Population By Race and Ethnicity in St. Louis County, MO in 2011

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2011, the 1,000,147 population of St. Louis County, Missouri comprised of 25,244 people who identified as Hispanic (2.52%), and 974,903 people who identified as Non-Hispanic (97.48%).

Race: The White Alone population was the largest racial group in St. Louis County, Missouri with a population of 707,240 (70.71%); Black or African American Alone population was the second largest racial group with a population of 235,840 (23.58%); and Asian Alone was the third largest racial group with a population of 36,643 (3.66%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Louis County, Missouri in 2011, with a population of 685,842 (68.57%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 234,004 (23.4%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 36,427 (3.64%).

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 2011
Total Population:
Race in St. Louis County, MO in 2011
Total Population:
Ethnicity in St. Louis County, MO in 2011
Total Population:
Population By Race in St. Louis , MO in 2011
Race Population Percentage
Black or African American Alone 235,840 23.58%
White Alone 707,240 70.71%
American Indian and Alaska Native Alone 2,197 0.22%
Asian Alone 36,643 3.66%
Native Hawaiian And Pacific Islander Alone 260 0.03%
Two Or More Races 17,967 1.8%
Population By Ethnicity in St. Louis , MO in 2011
Ethnicity Population Percentage
Black or African American Alone - Hispanic 1,836 0.18%
White Alone - Hispanic 21,398 2.14%
American Indian and Alaska Native Alone - Hispanic 548 0.06%
Asian Alone - Hispanic 216 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 64 0.01%
Two Or More Races - Hispanic 1,182 0.12%
Black or African American Alone - Non Hispanic 234,004 23.4%
White Alone - Non Hispanic 685,842 68.57%
American Indian and Alaska Native Alone - Non Hispanic 1,649 0.17%
Asian Alone - Non Hispanic 36,427 3.64%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 196 0.02%
Two Or More Races - Non Hispanic 16,785 1.68%