NOTE: Gray indicates insufficient data or a suppressed estimate.
Zip codes in the Tukwila-SeaTac corridor between Seattle and Kent display the highest uninsured rates in the metro, reaching approximately 20–25%, forming a distinct north-south band of elevated vulnerability along the I-5 and SR-99 corridors. In contrast, affluent suburban areas such as Bellevue, Kirkland, Redmond, and north Seattle neighborhoods consistently fall below 5%, underscoring a sharp east-west socioeconomic divide across the metro. Tacoma and Lakewood in the southern portion show moderate uninsured rates in the 8–12% range, elevated relative to the Eastside but well below the SeaTac-area peaks.
Data: U.S. Census Bureau, 2023 ACS
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