Population By Race and Ethnicity in Jefferson County, IL in 2011

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2011, the 38,758 population of Jefferson County, Illinois comprised of 838 people who identified as Hispanic (2.16%), and 37,920 people who identified as Non-Hispanic (97.84%).

Race: The White Alone population was the largest racial group in Jefferson County, Illinois with a population of 34,373 (88.69%); Black or African American Alone population was the second largest racial group with a population of 3,333 (8.6%); and Two Or More Races was the third largest racial group with a population of 618 (1.6%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Illinois in 2011, with a population of 33,726 (87.02%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 3,230 (8.33%); and the third largest ethnic group was White Alone - Hispanic with a population of 647 (1.67%).

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 2011
Total Population:
Race in Jefferson County, IL in 2011
Total Population:
Ethnicity in Jefferson County, IL in 2011
Total Population:
Population By Race in Jefferson , IL in 2011
Race Population Percentage
Black or African American Alone 3,333 8.6%
White Alone 34,373 88.69%
American Indian and Alaska Native Alone 118 0.3%
Asian Alone 308 0.8%
Native Hawaiian And Pacific Islander Alone 8 0.02%
Two Or More Races 618 1.6%
Population By Ethnicity in Jefferson , IL in 2011
Ethnicity Population Percentage
Black or African American Alone - Hispanic 103 0.27%
White Alone - Hispanic 647 1.67%
American Indian and Alaska Native Alone - Hispanic 41 0.11%
Asian Alone - Hispanic 2 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 1 0%
Two Or More Races - Hispanic 44 0.11%
Black or African American Alone - Non Hispanic 3,230 8.33%
White Alone - Non Hispanic 33,726 87.02%
American Indian and Alaska Native Alone - Non Hispanic 77 0.2%
Asian Alone - Non Hispanic 306 0.79%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 7 0.02%
Two Or More Races - Non Hispanic 574 1.48%