Middlesex, Connecticut Census 2020 Population By Race and Ethnicity

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 164.25K population of Middlesex, CT residents comprised of 11.93K residents who identified as Hispanic or Latino (7.26%), and 152.32K residents who identified as Non-Hispanic (92.74%).

Race: The White Alone population was the largest racial group in Middlesex, CT, with a population of 134.72K (82.02%). The Two Or More Races population was the second largest racial group in Middlesex, CT, with a population of 11.35K (6.91%). The Black or African American Alone population was the third largest racial group in Middlesex, CT, with a population of 8.57K (5.22%). The smallest racial group in Middlesex, CT was Native Hawaiian And Pacific Islander Alone with a population of 50 (0.03%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Middlesex, CT, with a population of 131.95K (80.34%). The Non-Hispanic - Black Alone population was the second largest ethnic group in Middlesex, CT, with a population of 8.00K (4.87%). The Non-Hispanic - Two or More Races population was the third largest ethnic group in Middlesex, CT, with a population of 6.44K (3.92%). The smallest ethnic group in Middlesex, CT was Hispanic - Native Hawaiian & Pac. Islander with a population of 7 (0.00%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in Middlesex, Connecticut from the 2020 decennial census.

You can see similar information for other Connecticut counties and also for the state of Connecticut.

Middlesex, CT Hispanics and Non Hispanics Population in Census 2020
Total Population:
Middlesex, CT Racial Groups in Census 2020
Total Population:
Middlesex, CT Ethnicity Groups in Census 2020
Total Population:
Middlesex, CT Population of Racial Groups in Census 2020
Items per page:
0 of 0
Race Population % of County Population
Black or African American Alone 8565 5.22
White Alone 134715 82.02
American Indian and Alaska Native Alone 392 0.24
Asian Alone 4987 3.04
Native Hawaiian And Pacific Islander Alone 50 0.03
Some Other Race Alone 4189 2.55
Two Or More Races 11347 6.91
Middlesex, CT Population of Ethnicity Groups in Census 2020
Items per page:
0 of 0
Ethnicity Population % of County Population
Non-Hispanic - White Alone 131954 80.34
Non-Hispanic - Black Alone 8001 4.87
Non-Hispanic - Two or More Races 6438 3.92
Non-Hispanic - Asian Alone 4923 3.00
Hispanic - Two or More Races 4909 2.99
Hispanic - Some Other Race Alone 3445 2.10
Hispanic - White Alone 2761 1.68
Non-Hispanic - Some Other Race Alone 744 0.45
Hispanic - Black Alone 564 0.34
Non-Hispanic - American Indian & Alaska Native 214 0.13
Hispanic - American Indian & Alaska Native 178 0.11
Hispanic - Asian Alone 64 0.04
Non-Hispanic - Native Hawaiian & Pac. Islander 43 0.03
Hispanic - Native Hawaiian & Pac. Islander 7 0.00