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

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 995,900 population of St. Louis County, Missouri comprised of 29,330 people who identified as Hispanic (2.95%), and 966,570 people who identified as Non-Hispanic (97.06%).

Race: The White Alone population was the largest racial group in St. Louis County, Missouri with a population of 679,285 (68.21%); Black or African American Alone population was the second largest racial group with a population of 246,579 (24.76%); and Asian Alone was the third largest racial group with a population of 45,366 (4.56%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Louis County, Missouri in 2018, with a population of 654,100 (65.68%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 244,505 (24.55%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 45,255 (4.54%).

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

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

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Hispanics and Non Hispanics in St. Louis County, MO in 2018
Total Population:
Race in St. Louis County, MO in 2018
Total Population:
Ethnicity in St. Louis County, MO in 2018
Total Population:
Population By Race in St. Louis , MO in 2018
Race Population Percentage
Black or African American Alone 246,579 24.76%
White Alone 679,285 68.21%
American Indian and Alaska Native Alone 2,118 0.21%
Asian Alone 45,366 4.56%
Native Hawaiian And Pacific Islander Alone 227 0.02%
Two Or More Races 22,325 2.24%
Population By Ethnicity in St. Louis , MO in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 2,074 0.21%
White Alone - Hispanic 25,185 2.53%
American Indian and Alaska Native Alone - Hispanic 480 0.05%
Asian Alone - Hispanic 111 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 60 0.01%
Two Or More Races - Hispanic 1,420 0.14%
Black or African American Alone - Non Hispanic 244,505 24.55%
White Alone - Non Hispanic 654,100 65.68%
American Indian and Alaska Native Alone - Non Hispanic 1,638 0.16%
Asian Alone - Non Hispanic 45,255 4.54%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 167 0.02%
Two Or More Races - Non Hispanic 20,905 2.1%