Population By Race and Ethnicity in St. Charles County, MO in 2020

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the 406,417 population of St. Charles County, Missouri comprised of 16,116 people who identified as Hispanic (3.97%), and 390,301 people who identified as Non-Hispanic (96.04%).

Race: The White Alone population was the largest racial group in St. Charles County, Missouri with a population of 362,806 (89.27%); Black or African American Alone population was the second largest racial group with a population of 22,017 (5.42%); and Asian Alone was the third largest racial group with a population of 11,496 (2.83%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Charles County, Missouri in 2020, with a population of 348,523 (85.76%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 21,455 (5.28%); and the third largest ethnic group was White Alone - Hispanic with a population of 14,283 (3.51%).

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

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

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Hispanics and Non Hispanics in St. Charles County, MO in 2020
Total Population:
Race in St. Charles County, MO in 2020
Total Population:
Ethnicity in St. Charles County, MO in 2020
Total Population:
Population By Race in St. Charles , MO in 2020
Race Population Percentage
Black or African American Alone 22,017 5.42%
White Alone 362,806 89.27%
American Indian and Alaska Native Alone 1,027 0.25%
Asian Alone 11,496 2.83%
Native Hawaiian And Pacific Islander Alone 260 0.06%
Two Or More Races 8,811 2.17%
Population By Ethnicity in St. Charles , MO in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 562 0.14%
White Alone - Hispanic 14,283 3.51%
American Indian and Alaska Native Alone - Hispanic 365 0.09%
Asian Alone - Hispanic 179 0.04%
Native Hawaiian And Pacific Islander Alone - Hispanic 86 0.02%
Two Or More Races - Hispanic 641 0.16%
Black or African American Alone - Non Hispanic 21,455 5.28%
White Alone - Non Hispanic 348,523 85.76%
American Indian and Alaska Native Alone - Non Hispanic 662 0.16%
Asian Alone - Non Hispanic 11,317 2.79%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 174 0.04%
Two Or More Races - Non Hispanic 8,170 2.01%