Ranking of Delaware Counties By Number of People and Percentage of Population With No Health Insurance Coverage in 2021 (ACS-5Yrs)

Updated on October 27, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the Delaware population without a health insurance coverage was 5.84% (i.e. 56,442 people). Percentagewise, among all Delaware counties, Kent County had the highest percentage of its population with no health insurance coverage (7.14%), followed by Sussex County (6.38%), and New Castle County (5.21%).

In numerical terms, New Castle County had the highest number of people without a health insurance coverage (29,122), followed by Sussex County (14,744), and Kent County (12,576).

The charts below shows the top 3 counties by the number of people and percentage of the population without a health insurance coverage. The tables below shows the ranking for all Delaware counties.

You can see similar information for other types of health insurance coverages.

You can also see similar information for other states.

Ranking of Delaware Counties By Percentage of Population With No Health Insurance Coverage in 2021
Kent County
Sussex County
New Castle County
Ranking of Delaware Counties By Number of People With No Health Insurance Coverage in 2021
New Castle County
Sussex County
Kent County
Ranking of Delaware Counties By Percentage of Population With No Health Insurance Coverage in 2021
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Rank County Percentage of Population (%)
1 Kent County 7.14
2 Sussex County 6.38
3 New Castle County 5.21
Ranking of Delaware Counties By Number of People With NO Health Insurance Coverage in 2021
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Rank County Number of People
1 New Castle County 29122
2 Sussex County 14744
3 Kent County 12576