemployment rate in King County, Washington has fallen from 6.9% to 4.6% in 2023.

Year King County United States

Conclusion

Considering all these factors, King County, Washington has an overall wealth index grade of A, making it somewhat better than Washington, and notably better than the country as a whole.

Frequently Asked Questions

Common questions about income and wealth in King County, Washington.

How Rich Is King County, Washington?

King County has a wealth index grade of A. The wealth index grades areas from A+ (best) to F- by combining income levels, employment rates, and income inequality; an A grade means residents are much better off than the U.S. average. The median household income is $122,064, about 28% higher than the Washington average of $95,177.

What is the current median household income in King County, Washington?

As of 2023, the median household income in King County, Washington is $122,064.

What was the median household income in King County in 2023?

In 2023, the median household income in King County, Washington was $122,064.

What was the median household income in King County in 2020?

In 2020, the median household income in King County, Washington was $99,177.

What is the Gini coefficient in King County, Washington?

The Gini coefficient in King County is 0.543. It measures income inequality on a scale from 0 (everyone earns the same) to 1 (one household earns everything). That is lower than the US average of 0.570, so income is distributed more equally than in the country overall.

How has the income gap between men and women changed in King County, Washington?

Since 2009, the income gap between men and women in King County, Washington has narrowed from about 26% to 23% in 2023. In dollar terms, the gap has widened by $8,040 since 2009.