Connecticut 2020 Census Population Density By County Map

The population density of Connecticut from the 2020 Census was 744.67 people per square mile, based on data from the US Census Bureau.

Fairfield County had the highest population density (1,531.95 people per square mile), followed by New Haven County (1,431.12 people per square mile), and then Hartford County (1,223.92 people per square mile). On the other hand, the 3 counties with the lowest population density were: Litchfield County (201.18 people per square mile), Windham County (226.97 people per square mile), and Tolland County (365.02 people per square mile).

You can also see this information for other states and also for the US by state.

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