Jefferson, Idaho Census 2020 Population By Race and Ethnicity

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 30.89K population of Jefferson, ID residents comprised of 3.26K residents who identified as Hispanic or Latino (10.54%), and 27.64K residents who identified as Non-Hispanic (89.46%).

Race: The White Alone population was the largest racial group in Jefferson, ID, with a population of 27.09K (87.70%). The Some Other Race Alone population was the second largest racial group in Jefferson, ID, with a population of 1.73K (5.61%). The Two Or More Races population was the third largest racial group in Jefferson, ID, with a population of 1.62K (5.24%). The smallest racial group in Jefferson, ID was Native Hawaiian And Pacific Islander Alone with a population of 34 (0.11%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Jefferson, ID, with a population of 26.43K (85.56%). The Hispanic - Some Other Race Alone population was the second largest ethnic group in Jefferson, ID, with a population of 1.63K (5.26%). The Hispanic - Two or More Races population was the third largest ethnic group in Jefferson, ID, with a population of 868 (2.81%). The smallest ethnic group in Jefferson, ID was Hispanic - Native Hawaiian & Pac. Islander with a population of 4 (0.01%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in Jefferson, Idaho from the 2020 decennial census.

You can see similar information for other Idaho counties and also for the state of Idaho.

Jefferson, ID Hispanics and Non Hispanics Population in Census 2020
Total Population:
Jefferson, ID Racial Groups in Census 2020
Total Population:
Jefferson, ID Ethnicity Groups in Census 2020
Total Population:
Jefferson, ID Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 86 0.28
White Alone 27092 87.70
American Indian and Alaska Native Alone 204 0.66
Asian Alone 124 0.40
Native Hawaiian And Pacific Islander Alone 34 0.11
Some Other Race Alone 1732 5.61
Two Or More Races 1619 5.24
Jefferson, ID Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 26430 85.56
Hispanic - Some Other Race Alone 1626 5.26
Hispanic - Two or More Races 868 2.81
Non-Hispanic - Two or More Races 751 2.43
Hispanic - White Alone 662 2.14
Non-Hispanic - American Indian & Alaska Native 127 0.41
Non-Hispanic - Asian Alone 118 0.38
Non-Hispanic - Some Other Race Alone 106 0.34
Hispanic - American Indian & Alaska Native 77 0.25
Non-Hispanic - Black Alone 73 0.24
Non-Hispanic - Native Hawaiian & Pac. Islander 30 0.10
Hispanic - Black Alone 13 0.04
Hispanic - Asian Alone 6 0.02
Hispanic - Native Hawaiian & Pac. Islander 4 0.01