Ranking of Delaware Counties By Average Household Income in 2021 (ACS-5Yrs)

Updated on March 13, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the Average Household Income for Delaware was $97,081. Among all Delaware counties, New Castle County had the highest average household income ($104,692), followed by Sussex County ($92,069), and Kent County ($79,452).

The chart below shows the top 3 Delaware counties with high average household income, and the table below shows the ranking of all Delaware counties.

You can also see similar information for other states and for the United States.

Data Source: US Census Bureau.
Ranking of Delaware Counties By Average Household Income in 2021
New Castle County
Sussex County
Kent County
Ranking of Delaware Counties By Average Household Income in 2021
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Rank County Average Household Income ($)
1 New Castle County 104692
2 Sussex County 92069
3 Kent County 79452