NOTE: Gray indicates insufficient data or a suppressed estimate.
Household sizes in the Austin metro follow a clear urban-suburban gradient, with the smallest averages (1.5–2.0 persons) concentrated in downtown Austin and the immediately surrounding central zip codes, likely reflecting a high density of single-occupant apartments and young professional households. Outer suburban and exurban zip codes to the north—particularly around Georgetown, Cedar Park, and areas northwest of Round Rock—consistently register averages above 3.0, indicating family-dominated housing stock. The eastern periphery also trends toward larger households (2.5–3.0+), while a notable cluster of very low household sizes extends west and south of downtown into adjacent zip codes.
Data: U.S. Census Bureau, 2023 ACS
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