Population By Race and Ethnicity in Jefferson County, MO in 2020

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the 226,937 population of Jefferson County, Missouri comprised of 5,549 people who identified as Hispanic (2.44%), and 221,388 people who identified as Non-Hispanic (97.56%).

Race: The White Alone population was the largest racial group in Jefferson County, Missouri with a population of 217,506 (95.84%); Two Or More Races population was the second largest racial group with a population of 3,909 (1.72%); and Black or African American Alone was the third largest racial group with a population of 2,726 (1.2%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Missouri in 2020, with a population of 212,576 (93.67%); the second largest ethnic group was White Alone - Hispanic with a population of 4,930 (2.17%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 3,646 (1.61%).

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

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

See this for other years:
Hispanics and Non Hispanics in Jefferson County, MO in 2020
Total Population:
Race in Jefferson County, MO in 2020
Total Population:
Ethnicity in Jefferson County, MO in 2020
Total Population:
Population By Race in Jefferson , MO in 2020
Race Population Percentage
Black or African American Alone 2,726 1.2%
White Alone 217,506 95.84%
American Indian and Alaska Native Alone 806 0.36%
Asian Alone 1,898 0.84%
Native Hawaiian And Pacific Islander Alone 92 0.04%
Two Or More Races 3,909 1.72%
Population By Ethnicity in Jefferson , MO in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 120 0.05%
White Alone - Hispanic 4,930 2.17%
American Indian and Alaska Native Alone - Hispanic 182 0.08%
Asian Alone - Hispanic 39 0.02%
Native Hawaiian And Pacific Islander Alone - Hispanic 15 0.01%
Two Or More Races - Hispanic 263 0.12%
Black or African American Alone - Non Hispanic 2,606 1.15%
White Alone - Non Hispanic 212,576 93.67%
American Indian and Alaska Native Alone - Non Hispanic 624 0.28%
Asian Alone - Non Hispanic 1,859 0.82%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 77 0.03%
Two Or More Races - Non Hispanic 3,646 1.61%