Delaware Population By County in 2016

Based on the US Census Vintage data estimates, in 2016, the population of Delaware was 949,989. Among all Delaware counties, New Castle[object Promise] had the highest population (555,582), followed by Sussex[object Promise] (219,631), and Kent[object Promise] (174,776). Kent[object Promise] was the least populated county (174,776).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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