Population By Race and Ethnicity in Jefferson County, IL in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 38,290 population of Jefferson County, Illinois comprised of 920 people who identified as Hispanic (2.4%), and 37,370 people who identified as Non-Hispanic (97.6%).

Race: The White Alone population was the largest racial group in Jefferson County, Illinois with a population of 33,545 (87.61%); Black or African American Alone population was the second largest racial group with a population of 3,451 (9.01%); and Two Or More Races was the third largest racial group with a population of 730 (1.91%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Illinois in 2015, with a population of 32,869 (85.84%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 3,327 (8.69%); and the third largest ethnic group was White Alone - Hispanic with a population of 676 (1.77%).

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 2015
Total Population:
Race in Jefferson County, IL in 2015
Total Population:
Ethnicity in Jefferson County, IL in 2015
Total Population:
Population By Race in Jefferson , IL in 2015
Race Population Percentage
Black or African American Alone 3,451 9.01%
White Alone 33,545 87.61%
American Indian and Alaska Native Alone 128 0.33%
Asian Alone 424 1.11%
Native Hawaiian And Pacific Islander Alone 12 0.03%
Two Or More Races 730 1.91%
Population By Ethnicity in Jefferson , IL in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 124 0.32%
White Alone - Hispanic 676 1.77%
American Indian and Alaska Native Alone - Hispanic 46 0.12%
Asian Alone - Hispanic 4 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 1 0%
Two Or More Races - Hispanic 69 0.18%
Black or African American Alone - Non Hispanic 3,327 8.69%
White Alone - Non Hispanic 32,869 85.84%
American Indian and Alaska Native Alone - Non Hispanic 82 0.21%
Asian Alone - Non Hispanic 420 1.1%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 11 0.03%
Two Or More Races - Non Hispanic 661 1.73%