Population By Race and Ethnicity in St. Charles County, MO in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the 410,465 population of St. Charles County, Missouri comprised of 16,560 people who identified as Hispanic (4.03%), and 393,905 people who identified as Non-Hispanic (95.97%).

Race: The White Alone population was the largest racial group in St. Charles County, Missouri with a population of 364,615 (88.83%); Black or African American Alone population was the second largest racial group with a population of 23,319 (5.68%); and Asian Alone was the third largest racial group with a population of 12,101 (2.95%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Charles County, Missouri in 2021, with a population of 350,007 (85.27%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 22,736 (5.54%); and the third largest ethnic group was White Alone - Hispanic with a population of 14,608 (3.56%).

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 2021
Total Population:
Race in St. Charles County, MO in 2021
Total Population:
Ethnicity in St. Charles County, MO in 2021
Total Population:
Population By Race in St. Charles , MO in 2021
Race Population Percentage
Black or African American Alone 23,319 5.68%
White Alone 364,615 88.83%
American Indian and Alaska Native Alone 1,039 0.25%
Asian Alone 12,101 2.95%
Native Hawaiian And Pacific Islander Alone 279 0.07%
Two Or More Races 9,112 2.22%
Population By Ethnicity in St. Charles , MO in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 583 0.14%
White Alone - Hispanic 14,608 3.56%
American Indian and Alaska Native Alone - Hispanic 380 0.09%
Asian Alone - Hispanic 179 0.04%
Native Hawaiian And Pacific Islander Alone - Hispanic 88 0.02%
Two Or More Races - Hispanic 722 0.18%
Black or African American Alone - Non Hispanic 22,736 5.54%
White Alone - Non Hispanic 350,007 85.27%
American Indian and Alaska Native Alone - Non Hispanic 659 0.16%
Asian Alone - Non Hispanic 11,922 2.91%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 191 0.05%
Two Or More Races - Non Hispanic 8,390 2.04%