Population By Race and Ethnicity in Jefferson County, ID in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the 31,077 population of Jefferson County, Idaho comprised of 3,347 people who identified as Hispanic (10.77%), and 27,730 people who identified as Non-Hispanic (89.23%).

Race: The White Alone population was the largest racial group in Jefferson County, Idaho with a population of 29,690 (95.54%); Two Or More Races population was the second largest racial group with a population of 609 (1.96%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 416 (1.34%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Idaho in 2020, with a population of 26,830 (86.33%); the second largest ethnic group was White Alone - Hispanic with a population of 2,860 (9.2%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 440 (1.42%).

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 2020
Total Population:
Race in Jefferson County, ID in 2020
Total Population:
Ethnicity in Jefferson County, ID in 2020
Total Population:
Population By Race in Jefferson , ID in 2020
Race Population Percentage
Black or African American Alone 129 0.42%
White Alone 29,690 95.54%
American Indian and Alaska Native Alone 416 1.34%
Asian Alone 177 0.57%
Native Hawaiian And Pacific Islander Alone 56 0.18%
Two Or More Races 609 1.96%
Population By Ethnicity in Jefferson , ID in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 49 0.16%
White Alone - Hispanic 2,860 9.2%
American Indian and Alaska Native Alone - Hispanic 240 0.77%
Asian Alone - Hispanic 14 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 15 0.05%
Two Or More Races - Hispanic 169 0.54%
Black or African American Alone - Non Hispanic 80 0.26%
White Alone - Non Hispanic 26,830 86.33%
American Indian and Alaska Native Alone - Non Hispanic 176 0.57%
Asian Alone - Non Hispanic 163 0.53%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 41 0.13%
Two Or More Races - Non Hispanic 440 1.42%