NOTE: Gray indicates insufficient data or a suppressed estimate.
The lowest U.S. citizenship rates among adults cluster prominently in the Bellevue–Redmond corridor and parts of central/south Seattle, where several zip codes fall below 80%, likely reflecting concentrations of immigrant and visa-holder populations tied to the region's tech industry. In contrast, the western and northwestern periphery of the metro area—including areas on the Kitsap Peninsula and north of Shoreline—consistently registers citizenship rates above 95%, appearing in bright yellow-green tones. A secondary pocket of lower citizenship rates emerges around Lakewood and parts of south Tacoma, suggesting a more dispersed but notable non-citizen population in the southern reaches of the metro.
Data: U.S. Census Bureau, 2023 ACS
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