Population By Race and Ethnicity in Dekalb, IL in 2019

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2019, the 105,131 population of Dekalb County, Illinois comprised of 12,277 people who identified as Hispanic (11.68%), and 92,854 people who identified as Non-Hispanic (88.32%).

Race: The White Alone population was the largest racial group in Dekalb County, Illinois with a population of 90,619 (86.2%); Black or African American Alone population was the second largest racial group with a population of 8,794 (8.37%); and Asian Alone was the third largest racial group with a population of 2,919 (2.78%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Dekalb County, Illinois in 2019, with a population of 79,586 (75.7%); the second largest ethnic group was White Alone - Hispanic with a population of 11,033 (10.5%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 8,447 (8.04%).

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, IL in 2019
Total Population:
Race in Dekalb, IL in 2019
Total Population:
Ethnicity in Dekalb, IL in 2019
Total Population:
Population By Race in Dekalb , IL in 2019
Race Population Percentage
Black or African American Alone 8,794 8.37%
White Alone 90,619 86.2%
American Indian and Alaska Native Alone 486 0.46%
Asian Alone 2,919 2.78%
Native Hawaiian And Pacific Islander Alone 92 0.09%
Two Or More Races 2,221 2.11%
Population By Ethnicity in Dekalb , IL in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 347 0.33%
White Alone - Hispanic 11,033 10.5%
American Indian and Alaska Native Alone - Hispanic 331 0.32%
Asian Alone - Hispanic 175 0.17%
Native Hawaiian And Pacific Islander Alone - Hispanic 44 0.04%
Two Or More Races - Hispanic 347 0.33%
Black or African American Alone - Non Hispanic 8,447 8.04%
White Alone - Non Hispanic 79,586 75.7%
American Indian and Alaska Native Alone - Non Hispanic 155 0.15%
Asian Alone - Non Hispanic 2,744 2.61%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 48 0.05%
Two Or More Races - Non Hispanic 1,874 1.78%