RANKING · 2024 ACS · 500 SHOWN OF 16,831
Largest households, US ZIP codes
US ZIP codes ranked by average household size (2024 ACS). 22807 leads at 9.50. 16,831 ZIP codes qualify in total. ZIP codes with fewer than 2,500 residents are excluded. California carries 9 of the top 25 entries.
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RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS –
USUnited States334,922,4992.54–
UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which ZIP code has the highest average household size?
22807 ranks #1 with 9.50 (2024 American Community Survey).
What are the top 5 ZIP codes by average household size?
22807, 87052, 86021, 85121, 93033.
How many ZIP codes are in this ranking?
16,831 ZIP codes qualify after filtering for population minimums and data availability (minimum 2,500 residents). The ranking covers 2024 ACS 5-year data.
How is average household size measured?
Average number of people per household. Source: US Census Bureau, American Community Survey 5-year estimates (2024).