Population By Race and Ethnicity in Williamson County, IL in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 66,633 population of Williamson County, Illinois comprised of 1,844 people who identified as Hispanic (2.77%), and 64,789 people who identified as Non-Hispanic (97.23%).

Race: The White Alone population was the largest racial group in Williamson County, Illinois with a population of 61,028 (91.59%); Black or African American Alone population was the second largest racial group with a population of 3,134 (4.7%); and Two Or More Races was the third largest racial group with a population of 1,274 (1.91%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Williamson County, Illinois in 2019, with a population of 59,463 (89.24%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 3,023 (4.54%); and the third largest ethnic group was White Alone - Hispanic with a population of 1,565 (2.35%).

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

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

See this for other years:
Hispanics and Non Hispanics in Williamson County, IL in 2019
Total Population:
Race in Williamson County, IL in 2019
Total Population:
Ethnicity in Williamson County, IL in 2019
Total Population:
Population By Race in Williamson , IL in 2019
Race Population Percentage
Black or African American Alone 3,134 4.7%
White Alone 61,028 91.59%
American Indian and Alaska Native Alone 308 0.46%
Asian Alone 873 1.31%
Native Hawaiian And Pacific Islander Alone 16 0.02%
Two Or More Races 1,274 1.91%
Population By Ethnicity in Williamson , IL in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 111 0.17%
White Alone - Hispanic 1,565 2.35%
American Indian and Alaska Native Alone - Hispanic 81 0.12%
Asian Alone - Hispanic 8 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 4 0.01%
Two Or More Races - Hispanic 75 0.11%
Black or African American Alone - Non Hispanic 3,023 4.54%
White Alone - Non Hispanic 59,463 89.24%
American Indian and Alaska Native Alone - Non Hispanic 227 0.34%
Asian Alone - Non Hispanic 865 1.3%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 12 0.02%
Two Or More Races - Non Hispanic 1,199 1.8%