Monroe, Illinois Voting-age Population By Race and Ethnicity from Census 2020

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 27.00K voting-age population of Monroe, IL residents comprised of 418 residents who identified as Hispanic or Latino (1.55%), and 26.58K residents who identified as Non-Hispanic (98.45%).

Race: The White Alone voting-age population was the largest racial group in Monroe, IL, with a voting-age population of 25.57K (94.70%). The Two Or More Races voting-age population was the second largest racial group in Monroe, IL, with a voting-age population of 1.02K (3.79%). The Asian Alone voting-age population was the third largest racial group in Monroe, IL, with a voting-age population of 144 (0.53%). The smallest racial group in Monroe, IL was Native Hawaiian And Pacific Islander Alone with a voting-age population of 2 (0.01%).

Ethnicity: The Non-Hispanic - White Alone voting-age population was the largest ethnic group in Monroe, IL, with a voting-age population of 25.45K (94.26%). The Non-Hispanic - Two or More Races voting-age population was the second largest ethnic group in Monroe, IL, with a voting-age population of 807 (2.99%). The Hispanic - Two or More Races voting-age population was the third largest ethnic group in Monroe, IL, with a voting-age population of 217 (0.80%). The smallest ethnic group in Monroe, IL was Hispanic - Native Hawaiian & Pac. Islander with a voting-age population of 0 (0.00%).

The charts and tables below shows the voting-age population and percentage of each racial group and ethnicity group in Monroe, Illinois from the 2020 decennial census.

You can see similar information for other Illinois counties and also for the state of Illinois.

Monroe, IL Voting-age Hispanics and Non Hispanics Population in Census 2020
Total Voting-age Population:
Monroe, IL Voting-age Racial Groups in Census 2020
Total Voting-age Population:
Monroe, IL Voting-age Ethnicity Groups in Census 2020
Total Voting-age Population:
Monroe, IL Voting-age Population of Racial Groups in Census 2020
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Race Voting-age Population % of County Voting-age Population
Black or African American Alone 90 0.33
White Alone 25566 94.70
American Indian and Alaska Native Alone 47 0.17
Asian Alone 144 0.53
Native Hawaiian And Pacific Islander Alone 2 0.01
Some Other Race Alone 125 0.46
Two Or More Races 1024 3.79
Monroe, IL Voting-age Population of Ethnicity Groups in Census 2020
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Ethnicity Voting-age Population % of County Voting-age Population
Non-Hispanic - White Alone 25449 94.26
Non-Hispanic - Two or More Races 807 2.99
Hispanic - Two or More Races 217 0.80
Non-Hispanic - Asian Alone 144 0.53
Hispanic - White Alone 117 0.43
Non-Hispanic - Black Alone 89 0.33
Hispanic - Some Other Race Alone 76 0.28
Non-Hispanic - Some Other Race Alone 49 0.18
Non-Hispanic - American Indian & Alaska Native 40 0.15
Hispanic - American Indian & Alaska Native 7 0.03
Non-Hispanic - Native Hawaiian & Pac. Islander 2 0.01
Hispanic - Black Alone 1 0.00
Hispanic - Asian Alone 0 0.00
Hispanic - Native Hawaiian & Pac. Islander 0 0.00