NOTE: Gray indicates insufficient data or a suppressed estimate.
Zip codes in northern Delaware's suburban corridors, particularly in the Newark and Middletown areas, display the highest average household sizes (3.0–3.5+), consistent with family-oriented communities with newer housing developments. Coastal and resort areas in southeastern Sussex County, especially around Rehoboth Beach and Bethany Beach, register notably lower averages (1.5–2.0), reflecting concentrations of retirees and seasonal residents. Central Kent County zip codes around Dover cluster in the moderate range (2.3–2.7), creating a visible gradient that transitions from the larger households in the north to smaller ones along the southern coastline.
Data: U.S. Census Bureau, 2023 ACS
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- % of Population without Health Insurance, by Zip Code (ZCTA5) — New York
- % of Population without Health Insurance, by Zip Code (ZCTA5) — Delaware
- High School Graduate (% of Over 25) by Zip Code (ZCTA5) — Delaware
- Population Non-Hispanic American Indian % by Zip Code (ZCTA5) — Delaware
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- Population Non-Hispanic Asian % by Zip Code (ZCTA5) — Rhode Island
- Bachelor's Degree or Higher (% of Over 25) by Zip Code (ZCTA5) — Rhode Island
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- % of Households with Broadband Internet, by Zip Code (ZCTA5) — Rhode Island
- Housing Vacancy Rate by Zip Code (ZCTA5) — Alaska
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- Population Non-Hispanic American Indian % by Zip Code (ZCTA5) — North Dakota
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- Household Average Size by Zip Code (ZCTA5) — Ohio
- Household Average Size by Zip Code (ZCTA5) — Alaska
- Household Average Size by Zip Code (ZCTA5) — Texas
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