Middlesex County, Massachusetts Citizen Voting-age Population By Race and Ethnicity in 2021 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for Middlesex County, MA was 1.14M. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (900.68K) and constituted 78.94% of the total.

The Non-Hispanic Asian Alone ethnicity group had the second highest citizen voting-age population (99.87K) and constituted 8.75% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (69.52K), constituting 6.09% of the total citizen voting-age population.

The charts and tables below shows the citizen voting-age population and percentages by race and ethnicity.

You can also see similar information for other Massachusetts counties, and for Massachusetts.

Data Source: US Census - ACS 5-Years (CVAP).

See this for other years:

Middlesex County, Massachusetts Citizen Voting-age Population By Race and Ethnicity in 2021

Non-Hispanic White Alone

Non-Hispanic Asian Alone

Hispanic or Latino of All Races

Non-Hispanic Black Alone

Non-Hispanic Two Or More Races

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Native Hawaiian & Pac. Islander Alone

Middlesex County, Massachusetts Citizen Voting-age Population By Race and Ethnicity in 2021

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	900675	78.94
Non-Hispanic Asian Alone	99870	8.75
Hispanic or Latino of All Races	69520	6.09
Non-Hispanic Black or African American Alone	49865	4.37
Non-Hispanic Two Or More Races	19475	1.71
Non-Hispanic American Indian and Alaska Native Alone	1045	0.09
Non-Hispanic Native Hawaiian And Pacific Islander Alone	550	0.05