Population By Race and Ethnicity in Jefferson, IL in 2018

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2018, the 37,704 population of Jefferson County, Illinois comprised of 1,082 people who identified as Hispanic (2.87%), and 36,622 people who identified as Non-Hispanic (97.13%).

Race: The White Alone population was the largest racial group in Jefferson County, Illinois with a population of 33,005 (87.54%); Black or African American Alone population was the second largest racial group with a population of 3,347 (8.88%); and Two Or More Races was the third largest racial group with a population of 777 (2.06%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Illinois in 2018, with a population of 32,240 (85.51%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 3,193 (8.47%); and the third largest ethnic group was White Alone - Hispanic with a population of 765 (2.03%).

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.

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Hispanics and Non Hispanics in Jefferson, IL in 2018
Total Population:
Race in Jefferson, IL in 2018
Total Population:
Ethnicity in Jefferson, IL in 2018
Total Population:
Population By Race in Jefferson , IL in 2018
Race Population Percentage
Black or African American Alone 3,347 8.88%
White Alone 33,005 87.54%
American Indian and Alaska Native Alone 131 0.35%
Asian Alone 430 1.14%
Native Hawaiian And Pacific Islander Alone 14 0.04%
Two Or More Races 777 2.06%
Population By Ethnicity in Jefferson , IL in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 154 0.41%
White Alone - Hispanic 765 2.03%
American Indian and Alaska Native Alone - Hispanic 51 0.14%
Asian Alone - Hispanic 12 0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic 2 0.01%
Two Or More Races - Hispanic 98 0.26%
Black or African American Alone - Non Hispanic 3,193 8.47%
White Alone - Non Hispanic 32,240 85.51%
American Indian and Alaska Native Alone - Non Hispanic 80 0.21%
Asian Alone - Non Hispanic 418 1.11%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 12 0.03%
Two Or More Races - Non Hispanic 679 1.8%