Population By Race and Ethnicity in Jefferson County, IL in 2020

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the 36,995 population of Jefferson County, Illinois comprised of 942 people who identified as Hispanic (2.55%), and 36,053 people who identified as Non-Hispanic (97.45%).

Race: The White Alone population was the largest racial group in Jefferson County, Illinois with a population of 32,439 (87.69%); Black or African American Alone population was the second largest racial group with a population of 3,098 (8.37%); and Two Or More Races was the third largest racial group with a population of 847 (2.29%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Illinois in 2020, with a population of 31,820 (86.01%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 2,960 (8%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 733 (1.98%).

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

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

See this for other years:
Hispanics and Non Hispanics in Jefferson County, IL in 2020
Total Population:
Race in Jefferson County, IL in 2020
Total Population:
Ethnicity in Jefferson County, IL in 2020
Total Population:
Population By Race in Jefferson , IL in 2020
Race Population Percentage
Black or African American Alone 3,098 8.37%
White Alone 32,439 87.69%
American Indian and Alaska Native Alone 147 0.4%
Asian Alone 450 1.22%
Native Hawaiian And Pacific Islander Alone 14 0.04%
Two Or More Races 847 2.29%
Population By Ethnicity in Jefferson , IL in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 138 0.37%
White Alone - Hispanic 619 1.67%
American Indian and Alaska Native Alone - Hispanic 52 0.14%
Asian Alone - Hispanic 17 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 114 0.31%
Black or African American Alone - Non Hispanic 2,960 8%
White Alone - Non Hispanic 31,820 86.01%
American Indian and Alaska Native Alone - Non Hispanic 95 0.26%
Asian Alone - Non Hispanic 433 1.17%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 12 0.03%
Two Or More Races - Non Hispanic 733 1.98%