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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Williamson County, TX in 2015

Total Population:507,728

Non Hispanic (75.98%)

Hispanic (24.02%)

Race in Williamson County, TX in 2015

Total Population:507,728

White Alone (83.07%)

Black or African American Alone (6.77%)

Asian Alone (6.46%)

Two or more races (2.66%)

American Indian and Alaska Native Alone (0.89%)

Native Hawaiian And Pacific Islander Alone (0.15%)

Ethnicity in Williamson County, TX in 2015

Total Population:507,728

Non-Hispanic White Alone (61.14%)

Hispanic White Alone (21.93%)

Non-Hispanic Asian Alone (6.26%)

Non-Hispanic Black or African American Alone (6.1%)

All Other Ethnicities (2.52%)

Non-Hispanic Two or more races (2.05%)

Population By Race in Williamson , TX in 2015

Race	Population	Percentage
White Alone	421,757	83.07%
Black or African American Alone	34,361	6.77%
Asian Alone	32,816	6.46%
Two Or More Races	13,523	2.66%
American Indian and Alaska Native Alone	4,526	0.89%
Native Hawaiian And Pacific Islander Alone	745	0.15%

Population By Ethnicity in Williamson , TX in 2015

Ethnicity	Population	Percentage
White Alone - Non Hispanic	310,432	61.14%
White Alone - Hispanic	111,325	21.93%
Asian Alone - Non Hispanic	31,790	6.26%
Black or African American Alone - Non Hispanic	30,948	6.1%
Two Or More Races - Non Hispanic	10,426	2.05%
Black or African American Alone - Hispanic	3,413	0.67%
Two Or More Races - Hispanic	3,097	0.61%
American Indian and Alaska Native Alone - Hispanic	2,862	0.56%
American Indian and Alaska Native Alone - Non Hispanic	1,664	0.33%
Asian Alone - Hispanic	1,026	0.2%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	490	0.1%
Native Hawaiian And Pacific Islander Alone - Hispanic	255	0.05%