Williamson County, Texas Citizen Voting-age Population By Race and Ethnicity in 2019 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the citizen voting-age population for Williamson County, TX was 371.90K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (248.69K) and constituted 66.87% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (74.41K) and constituted 20.01% of the total. The Non-Hispanic Black or African American Alone ethnicity group had the third highest (24.08K), constituting 6.48% 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:

Williamson County, Texas Citizen Voting-age Population By Race and Ethnicity in 2019

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

Williamson County, Texas Citizen Voting-age Population By Race and Ethnicity in 2019

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	248690	66.87
Hispanic or Latino of All Races	74405	20.01
Non-Hispanic Black or African American Alone	24080	6.48
Non-Hispanic Asian Alone	16010	4.31
Non-Hispanic Two Or More Races	7700	2.07
Non-Hispanic American Indian and Alaska Native Alone	715	0.19
Non-Hispanic Native Hawaiian And Pacific Islander Alone	295	0.08