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.

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Hispanics and Non Hispanics in Williamson County, TX in 2020
Total Population:615,552
75.8%24.2%
Non Hispanic (75.8%)
Hispanic (24.2%)
Race in Williamson County, TX in 2020
Total Population:615,552
79.61%8.73%
White Alone (79.61%)
Asian Alone (8.73%)
Black or African American Alone (7.62%)
Two or more races (3.01%)
American Indian and Alaska Native Alone (0.87%)
Native Hawaiian And Pacific Islander Alone (0.17%)
Ethnicity in Williamson County, TX in 2020
Total Population:615,552
57.64%21.98%8.49%
Non-Hispanic White Alone (57.64%)
Hispanic White Alone (21.98%)
Non-Hispanic Asian Alone (8.49%)
Non-Hispanic Black or African American Alone (6.9%)
All Other Ethnicities (2.66%)
Non-Hispanic Two or more races (2.34%)
Population By Race in Williamson , TX in 2020
Race
Population
Percentage
White Alone 490,069 79.61%
Asian Alone 53,718 8.73%
Black or African American Alone 46,880 7.62%
Two Or More Races 18,498 3.01%
American Indian and Alaska Native Alone 5,346 0.87%
Native Hawaiian And Pacific Islander Alone 1,041 0.17%
Population By Ethnicity in Williamson , TX in 2020
Ethnicity
Population
Percentage
White Alone - Non Hispanic 354,777 57.64%
White Alone - Hispanic 135,292 21.98%
Asian Alone - Non Hispanic 52,271 8.49%
Black or African American Alone - Non Hispanic 42,468 6.9%
Two Or More Races - Non Hispanic 14,379 2.34%
Black or African American Alone - Hispanic 4,412 0.72%
Two Or More Races - Hispanic 4,119 0.67%
American Indian and Alaska Native Alone - Hispanic 3,346 0.54%
American Indian and Alaska Native Alone - Non Hispanic 2,000 0.33%
Asian Alone - Hispanic 1,447 0.24%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 677 0.11%
Native Hawaiian And Pacific Islander Alone - Hispanic 364 0.06%