Population By Race and Ethnicity in Monroe, IL in 2018

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2018, the 34,446 population of Monroe County, Illinois comprised of 539 people who identified as Hispanic (1.57%), and 33,907 people who identified as Non-Hispanic (98.44%).

Race: The White Alone population was the largest racial group in Monroe County, Illinois with a population of 33,678 (97.77%); Two Or More Races population was the second largest racial group with a population of 339 (0.98%); and Asian Alone was the third largest racial group with a population of 199 (0.58%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Monroe County, Illinois in 2018, with a population of 33,200 (96.38%); the second largest ethnic group was White Alone - Hispanic with a population of 478 (1.39%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 318 (0.92%).

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

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

See this for other years:
Hispanics and Non Hispanics in Monroe, IL in 2018
Total Population:
Race in Monroe, IL in 2018
Total Population:
Ethnicity in Monroe, IL in 2018
Total Population:
Population By Race in Monroe , IL in 2018
Race Population Percentage
Black or African American Alone 140 0.41%
White Alone 33,678 97.77%
American Indian and Alaska Native Alone 79 0.23%
Asian Alone 199 0.58%
Native Hawaiian And Pacific Islander Alone 11 0.03%
Two Or More Races 339 0.98%
Population By Ethnicity in Monroe , IL in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 17 0.05%
White Alone - Hispanic 478 1.39%
American Indian and Alaska Native Alone - Hispanic 16 0.05%
Asian Alone - Hispanic 6 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 1 0%
Two Or More Races - Hispanic 21 0.06%
Black or African American Alone - Non Hispanic 123 0.36%
White Alone - Non Hispanic 33,200 96.38%
American Indian and Alaska Native Alone - Non Hispanic 63 0.18%
Asian Alone - Non Hispanic 193 0.56%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 10 0.03%
Two Or More Races - Non Hispanic 318 0.92%