St Charles, Missouri Census 2020 Population By Race and Ethnicity

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 405.26K population of St Charles, MO residents comprised of 16.01K residents who identified as Hispanic or Latino (3.95%), and 389.25K residents who identified as Non-Hispanic (96.05%).

Race: The White Alone population was the largest racial group in St Charles, MO, with a population of 339.67K (83.81%). The Two Or More Races population was the second largest racial group in St Charles, MO, with a population of 26.24K (6.47%). The Black or African American Alone population was the third largest racial group in St Charles, MO, with a population of 20.89K (5.16%). The smallest racial group in St Charles, MO was Native Hawaiian And Pacific Islander Alone with a population of 230 (0.06%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in St Charles, MO, with a population of 335.88K (82.88%). The Non-Hispanic - Black Alone population was the second largest ethnic group in St Charles, MO, with a population of 20.67K (5.10%). The Non-Hispanic - Two or More Races population was the third largest ethnic group in St Charles, MO, with a population of 19.43K (4.80%). The smallest ethnic group in St Charles, MO was Hispanic - Native Hawaiian & Pac. Islander with a population of 31 (0.01%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in St Charles, Missouri from the 2020 decennial census.

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

St Charles, MO Hispanics and Non Hispanics Population in Census 2020
Total Population:
St Charles, MO Racial Groups in Census 2020
Total Population:
St Charles, MO Ethnicity Groups in Census 2020
Total Population:
St Charles, MO Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 20894 5.16
White Alone 339665 83.81
American Indian and Alaska Native Alone 910 0.23
Asian Alone 11147 2.75
Native Hawaiian And Pacific Islander Alone 230 0.06
Some Other Race Alone 6180 1.53
Two Or More Races 26236 6.47
St Charles, MO Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 335879 82.88
Non-Hispanic - Black Alone 20672 5.10
Non-Hispanic - Two or More Races 19433 4.80
Non-Hispanic - Asian Alone 11068 2.73
Hispanic - Two or More Races 6803 1.68
Hispanic - Some Other Race Alone 4803 1.19
Hispanic - White Alone 3786 0.93
Non-Hispanic - Some Other Race Alone 1377 0.34
Non-Hispanic - American Indian & Alaska Native 623 0.15
Hispanic - American Indian & Alaska Native 287 0.07
Hispanic - Black Alone 222 0.06
Non-Hispanic - Native Hawaiian & Pac. Islander 199 0.05
Hispanic - Asian Alone 79 0.02
Hispanic - Native Hawaiian & Pac. Islander 31 0.01