Household Average Size by Zip Code (ZCTA5) — Virginia

NOTE: Gray indicates insufficient data or a suppressed estimate.

Northern Virginia's outer suburbs—particularly in Loudoun, Prince William, and western Fairfax counties—display the highest average household sizes in the state, with numerous zip codes reaching 3.0 to 3.5+ persons, consistent with the region's concentration of family-oriented suburban development. In contrast, independent cities and college towns such as Charlottesville, Lexington, and Radford stand out as dark purple pockets with averages near 1.5–2.0, reflecting student housing and smaller urban households. The rural western and southwestern portions of the state generally fall in the 2.0–2.4 range, while the Hampton Roads metro area shows moderate values with localized variation driven by military housing and urban cores.

Data: U.S. Census Bureau, 2023 ACS

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