Population By Race and Ethnicity in Williamson County, TX in 2020

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the 615,552 population of Williamson County, Texas comprised of 148,980 people who identified as Hispanic (24.2%), and 466,572 people who identified as Non-Hispanic (75.8%).

Race: The White Alone population was the largest racial group in Williamson County, Texas with a population of 490,069 (79.61%); Asian Alone population was the second largest racial group with a population of 53,718 (8.73%); and Black or African American Alone was the third largest racial group with a population of 46,880 (7.62%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Williamson County, Texas in 2020, with a population of 354,777 (57.64%); the second largest ethnic group was White Alone - Hispanic with a population of 135,292 (21.98%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 52,271 (8.49%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Williamson, Texas.

You can find similar information for other Texas counties, and for Texas.

See this for other years:
Hispanics and Non Hispanics in Williamson County, TX in 2020
Total Population:
Race in Williamson County, TX in 2020
Total Population:
Ethnicity in Williamson County, TX in 2020
Total Population:
Population By Race in Williamson , TX in 2020
Race Population Percentage
Black or African American Alone 46,880 7.62%
White Alone 490,069 79.61%
American Indian and Alaska Native Alone 5,346 0.87%
Asian Alone 53,718 8.73%
Native Hawaiian And Pacific Islander Alone 1,041 0.17%
Two Or More Races 18,498 3.01%
Population By Ethnicity in Williamson , TX in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 4,412 0.72%
White Alone - Hispanic 135,292 21.98%
American Indian and Alaska Native Alone - Hispanic 3,346 0.54%
Asian Alone - Hispanic 1,447 0.24%
Native Hawaiian And Pacific Islander Alone - Hispanic 364 0.06%
Two Or More Races - Hispanic 4,119 0.67%
Black or African American Alone - Non Hispanic 42,468 6.9%
White Alone - Non Hispanic 354,777 57.64%
American Indian and Alaska Native Alone - Non Hispanic 2,000 0.33%
Asian Alone - Non Hispanic 52,271 8.49%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 677 0.11%
Two Or More Races - Non Hispanic 14,379 2.34%