Population By Race and Ethnicity in Jefferson County, MT in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 12,211 population of Jefferson County, Montana comprised of 350 people who identified as Hispanic (2.87%), and 11,861 people who identified as Non-Hispanic (97.13%).

Race: The White Alone population was the largest racial group in Jefferson County, Montana with a population of 11,578 (94.82%); Two Or More Races population was the second largest racial group with a population of 279 (2.29%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 227 (1.86%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Montana in 2019, with a population of 11,278 (92.36%); the second largest ethnic group was White Alone - Hispanic with a population of 300 (2.46%); and the third largest ethnic group was Two Or More Races - Non Hispanic with a population of 262 (2.15%).

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 2019
Total Population:
Race in Jefferson County, MT in 2019
Total Population:
Ethnicity in Jefferson County, MT in 2019
Total Population:
Population By Race in Jefferson , MT in 2019
Race Population Percentage
Black or African American Alone 53 0.43%
White Alone 11,578 94.82%
American Indian and Alaska Native Alone 227 1.86%
Asian Alone 62 0.51%
Native Hawaiian And Pacific Islander Alone 12 0.1%
Two Or More Races 279 2.29%
Population By Ethnicity in Jefferson , MT in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 4 0.03%
White Alone - Hispanic 300 2.46%
American Indian and Alaska Native Alone - Hispanic 28 0.23%
Asian Alone - Hispanic 1 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 0 0%
Two Or More Races - Hispanic 17 0.14%
Black or African American Alone - Non Hispanic 49 0.4%
White Alone - Non Hispanic 11,278 92.36%
American Indian and Alaska Native Alone - Non Hispanic 199 1.63%
Asian Alone - Non Hispanic 61 0.5%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 12 0.1%
Two Or More Races - Non Hispanic 262 2.15%