Population By Race and Ethnicity in Jefferson County, ID in 2021

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2021, the 32,201 population of Jefferson County, Idaho comprised of 3,440 people who identified as Hispanic (10.68%), and 28,761 people who identified as Non-Hispanic (89.32%).

Race: The White Alone population was the largest racial group in Jefferson County, Idaho with a population of 30,831 (95.75%); Two Or More Races population was the second largest racial group with a population of 560 (1.74%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 426 (1.32%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Idaho in 2021, with a population of 27,878 (86.58%); the second largest ethnic group was White Alone - Hispanic with a population of 2,953 (9.17%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 410 (1.27%).

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

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

See this for other years:
Hispanics and Non Hispanics in Jefferson County, ID in 2021
Total Population:
Race in Jefferson County, ID in 2021
Total Population:
Ethnicity in Jefferson County, ID in 2021
Total Population:
Population By Race in Jefferson , ID in 2021
Race Population Percentage
Black or African American Alone 139 0.43%
White Alone 30,831 95.75%
American Indian and Alaska Native Alone 426 1.32%
Asian Alone 190 0.59%
Native Hawaiian And Pacific Islander Alone 55 0.17%
Two Or More Races 560 1.74%
Population By Ethnicity in Jefferson , ID in 2021
Ethnicity Population Percentage
Black or African American Alone - Hispanic 52 0.16%
White Alone - Hispanic 2,953 9.17%
American Indian and Alaska Native Alone - Hispanic 249 0.77%
Asian Alone - Hispanic 22 0.07%
Native Hawaiian And Pacific Islander Alone - Hispanic 14 0.04%
Two Or More Races - Hispanic 150 0.47%
Black or African American Alone - Non Hispanic 87 0.27%
White Alone - Non Hispanic 27,878 86.58%
American Indian and Alaska Native Alone - Non Hispanic 177 0.55%
Asian Alone - Non Hispanic 168 0.52%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 41 0.13%
Two Or More Races - Non Hispanic 410 1.27%