Johnson County, Illinois Population By Race and Ethnicity in 2021 (ACS-5Yrs)

Updated on July 13, 2024.

Based on the US Census ACS-5Yrs estimates, in 2021, the total Johnson County, IL population was 13,238. The White Alone racial group had the highest population (11.64K) and constituted 87.93% of the total Johnson County population. The Black or African American Alone racial group had the second highest population (1.21K) and constituted 9.10% of the population. The third highest racial group was Two Or More Races (215), constituting 1.62% of the population.

The population of the Non-Hispanic White Alone ethnicity group was 11.44K and constituted 86.45% of the population. The population of the Hispanic or Latino of All Races ethnicity group was (409) and constituted 3.09% of the population.

The charts and tables below shows the population and percentages by race and ethnicity.

Note: Missing racial or ethnicity groups means there was not enough information for an estimate.

You can also see similar information for other Illinois counties, and for Illinois.

Data Source: US Census - ACS 5-Year Estimates.

Johnson County, Illinois Population By Race in 2021

White Alone

Black or African American Alone

Two Or More Races

Some Other Race Alone

Asian Alone

Johnson County, Illinois Population By Ethnicity in 2021

Non-Hispanic White Alone

Hispanic or Latino of All Races

Johnson County, Illinois Population By Race in 2021

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Race	Population	% of Total Pop.
White Alone	11640	87.93
Black or African American Alone	1205	9.10
Two Or More Races	215	1.62
Some Other Race Alone	140	1.06
Asian Alone	38	0.29

Johnson County, Illinois Population By Ethnicity in 2021

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Ethnicity	Population	% of Total Pop.
Non-Hispanic White Alone	11444	86.45
Hispanic or Latino of All Races	409	3.09