Population By Race and Ethnicity in St. Charles County, MO in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 398,656 population of St. Charles County, Missouri comprised of 13,490 people who identified as Hispanic (3.38%), and 385,166 people who identified as Non-Hispanic (96.62%).

Race: The White Alone population was the largest racial group in St. Charles County, Missouri with a population of 358,434 (89.91%); Black or African American Alone population was the second largest racial group with a population of 20,292 (5.09%); and Asian Alone was the third largest racial group with a population of 10,550 (2.65%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Charles County, Missouri in 2018, with a population of 346,521 (86.92%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 19,828 (4.97%); and the third largest ethnic group was White Alone - Hispanic with a population of 11,913 (2.99%).

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.

See this for other years:
Hispanics and Non Hispanics in St. Charles County, MO in 2018
Total Population:
Race in St. Charles County, MO in 2018
Total Population:
Ethnicity in St. Charles County, MO in 2018
Total Population:
Population By Race in St. Charles , MO in 2018
Race Population Percentage
Black or African American Alone 20,292 5.09%
White Alone 358,434 89.91%
American Indian and Alaska Native Alone 970 0.24%
Asian Alone 10,550 2.65%
Native Hawaiian And Pacific Islander Alone 251 0.06%
Two Or More Races 8,159 2.05%
Population By Ethnicity in St. Charles , MO in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 464 0.12%
White Alone - Hispanic 11,913 2.99%
American Indian and Alaska Native Alone - Hispanic 316 0.08%
Asian Alone - Hispanic 171 0.04%
Native Hawaiian And Pacific Islander Alone - Hispanic 64 0.02%
Two Or More Races - Hispanic 562 0.14%
Black or African American Alone - Non Hispanic 19,828 4.97%
White Alone - Non Hispanic 346,521 86.92%
American Indian and Alaska Native Alone - Non Hispanic 654 0.16%
Asian Alone - Non Hispanic 10,379 2.6%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 187 0.05%
Two Or More Races - Non Hispanic 7,597 1.91%