Population By Race and Ethnicity in Jefferson, MT in 2011

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2011, the 11,373 population of Jefferson County, Montana comprised of 241 people who identified as Hispanic (2.12%), and 11,132 people who identified as Non-Hispanic (97.88%).

Race: The White Alone population was the largest racial group in Jefferson County, Montana with a population of 10,890 (95.75%); Two Or More Races population was the second largest racial group with a population of 244 (2.15%); and American Indian and Alaska Native Alone was the third largest racial group with a population of 173 (1.52%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Jefferson County, Montana in 2011, with a population of 10,671 (93.83%); the second largest ethnic group was Two Or More Races - Non Hispanic with a population of 229 (2.01%); and the third largest ethnic group was White Alone - Hispanic with a population of 219 (1.93%).

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, MT in 2011
Total Population:
Race in Jefferson, MT in 2011
Total Population:
Ethnicity in Jefferson, MT in 2011
Total Population:
Population By Race in Jefferson , MT in 2011
RacePopulationPercentage
Black or African American Alone 24 0.21%
White Alone 10,890 95.75%
American Indian and Alaska Native Alone 173 1.52%
Asian Alone 40 0.35%
Native Hawaiian And Pacific Islander Alone 2 0.02%
Two Or More Races 244 2.15%
Population By Ethnicity in Jefferson , MT in 2011
EthnicityPopulationPercentage
Black or African American Alone - Hispanic 0 0%
White Alone - Hispanic 219 1.93%
American Indian and Alaska Native Alone - Hispanic 6 0.05%
Asian Alone - Hispanic 1 0.01%
Native Hawaiian And Pacific Islander Alone - Hispanic 0 0%
Two Or More Races - Hispanic 15 0.13%
Black or African American Alone - Non Hispanic 24 0.21%
White Alone - Non Hispanic 10,671 93.83%
American Indian and Alaska Native Alone - Non Hispanic 167 1.47%
Asian Alone - Non Hispanic 39 0.34%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 2 0.02%
Two Or More Races - Non Hispanic 229 2.01%