Race, Diversity, and Ethnicity in Jefferson County, MO

The map below shows majority race by area in Jefferson County, as self-identified on the US census. Darker shades indicate a larger racial majority in that neighborhood. This page also contains data and maps on Jefferson County racial diversity and diversity scores. Click here to scroll to diversity data.

Jefferson County, MO map of race and ethnicity
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White
Hispanic
Black
Asian
Multiple/Other
WhiteHispanicBlackAsianMultiple/Other
Majority race by area

The majority race in Jefferson County overall is white, making up 88.4% of residents. The next most-common racial group is other at 6.8%. There are more white people in the southwest areas of the county. People who identify as other are most likely to be living in the east places. The data below shows how many people identify themselves as each of the following races, which most Americans base on their family's national origin:

Race in Jefferson County

 
Self-Identified Race
Jefferson County, MO Population
White
88.4%
Hispanic
2.6%
Black
1.1%
Asian
1.0%
Native American
0.1%
Other
6.8%
   

Diversity and Diversity Scores for Jefferson County, MO

The map below shows diversity in Jefferson County. Areas in green are more diverse, while areas in red are much less diverse. Diversity, in this case, means a mixture of people with different race and ethnicity living close to one another. For example, all-black and all-white areas in the county would both be considered lacking diversity.

Jefferson County, MO map of race and ethnicity
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Jefferson County Diversity Score

21.3

More diverse than 33% of US counties

Jefferson County has a diversity score of 21.3: the chance, in percent, that two residents picked at random belong to different racial or ethnic groups, from ACS race counts. A place where everyone shares one group scores 0, and an even mix of the six groups in the chart above scores the maximum, 83.3. Jefferson County is less diverse than other US counties, more diverse than 33% of them. Within Jefferson County's proper boundaries, the most diverse area is east Jefferson County, and the least diverse areas are in southwest Jefferson County.

Source: BestNeighborhood calculations from the U.S. Census Bureau, American Community Survey (ACS) 2020-2024 5-year estimates (race and Hispanic origin); proprietary data mapping and analysis. Special thanks to the University of Virginia.

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