Ranking of Delaware Counties By Population in 2019

Updated on January 28, 2024.

Based on the US Census Vintage data estimates, in 2019, the Population for Delaware was 976.67K. Among all Delaware counties, New Castle County had the highest population (559.94K), followed by Sussex County (235.24K), and Kent County (181.49K).

The chart below shows the top 3 counties, and the table below shows the ranking of all Delaware counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

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Ranking of Delaware Counties By Population in 2019
New Castle
Sussex
Kent
Ranking of Delaware Counties By Population in 2019
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Rank County Population
1 New Castle County 559941
2 Sussex County 235235
3 Kent County 181492