Population By Race and Ethnicity in Middlesex, MA in 2019

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2019, the 1,611,263 population of Middlesex County, Massachusetts comprised of 132,328 people who identified as Hispanic (8.21%), and 1,478,935 people who identified as Non-Hispanic (91.79%).

Race: The White Alone population was the largest racial group in Middlesex County, Massachusetts with a population of 1,256,245 (77.97%); Asian Alone population was the second largest racial group with a population of 213,531 (13.25%); and Black or African American Alone was the third largest racial group with a population of 95,927 (5.95%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Middlesex County, Massachusetts in 2019, with a population of 1,146,081 (71.13%); the second largest ethnic group was Asian Alone - Non Hispanic with a population of 211,813 (13.15%); and the third largest ethnic group was White Alone - Hispanic with a population of 110,164 (6.84%).

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, MA in 2019
Total Population:
Race in Middlesex, MA in 2019
Total Population:
Ethnicity in Middlesex, MA in 2019
Total Population:
Population By Race in Middlesex , MA in 2019
Race Population Percentage
Black or African American Alone 95,927 5.95%
White Alone 1,256,245 77.97%
American Indian and Alaska Native Alone 4,347 0.27%
Asian Alone 213,531 13.25%
Native Hawaiian And Pacific Islander Alone 1,072 0.07%
Two Or More Races 40,141 2.49%
Population By Ethnicity in Middlesex , MA in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 11,274 0.7%
White Alone - Hispanic 110,164 6.84%
American Indian and Alaska Native Alone - Hispanic 2,379 0.15%
Asian Alone - Hispanic 1,718 0.11%
Native Hawaiian And Pacific Islander Alone - Hispanic 625 0.04%
Two Or More Races - Hispanic 6,168 0.38%
Black or African American Alone - Non Hispanic 84,653 5.25%
White Alone - Non Hispanic 1,146,081 71.13%
American Indian and Alaska Native Alone - Non Hispanic 1,968 0.12%
Asian Alone - Non Hispanic 211,813 13.15%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 447 0.03%
Two Or More Races - Non Hispanic 33,973 2.11%