NOTE: Gray indicates insufficient data or a suppressed estimate.
The northern tier of Washington D.C., particularly the upper Northwest neighborhoods around zip codes corresponding to areas like Chevy Chase and Tenleytown, registers the highest median ages at 50–60+, reflecting established residential communities with longer-tenured homeowners. In sharp contrast, the central corridor and Southeast quadrant skew significantly younger, with median ages in the low-to-mid 30s, consistent with areas experiencing rapid development and an influx of younger professionals. A few small zip codes in the downtown and near-Southwest area drop to the lowest values on the scale (around 20–25), likely corresponding to university campuses or dense young-renter districts such as Foggy Bottom near George Washington University.
Data: U.S. Census Bureau, 2023 ACS
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