Population By Race and Ethnicity in Williamson County, IL in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 66,440 population of Williamson County, Illinois comprised of 1,327 people who identified as Hispanic (2%), and 65,113 people who identified as Non-Hispanic (98%).

Race: The White Alone population was the largest racial group in Williamson County, Illinois with a population of 61,988 (93.3%); Black or African American Alone population was the second largest racial group with a population of 2,580 (3.88%); and Two Or More Races was the third largest racial group with a population of 1,009 (1.52%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Williamson County, Illinois in 2010, with a population of 60,816 (91.54%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 2,527 (3.8%); and the third largest ethnic group was White Alone - Hispanic with a population of 1,172 (1.76%).

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 2010
Total Population:
Race in Williamson County, IL in 2010
Total Population:
Ethnicity in Williamson County, IL in 2010
Total Population:
Population By Race in Williamson , IL in 2010
Race Population Percentage
Black or African American Alone 2,580 3.88%
White Alone 61,988 93.3%
American Indian and Alaska Native Alone 265 0.4%
Asian Alone 588 0.89%
Native Hawaiian And Pacific Islander Alone 10 0.02%
Two Or More Races 1,009 1.52%
Population By Ethnicity in Williamson , IL in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 53 0.08%
White Alone - Hispanic 1,172 1.76%
American Indian and Alaska Native Alone - Hispanic 56 0.08%
Asian Alone - Hispanic 8 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0%
Two Or More Races - Hispanic 36 0.05%
Black or African American Alone - Non Hispanic 2,527 3.8%
White Alone - Non Hispanic 60,816 91.54%
American Indian and Alaska Native Alone - Non Hispanic 209 0.32%
Asian Alone - Non Hispanic 580 0.87%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 8 0.01%
Two Or More Races - Non Hispanic 973 1.46%