Connecticut Black or African American Alone Population By County in 2021

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2021, the Black or African American Alone population in Connecticut was 455,643 and represented 12.64% of the total Connecticut population (3,603,691).

Among Connecticut counties, Capitol Planning Region had the highest number of people who identified as Black or African American Alone (140,685), followed by South Central Connecticut Planning Region (89,988), and Western Connecticut Planning Region (77,621). Northeastern Connecticut Planning Region had the lowest (2,461).

In the map below, we show the number and percentage of each county's Black or African American Alone population, as well as the gender percentages when you interact with the map. 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 also by state for the United States.

You can also see similar information for other racial and ethnicity groups in Connecticut.

See this for other years:
Connecticut Black or African American Alone Population By County in 2021
Connecticut Black or African American Alone Population By County in 2021
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County Black Alone Population % of County Population
Capitol Planning Region 140685 14.5
Greater Bridgeport Planning Region 45507 13.93
Lower Connecticut River Valley Planning Region 10584 6.03
Naugatuck Valley Planning Region 64475 14.26
Northeastern Connecticut Planning Region 2461 2.57
Northwest Hills Planning Region 4526 4.01
South Central Connecticut Planning Region 89988 15.83
Southeastern Connecticut Planning Region 19796 7.1
Western Connecticut Planning Region 77621 12.45