O'Fallon city, Missouri Census 2020 Population By Race and Ethnicity

Updated on September 4, 2023.

According to the data from the US 2020 decennial Census, in April 2020, the 91.32K population of O'Fallon city, MO residents comprised of 3.64K residents who identified as Hispanic or Latino (3.99%), and 87.68K residents who identified as Non-Hispanic (96.02%).

Race: The White Alone population was the largest racial group in O'Fallon city, MO, with a population of 75.13K (82.28%). The Two Or More Races population was the second largest racial group in O'Fallon city, MO, with a population of 6.23K (6.83%). The Black or African American Alone population was the third largest racial group in O'Fallon city, MO, with a population of 4.62K (5.06%). The smallest racial group in O'Fallon city, MO was Native Hawaiian And Pacific Islander Alone with a population of 88 (0.10%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in O'Fallon city, MO, with a population of 74.34K (81.41%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in O'Fallon city, MO, with a population of 4.59K (5.02%). The Non-Hispanic - Black Alone population was the third largest ethnic group in O'Fallon city, MO, with a population of 4.57K (5.00%). The smallest ethnic group in O'Fallon city, MO was Hispanic - Native Hawaiian & Pac. Islander with a population of 9 (0.01%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in O'Fallon city, Missouri from the 2020 decennial census.

You can see similar information for other cities and places in Missouri and also for the state of Missouri.

O'Fallon city, MO Hispanics and Non Hispanics Population in Census 2020
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O'Fallon city, MO Racial Groups in Census 2020
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O'Fallon city, MO Ethnicity Groups in Census 2020
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O'Fallon city, MO Population of Racial Groups in Census 2020
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Race Population % of City or Place Population
Black or African American Alone 4620 5.06
White Alone 75133 82.28
American Indian and Alaska Native Alone 205 0.22
Asian Alone 3704 4.06
Native Hawaiian And Pacific Islander Alone 88 0.10
Some Other Race Alone 1334 1.46
Two Or More Races 6232 6.83
O'Fallon city, MO Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of City or Place Population
Non-Hispanic - White Alone 74340 81.41
Non-Hispanic - Two or More Races 4586 5.02
Non-Hispanic - Black Alone 4568 5.00
Non-Hispanic - Asian Alone 3688 4.04
Hispanic - Two or More Races 1646 1.80
Hispanic - Some Other Race Alone 1058 1.16
Hispanic - White Alone 793 0.87
Non-Hispanic - Some Other Race Alone 276 0.30
Non-Hispanic - American Indian & Alaska Native 140 0.15
Non-Hispanic - Native Hawaiian & Pac. Islander 79 0.09
Hispanic - American Indian & Alaska Native 65 0.07
Hispanic - Black Alone 52 0.06
Hispanic - Asian Alone 16 0.02
Hispanic - Native Hawaiian & Pac. Islander 9 0.01