Harris County, Texas 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 Harris County, TX was 2.77M. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (1.05M) and constituted 37.77% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (876.29K) and constituted 31.67% of the total. The Non-Hispanic Black or African American Alone ethnicity group had the third highest (614.72K), constituting 22.21% 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 Texas counties, and for Texas.

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

See this for other years:

Harris County, Texas Citizen Voting-age Population By Race and Ethnicity in 2021

Non-Hispanic White Alone

Hispanic or Latino of All Races

Non-Hispanic Black Alone

Non-Hispanic Asian Alone

Non-Hispanic Two Or More Races

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Native Hawaiian & Pac. Islander Alone

Harris County, Texas 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	1045100	37.77
Hispanic or Latino of All Races	876285	31.67
Non-Hispanic Black or African American Alone	614715	22.21
Non-Hispanic Asian Alone	181430	6.56
Non-Hispanic Two Or More Races	43125	1.56
Non-Hispanic American Indian and Alaska Native Alone	5060	0.18
Non-Hispanic Native Hawaiian And Pacific Islander Alone	1525	0.06