Marion, 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 29.15K voting-age population of Marion, IL residents comprised of 426 residents who identified as Hispanic or Latino (1.46%), and 28.72K residents who identified as Non-Hispanic (98.54%).

Race: The White Alone voting-age population was the largest racial group in Marion, IL, with a voting-age population of 26.31K (90.27%). The Two Or More Races voting-age population was the second largest racial group in Marion, IL, with a voting-age population of 1.23K (4.22%). The Black or African American Alone voting-age population was the third largest racial group in Marion, IL, with a voting-age population of 1.03K (3.54%). The smallest racial group in Marion, IL was Native Hawaiian And Pacific Islander Alone with a voting-age population of 4 (0.01%).

Ethnicity: The Non-Hispanic - White Alone voting-age population was the largest ethnic group in Marion, IL, with a voting-age population of 26.15K (89.71%). The Non-Hispanic - Two or More Races voting-age population was the second largest ethnic group in Marion, IL, with a voting-age population of 1.10K (3.77%). The Non-Hispanic - Black Alone voting-age population was the third largest ethnic group in Marion, IL, with a voting-age population of 1.03K (3.53%). The smallest ethnic group in Marion, IL was Hispanic - Asian Alone 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 Marion, Illinois from the 2020 decennial census.

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

Marion, IL Voting-age Hispanics and Non Hispanics Population in Census 2020
Total Voting-age Population:
Marion, IL Voting-age Racial Groups in Census 2020
Total Voting-age Population:
Marion, IL Voting-age Ethnicity Groups in Census 2020
Total Voting-age Population:
Marion, 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 1033 3.54
White Alone 26312 90.27
American Indian and Alaska Native Alone 88 0.30
Asian Alone 311 1.07
Native Hawaiian And Pacific Islander Alone 4 0.01
Some Other Race Alone 168 0.58
Two Or More Races 1231 4.22
Marion, 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 26148 89.71
Non-Hispanic - Two or More Races 1098 3.77
Non-Hispanic - Black Alone 1029 3.53
Non-Hispanic - Asian Alone 311 1.07
Hispanic - White Alone 164 0.56
Hispanic - Two or More Races 133 0.46
Hispanic - Some Other Race Alone 106 0.36
Non-Hispanic - American Indian & Alaska Native 72 0.25
Non-Hispanic - Some Other Race Alone 62 0.21
Hispanic - American Indian & Alaska Native 16 0.06
Hispanic - Black Alone 4 0.01
Hispanic - Native Hawaiian & Pac. Islander 3 0.01
Non-Hispanic - Native Hawaiian & Pac. Islander 1 0.00
Hispanic - Asian Alone 0 0.00