Household Median Income by Zip Code (ZCTA5) — Washington

NOTE: Gray indicates insufficient data or a suppressed estimate.

The highest household median incomes, exceeding $125,000, concentrate heavily in the eastside Seattle suburbs and Puget Sound corridor zip codes, particularly in areas corresponding to Bellevue, Sammamish, and Issaquah, forming a distinct yellow-green cluster east of the metro core. Central and southeastern Washington zip codes generally fall in the $50,000–$80,000 range, with notably lower incomes below $30,000 visible in isolated pockets around college towns and tribal lands, including areas near Pullman and the Yakama Reservation. The western coastal and rural southwestern zip codes display moderate incomes in the $50,000–$70,000 range, creating a clear economic gradient between the affluent Puget Sound region and the rest of the state.

Data: U.S. Census Bureau, 2023 ACS

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