Population By Race and Ethnicity in Williamson County, TX in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 507,728 population of Williamson County, Texas comprised of 121,978 people who identified as Hispanic (24.02%), and 385,750 people who identified as Non-Hispanic (75.98%).

Race: The White Alone population was the largest racial group in Williamson County, Texas with a population of 421,757 (83.07%); Black or African American Alone population was the second largest racial group with a population of 34,361 (6.77%); and Asian Alone was the third largest racial group with a population of 32,816 (6.46%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Williamson County, Texas in 2015, with a population of 310,432 (61.14%); the second largest ethnic group was White Alone - Hispanic with a population of 111,325 (21.93%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 31,790 (6.26%).

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 2015
Total Population:
Race in Williamson County, TX in 2015
Total Population:
Ethnicity in Williamson County, TX in 2015
Total Population:
Population By Race in Williamson , TX in 2015
Race Population Percentage
Black or African American Alone 34,361 6.77%
White Alone 421,757 83.07%
American Indian and Alaska Native Alone 4,526 0.89%
Asian Alone 32,816 6.46%
Native Hawaiian And Pacific Islander Alone 745 0.15%
Two Or More Races 13,523 2.66%
Population By Ethnicity in Williamson , TX in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 3,413 0.67%
White Alone - Hispanic 111,325 21.93%
American Indian and Alaska Native Alone - Hispanic 2,862 0.56%
Asian Alone - Hispanic 1,026 0.2%
Native Hawaiian And Pacific Islander Alone - Hispanic 255 0.05%
Two Or More Races - Hispanic 3,097 0.61%
Black or African American Alone - Non Hispanic 30,948 6.1%
White Alone - Non Hispanic 310,432 61.14%
American Indian and Alaska Native Alone - Non Hispanic 1,664 0.33%
Asian Alone - Non Hispanic 31,790 6.26%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 490 0.1%
Two Or More Races - Non Hispanic 10,426 2.05%