% of Population without Health Insurance, by Zip Code (ZCTA5) — Washington D.C. Metro

NOTE: Gray indicates insufficient data or a suppressed estimate.

Uninsured rates in the Washington D.C. metro area exhibit stark geographic disparities, with the highest concentrations (30–50%) clustered in a narrow band of zip codes just north and northeast of downtown D.C., likely corresponding to immigrant-heavy communities, while surrounding affluent suburbs in Fairfax County, western Montgomery County, and the Bowie area consistently fall below 5%. A secondary cluster of elevated uninsured rates (10–20%) appears in the outer Virginia suburbs near Manassas and along the I-66 corridor, contrasting sharply with the very low rates in nearby Tysons Corner and Rockville-area zip codes. The gray areas with missing data around Tysons Corner and parts of northern Montgomery County may reflect zip codes dominated by commercial or institutional land use with minimal residential population.

Data: U.S. Census Bureau, 2023 ACS

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