Household Average Size by Zip Code (ZCTA5) — Florida

NOTE: Gray indicates insufficient data or a suppressed estimate.

South Florida's Miami-Dade and Broward counties display a stark internal contrast, with dense urban zip codes averaging 3.0–3.5+ persons per household alongside coastal areas dropping below 2.0, likely reflecting the region's mix of multigenerational immigrant households and retirement-heavy condominiums. The Florida Panhandle and Gulf Coast corridors from Tampa northward trend toward moderate household sizes of 2.2–2.6, while scattered rural zip codes in central Florida's interior push higher, near 2.8–3.2. Notably, the Keys and several southwest coastal retirement communities register among the lowest averages statewide, consistently falling below 1.8–2.0 persons per household.

Data: U.S. Census Bureau, 2023 ACS

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