Population By Race and Ethnicity in Williamson County, TX in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 567,465 population of Williamson County, Texas comprised of 140,048 people who identified as Hispanic (24.68%), and 427,417 people who identified as Non-Hispanic (75.32%).

Race: The White Alone population was the largest racial group in Williamson County, Texas with a population of 459,997 (81.06%); Asian Alone population was the second largest racial group with a population of 44,166 (7.78%); and Black or African American Alone was the third largest racial group with a population of 41,095 (7.24%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Williamson County, Texas in 2018, with a population of 332,503 (58.59%); the second largest ethnic group was White Alone - Hispanic with a population of 127,494 (22.47%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 42,883 (7.56%).

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 2018

Total Population:567,465

Non Hispanic (75.32%)

Hispanic (24.68%)

Race in Williamson County, TX in 2018

Total Population:567,465

White Alone (81.06%)

Asian Alone (7.78%)

Black or African American Alone (7.24%)

Two or more races (2.87%)

American Indian and Alaska Native Alone (0.88%)

Native Hawaiian And Pacific Islander Alone (0.16%)

Ethnicity in Williamson County, TX in 2018

Total Population:567,465

Non-Hispanic White Alone (58.59%)

Hispanic White Alone (22.47%)

Non-Hispanic Asian Alone (7.56%)

Non-Hispanic Black or African American Alone (6.52%)

All Other Ethnicities (2.65%)

Non-Hispanic Two or more races (2.21%)

Population By Race in Williamson , TX in 2018

Race	Population	Percentage
White Alone	459,997	81.06%
Asian Alone	44,166	7.78%
Black or African American Alone	41,095	7.24%
Two Or More Races	16,284	2.87%
American Indian and Alaska Native Alone	4,996	0.88%
Native Hawaiian And Pacific Islander Alone	927	0.16%

Population By Ethnicity in Williamson , TX in 2018

Ethnicity	Population	Percentage
White Alone - Non Hispanic	332,503	58.59%
White Alone - Hispanic	127,494	22.47%
Asian Alone - Non Hispanic	42,883	7.56%
Black or African American Alone - Non Hispanic	37,023	6.52%
Two Or More Races - Non Hispanic	12,545	2.21%
Black or African American Alone - Hispanic	4,072	0.72%
Two Or More Races - Hispanic	3,739	0.66%
American Indian and Alaska Native Alone - Hispanic	3,148	0.56%
American Indian and Alaska Native Alone - Non Hispanic	1,848	0.33%
Asian Alone - Hispanic	1,283	0.23%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	615	0.11%
Native Hawaiian And Pacific Islander Alone - Hispanic	312	0.06%