Skip to main content
Population Review

What is the richest county in Washington?

King County is the richest county in Washington by median household income at $122,148, per Census ACS 5-Year estimates.

Context

Wealthy counties tend to cluster around major employment hubs, university towns, and resort communities. They typically combine high educational attainment, knowledge-economy jobs, and constrained housing supply that filters for affluent residents.

Top 10

Explore Further

Related Questions

Frequently Asked Questions

King County is the richest county in Washington by median household income at $122,148, per Census ACS 5-Year estimates.