Population By Race and Ethnicity in Johnson County, IL in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 12,598 population of Johnson County, Illinois comprised of 386 people who identified as Hispanic (3.06%), and 12,212 people who identified as Non-Hispanic (96.94%).

Race: The White Alone population was the largest racial group in Johnson County, Illinois with a population of 11,378 (90.32%); Black or African American Alone population was the second largest racial group with a population of 1,033 (8.2%); and Two Or More Races was the third largest racial group with a population of 112 (0.89%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Johnson County, Illinois in 2010, with a population of 11,056 (87.76%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 1,007 (7.99%); and the third largest ethnic group was White Alone - Hispanic with a population of 322 (2.56%).

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.

See this for other years:
Hispanics and Non Hispanics in Johnson County, IL in 2010
Total Population:
Race in Johnson County, IL in 2010
Total Population:
Ethnicity in Johnson County, IL in 2010
Total Population:
Population By Race in Johnson , IL in 2010
Race Population Percentage
Black or African American Alone 1,033 8.2%
White Alone 11,378 90.32%
American Indian and Alaska Native Alone 42 0.33%
Asian Alone 29 0.23%
Native Hawaiian And Pacific Islander Alone 4 0.03%
Two Or More Races 112 0.89%
Population By Ethnicity in Johnson , IL in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 26 0.21%
White Alone - Hispanic 322 2.56%
American Indian and Alaska Native Alone - Hispanic 23 0.18%
Asian Alone - Hispanic 6 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 3 0.02%
Two Or More Races - Hispanic 6 0.05%
Black or African American Alone - Non Hispanic 1,007 7.99%
White Alone - Non Hispanic 11,056 87.76%
American Indian and Alaska Native Alone - Non Hispanic 19 0.15%
Asian Alone - Non Hispanic 23 0.18%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 1 0.01%
Two Or More Races - Non Hispanic 106 0.84%