NOTE: Gray indicates insufficient data or a suppressed estimate.
The northeastern corner of Arizona, encompassing portions of the Navajo Nation and Apache County, consistently registers the highest average household sizes at 3.0–3.5+, reflecting the larger multigenerational household structures common in tribal communities. In contrast, west-central Arizona—particularly zip codes around Prescott, Sedona, and parts of Yavapai County—displays notably low averages near 1.5–2.0, consistent with areas dominated by retiree populations. The Phoenix metropolitan area exhibits sharp internal variation, with outer suburban zip codes in the southeast valley and far west trending yellow (3.0+) while central Phoenix and Scottsdale zip codes skew toward lower household sizes in the 2.0–2.5 range.
Data: U.S. Census Bureau, 2023 ACS
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