NOTE: Gray indicates insufficient data or a suppressed estimate.
Zip codes in southern Mississippi—particularly in the Hattiesburg-to-Gulfport corridor and parts of the Pine Belt—display notably higher average household sizes (3.0–3.5+), forming a distinct cluster of yellow-shaded areas, while several urban cores such as Jackson and Oxford trend lower (1.5–2.2), likely reflecting higher concentrations of single-person households and student populations. The Delta region in the northwestern part of the state shows moderate-to-high household sizes interspersed with pockets of smaller averages, suggesting demographic variability tied to rural poverty and outmigration patterns. Scattered zip codes along the western river counties consistently register among the lowest values, contrasting sharply with adjacent rural areas that maintain larger household compositions.
Data: U.S. Census Bureau, 2023 ACS
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