Household Average Size by Zip Code (ZCTA5) — Detroit Metro

NOTE: Gray indicates insufficient data or a suppressed estimate.

Zip codes in and immediately surrounding Dearborn display the highest average household sizes in the metro, reaching above 3.5, likely reflecting the area's large Arab American community with multigenerational household structures. Central Detroit zip codes stand in sharp contrast, with some of the lowest values in the region at approximately 1.5–2.0 persons per household, consistent with higher concentrations of single-occupant housing and smaller rental units. The suburban ring from Livonia through Farmington Hills and Sterling Heights clusters predominantly in the 2.4–2.8 range, representing a relatively uniform middle band typical of single-family homeowner demographics.

Data: U.S. Census Bureau, 2023 ACS

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