Delaware Voting-age Population By County in 2021 (ACS-5Yrs)

Based on the US Census ACS-5Yrs estimates, in 2021, the voting-age population of Delaware was 774.25K which was 78.85% of the total Delaware population. Among all Delaware counties, New Castle had the highest voting-age population (445.15K), followed by Sussex (190.59K), and Kent (138.50K).

The chart and table below shows the voting-age population of each county and the percentage of each county's population that are of voting-age.

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