Population By Race and Ethnicity in DeKalb County, IL in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 104,587 population of DeKalb County, Illinois comprised of 11,984 people who identified as Hispanic (11.46%), and 92,603 people who identified as Non-Hispanic (88.54%).

Race: The White Alone population was the largest racial group in DeKalb County, Illinois with a population of 90,531 (86.56%); Black or African American Alone population was the second largest racial group with a population of 8,466 (8.1%); and Asian Alone was the third largest racial group with a population of 2,891 (2.76%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in DeKalb County, Illinois in 2018, with a population of 79,764 (76.27%); the second largest ethnic group was White Alone - Hispanic with a population of 10,767 (10.3%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 8,110 (7.75%).

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

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

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Hispanics and Non Hispanics in DeKalb County, IL in 2018
Total Population:
Race in DeKalb County, IL in 2018
Total Population:
Ethnicity in DeKalb County, IL in 2018
Total Population:
Population By Race in DeKalb , IL in 2018
Race Population Percentage
Black or African American Alone 8,466 8.1%
White Alone 90,531 86.56%
American Indian and Alaska Native Alone 476 0.46%
Asian Alone 2,891 2.76%
Native Hawaiian And Pacific Islander Alone 86 0.08%
Two Or More Races 2,137 2.04%
Population By Ethnicity in DeKalb , IL in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 356 0.34%
White Alone - Hispanic 10,767 10.3%
American Indian and Alaska Native Alone - Hispanic 326 0.31%
Asian Alone - Hispanic 167 0.16%
Native Hawaiian And Pacific Islander Alone - Hispanic 39 0.04%
Two Or More Races - Hispanic 329 0.32%
Black or African American Alone - Non Hispanic 8,110 7.75%
White Alone - Non Hispanic 79,764 76.27%
American Indian and Alaska Native Alone - Non Hispanic 150 0.14%
Asian Alone - Non Hispanic 2,724 2.61%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 47 0.05%
Two Or More Races - Non Hispanic 1,808 1.73%