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

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 12,380 population of Johnson County, Illinois comprised of 388 people who identified as Hispanic (3.13%), and 11,992 people who identified as Non-Hispanic (96.87%).

Race: The White Alone population was the largest racial group in Johnson County, Illinois with a population of 11,270 (91.03%); Black or African American Alone population was the second largest racial group with a population of 882 (7.12%); and Two Or More Races was the third largest racial group with a population of 137 (1.11%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Johnson County, Illinois in 2018, with a population of 10,948 (88.43%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 854 (6.9%); and the third largest ethnic group was White Alone - Hispanic with a population of 322 (2.6%).

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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Johnson County, IL in 2018

Total Population:12,380

Non Hispanic (96.87%)

Hispanic (3.13%)

Race in Johnson County, IL in 2018

Total Population:12,380

White Alone (91.03%)

Black or African American Alone (7.12%)

Two or more races (1.11%)

American Indian and Alaska Native Alone (0.38%)

Asian Alone (0.32%)

Native Hawaiian And Pacific Islander Alone (0.03%)

Ethnicity in Johnson County, IL in 2018

Total Population:12,380

Non-Hispanic White Alone (88.43%)

Non-Hispanic Black or African American Alone (6.9%)

Hispanic White Alone (2.6%)

Non-Hispanic Two or more races (1.08%)

All Other Ethnicities (0.71%)

Non-Hispanic Asian Alone (0.28%)

Population By Race in Johnson , IL in 2018

Race	Population	Percentage
White Alone	11,270	91.03%
Black or African American Alone	882	7.12%
Two Or More Races	137	1.11%
American Indian and Alaska Native Alone	47	0.38%
Asian Alone	40	0.32%
Native Hawaiian And Pacific Islander Alone	4	0.03%

Population By Ethnicity in Johnson , IL in 2018

Ethnicity	Population	Percentage
White Alone - Non Hispanic	10,948	88.43%
Black or African American Alone - Non Hispanic	854	6.9%
White Alone - Hispanic	322	2.6%
Two Or More Races - Non Hispanic	134	1.08%
Asian Alone - Non Hispanic	34	0.28%
Black or African American Alone - Hispanic	28	0.23%
American Indian and Alaska Native Alone - Hispanic	26	0.21%
American Indian and Alaska Native Alone - Non Hispanic	21	0.17%
Asian Alone - Hispanic	6	0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic	3	0.02%
Two Or More Races - Hispanic	3	0.02%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	1	0.01%