NOTE: Gray indicates insufficient data or a suppressed estimate.
The smallest average household sizes cluster tightly in Houston's urban core—particularly the Montrose, Midtown, and Medical Center areas—where values dip below 2.0, consistent with concentrations of apartments, young professionals, and single-person households. Larger household sizes of 3.0 or above dominate the suburban periphery, with notably high values in zip codes west of Katy, the far northeast, and pockets north of The Woodlands, reflecting family-oriented suburban development. A sharp gradient is visible radiating outward from downtown Houston, with the transition from sub-2.0 to above-3.0 averages occurring within just a few zip codes in most directions.
Data: U.S. Census Bureau, 2023 ACS
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