Harris County, Texas Citizen Voting-age Population By Race and Ethnicity in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen voting-age population for Harris County, TX was 2.66M. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (1.08M) and constituted 40.59% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (774.16K) and constituted 29.08% of the total. The Non-Hispanic Black or African American Alone ethnicity group had the third highest (598.09K), constituting 22.47% 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 2018

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 2018

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	1080620	40.59
Hispanic or Latino of All Races	774160	29.08
Non-Hispanic Black or African American Alone	598090	22.47
Non-Hispanic Asian Alone	170135	6.39
Non-Hispanic Two Or More Races	31175	1.17
Non-Hispanic American Indian and Alaska Native Alone	6230	0.23
Non-Hispanic Native Hawaiian And Pacific Islander Alone	1610	0.06