Population By Race and Ethnicity in Middlesex County, MA in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the 1,617,262 population of Middlesex County, Massachusetts comprised of 145,113 people who identified as Hispanic (8.97%), and 1,472,149 people who identified as Non-Hispanic (91.03%).

Race: The White Alone population was the largest racial group in Middlesex County, Massachusetts with a population of 1,245,096 (76.99%); Asian Alone population was the second largest racial group with a population of 224,358 (13.87%); and Black or African American Alone was the third largest racial group with a population of 99,258 (6.14%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Middlesex County, Massachusetts in 2021, with a population of 1,125,318 (69.58%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 222,448 (13.76%); and the third largest ethnic group was White Alone - Hispanic with a population of 119,778 (7.41%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Middlesex, Massachusetts.

You can find similar information for other Massachusetts counties, and for Massachusetts.

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Hispanics and Non Hispanics in Middlesex County, MA in 2021
Total Population:
Race in Middlesex County, MA in 2021
Total Population:
Ethnicity in Middlesex County, MA in 2021
Total Population:
Population By Race in Middlesex , MA in 2021
Race Population Percentage
Black or African American Alone 99,258 6.14%
White Alone 1,245,096 76.99%
American Indian and Alaska Native Alone 4,716 0.29%
Asian Alone 224,358 13.87%
Native Hawaiian And Pacific Islander Alone 1,118 0.07%
Two Or More Races 42,716 2.64%
Population By Ethnicity in Middlesex , MA in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 12,986 0.8%
White Alone - Hispanic 119,778 7.41%
American Indian and Alaska Native Alone - Hispanic 2,690 0.17%
Asian Alone - Hispanic 1,910 0.12%
Native Hawaiian And Pacific Islander Alone - Hispanic 652 0.04%
Two Or More Races - Hispanic 7,097 0.44%
Black or African American Alone - Non Hispanic 86,272 5.33%
White Alone - Non Hispanic 1,125,318 69.58%
American Indian and Alaska Native Alone - Non Hispanic 2,026 0.13%
Asian Alone - Non Hispanic 222,448 13.76%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 466 0.03%
Two Or More Races - Non Hispanic 35,619 2.2%