Jefferson, Idaho Voting-age Population By Race and Ethnicity from Census 2020

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 20.37K voting-age population of Jefferson, ID residents comprised of 1.96K residents who identified as Hispanic or Latino (9.62%), and 18.41K residents who identified as Non-Hispanic (90.38%).

Race: The White Alone voting-age population was the largest racial group in Jefferson, ID, with a voting-age population of 18.06K (88.63%). The Some Other Race Alone voting-age population was the second largest racial group in Jefferson, ID, with a voting-age population of 1.12K (5.52%). The Two Or More Races voting-age population was the third largest racial group in Jefferson, ID, with a voting-age population of 897 (4.40%). The smallest racial group in Jefferson, ID was Native Hawaiian And Pacific Islander Alone with a voting-age population of 26 (0.13%).

Ethnicity: The Non-Hispanic - White Alone voting-age population was the largest ethnic group in Jefferson, ID, with a voting-age population of 17.69K (86.85%). The Hispanic - Some Other Race Alone voting-age population was the second largest ethnic group in Jefferson, ID, with a voting-age population of 1.06K (5.18%). The Hispanic - Two or More Races voting-age population was the third largest ethnic group in Jefferson, ID, with a voting-age population of 483 (2.37%). The smallest ethnic group in Jefferson, ID was Hispanic - Native Hawaiian & Pac. Islander with a voting-age population of 2 (0.01%).

The charts and tables below shows the voting-age 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 Voting-age Hispanics and Non Hispanics Population in Census 2020
Total Voting-age Population:
Jefferson, ID Voting-age Racial Groups in Census 2020
Total Voting-age Population:
Jefferson, ID Voting-age Ethnicity Groups in Census 2020
Total Voting-age Population:
Jefferson, ID Voting-age Population of Racial Groups in Census 2020
Items per page:
0 of 0
Race Voting-age Population % of County Voting-age Population
Black or African American Alone 43 0.21
White Alone 18056 88.63
American Indian and Alaska Native Alone 128 0.63
Asian Alone 98 0.48
Native Hawaiian And Pacific Islander Alone 26 0.13
Some Other Race Alone 1124 5.52
Two Or More Races 897 4.40
Jefferson, ID Voting-age Population of Ethnicity Groups in Census 2020
Items per page:
0 of 0
Ethnicity Voting-age Population % of County Voting-age Population
Non-Hispanic - White Alone 17692 86.85
Hispanic - Some Other Race Alone 1055 5.18
Hispanic - Two or More Races 483 2.37
Non-Hispanic - Two or More Races 414 2.03
Hispanic - White Alone 364 1.79
Non-Hispanic - Asian Alone 92 0.45
Non-Hispanic - American Indian & Alaska Native 87 0.43
Non-Hispanic - Some Other Race Alone 69 0.34
Hispanic - American Indian & Alaska Native 41 0.20
Non-Hispanic - Black Alone 35 0.17
Non-Hispanic - Native Hawaiian & Pac. Islander 24 0.12
Hispanic - Black Alone 8 0.04
Hispanic - Asian Alone 6 0.03
Hispanic - Native Hawaiian & Pac. Islander 2 0.01