Population By Race and Ethnicity in Jefferson County, MT in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 12,084 population of Jefferson County, Montana comprised of 317 people who identified as Hispanic (2.62%), and 11,767 people who identified as Non-Hispanic (97.38%).

Race: The White Alone population was the largest racial group in Jefferson County, Montana with a population of 11,496 (95.13%); Two Or More Races population was the second largest racial group with a population of 251 (2.08%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 216 (1.79%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Montana in 2018, with a population of 11,230 (92.93%); the second largest ethnic group was White Alone - Hispanic with a population of 266 (2.2%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 235 (1.95%).

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

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

See this for other years:
Hispanics and Non Hispanics in Jefferson County, MT in 2018
Total Population:
Race in Jefferson County, MT in 2018
Total Population:
Ethnicity in Jefferson County, MT in 2018
Total Population:
Population By Race in Jefferson , MT in 2018
Race Population Percentage
Black or African American Alone 52 0.43%
White Alone 11,496 95.13%
American Indian and Alaska Native Alone 216 1.79%
Asian Alone 57 0.47%
Native Hawaiian And Pacific Islander Alone 12 0.1%
Two Or More Races 251 2.08%
Population By Ethnicity in Jefferson , MT in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 9 0.07%
White Alone - Hispanic 266 2.2%
American Indian and Alaska Native Alone - Hispanic 25 0.21%
Asian Alone - Hispanic 1 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 0 0%
Two Or More Races - Hispanic 16 0.13%
Black or African American Alone - Non Hispanic 43 0.36%
White Alone - Non Hispanic 11,230 92.93%
American Indian and Alaska Native Alone - Non Hispanic 191 1.58%
Asian Alone - Non Hispanic 56 0.46%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 12 0.1%
Two Or More Races - Non Hispanic 235 1.95%