Jefferson, Illinois Population By Ethnicity in Census 2020
Updated on February 22, 2026.
According to the data from the US 2020 decennial Census, in April 2020, among Jefferson, IL population of 37,113 people, 84.02% (31,182) identified their ethnicity as Non-Hispanic - White Alone, 7.50% (2,783) identified their ethnicity as Non-Hispanic - Black or African American Alone, and 4.70% (1,745) identified their ethnicity as Non-Hispanic - Two Or More Races.
The first chart below shows the population by ethnicity and the second chart shows the percentage of the population for each ethnicity. You can also find the information in a table below.
You can see similar information for other Illinois counties and also for the state of Illinois.
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Data Source: US Census Bureau, 2020 Census.
Jefferson, IL Population By Ethnicity in Census 2020
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| Ethnicity | Population | % of County Population |
|---|---|---|
| Non-Hispanic - White Alone | 31182 | 84.02 |
| Non-Hispanic - Black or African American Alone | 2783 | 7.50 |
| Non-Hispanic - Two Or More Races | 1745 | 4.70 |
| Non-Hispanic - Asian Alone | 352 | 0.95 |
| Hispanic - Two Or More Races | 279 | 0.75 |
| Hispanic - Some Other Race Alone | 275 | 0.74 |
| Hispanic - White Alone | 258 | 0.70 |
| Non-Hispanic - American Indian and Alaska Native Alone | 77 | 0.21 |
| Non-Hispanic - Some Other Race Alone | 68 | 0.18 |
| Hispanic - Black or African American Alone | 59 | 0.16 |
| Hispanic - American Indian and Alaska Native Alone | 15 | 0.04 |
| Hispanic - Asian Alone | 13 | 0.04 |
| Non-Hispanic - Native Hawaiian And Pacific Islander Alone | 7 | 0.02 |
| Hispanic - Native Hawaiian And Pacific Islander Alone | 0 | 0.00 |
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