Population By Race and Ethnicity in Johnson, IL in 2021

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2021, the 13,472 population of Johnson County, Illinois comprised of 588 people who identified as Hispanic (4.37%), and 12,884 people who identified as Non-Hispanic (95.64%).

Race: The White Alone population was the largest racial group in Johnson County, Illinois with a population of 11,354 (84.28%); Black or African American Alone population was the second largest racial group with a population of 1,848 (13.72%); and Two Or More Races was the third largest racial group with a population of 155 (1.15%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Johnson County, Illinois in 2021, with a population of 10,884 (80.79%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 1,786 (13.26%); and the third largest ethnic group was White Alone - Hispanic with a population of 470 (3.49%).

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

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

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Hispanics and Non Hispanics in Johnson, IL in 2021
Total Population:
Race in Johnson, IL in 2021
Total Population:
Ethnicity in Johnson, IL in 2021
Total Population:
Population By Race in Johnson , IL in 2021
Race Population Percentage
Black or African American Alone 1,848 13.72%
White Alone 11,354 84.28%
American Indian and Alaska Native Alone 64 0.48%
Asian Alone 44 0.33%
Native Hawaiian And Pacific Islander Alone 7 0.05%
Two Or More Races 155 1.15%
Population By Ethnicity in Johnson , IL in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 62 0.46%
White Alone - Hispanic 470 3.49%
American Indian and Alaska Native Alone - Hispanic 36 0.27%
Asian Alone - Hispanic 11 0.08%
Native Hawaiian And Pacific Islander Alone - Hispanic 6 0.05%
Two Or More Races - Hispanic 3 0.02%
Black or African American Alone - Non Hispanic 1,786 13.26%
White Alone - Non Hispanic 10,884 80.79%
American Indian and Alaska Native Alone - Non Hispanic 28 0.21%
Asian Alone - Non Hispanic 33 0.25%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 1 0.01%
Two Or More Races - Non Hispanic 152 1.13%