Household Average Size by Zip Code (ZCTA5) — Tennessee

NOTE: Gray indicates insufficient data or a suppressed estimate.

Zip codes in the Nashville suburbs and middle Tennessee's exurban growth corridors display notably higher average household sizes (3.0–3.5), consistent with family-oriented suburban development, while urban cores in Memphis, Nashville, Knoxville, and Chattanooga register markedly lower values (1.5–2.0), reflecting concentrations of single-person households and smaller rental units. The western third of the state, particularly the rural areas surrounding Memphis, exhibits a broader mix of lower household sizes compared to the generally moderate values (2.4–2.8) found across much of eastern Tennessee's rural landscape. A distinct cluster of yellow-shaded zip codes in the south-central portion of the state, roughly corresponding to the Murfreesboro–Shelbyville corridor, stands out as one of the highest household-size concentrations statewide.

Data: U.S. Census Bureau, 2023 ACS

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